I still say computer and cars do not mix

old

Well-known Member
Well took my wife's car today to my V.A. appointment. It did just fine till I ran in to a traffic jam. At that point it over heated because of a bad computer part a simple stupid relay was bad and because it was bad the radiator fan did not come on and the car got hot. Yes a rant why can't they just use a simple engine run fan on them and be done with it instead of a electric fan that has to has extra relays etc to make them work which of course go bad and then your stuck sitting for an hour for the engine to cool down. Oh by the way a new relay is $25 so I did the simple thing and made a jumper for the bad relay till I can get a new one
 
I get irritated with it too, but when I think about all the raised hoods, spark plugs, caps, rotors, points, carburetor kits dwell meters and timing lights that used to be required, i don't know how I would have the time to keep up with it anymore.
 
Cars had electric fans and fan relays long before they had computers. The fan is usually controlled by a thermostat switch independent of the computer. And I don't understand how you can install a "simple engine run fan" on a vehicle with a transverse mounted engine. That would be one Rube Goldberg contraption for sure.
 
I removed my engine run clutch fan and installed dual electric fans on my truck, and have never had a problem with them. Sometimes things break whether they be computer related or purely mechanical. E=fans cool many times better and don't rob horsepower from the motor as well as allow a motor to be mounted in other configurations than crankshaft pointing towards the radiator.
 
I agree.What they needed to do from the beginning of putting computers on cars was wire in a switch to over ride all of the nonsense and just run.Instead they wired it to where you have to take it them to fix it,or spend a fortune throwing parts at it,or maybe even junk it over a bad wire somewhere.
I mean they have it to where you can hook a computer to it,but nobody has the right plug in to hook it up?Or metric fuel lines you cant hook a gauge to,or even find a fitting for a gauge.The whole idea is so that you throw it away and buy another one,so some rich guy somewhere can make even more money off of your labor.They dont care if you can barely buy food now,they will jack the price of that up too.
Its way past time when people should have rejected this stuff.Actually they did because the auto makers went bankrupt.They are so hard headed that they wont quit screwing the public though because they make lots of money by having things this way.I guess unless people quit buying their crap completely,they will keep making it that way.
There is no reason that any of the stuff under the hood of a car needs a computer to run it.There is no reason that a fan needs a 25 dollar relay to make it come on,even if it is run by a computer.All of this crap is so some college boy could have a job.Look under the hood of any car from the 1950s and there is none of that garbage on it,and they ran good.They also ran on alcohol,Thunder Road and other shows from those days are proof.
The whole society has been dragged into believing a bunch of lies,on more than just cars,so a bunch of thieves can live high off of stealing from them.
If car makers dont build more simple cars,one day the USA is going to be like that movie Borat where over in Russia they hook an ox on the front of a pickup for power.
If a million people would show up in Detroit one day and demand they build stuff you can fix,I bet they would do it.But no,people dont have enough guts to do that,and will just go on getting screwed,and buying some piece of crap to keep up with their neighbor.Vanity.I have to look good in my piece of crap car,so I can stick my nose up in the air when I drive by the peons as I go to church.
 
Good Lord ! Part of the reason we have all these great improvements on todays cars is because of treehuggers screaming for less pollution ! Do really think car makers spend like to spend billions on changes and engineering for the heck of it ? Come on , do you really think that old POS car of days gone by actually ran better than todays cars? Could you go out at -30 hit the key and have it start right up without having to play with the choke ? What do you mean can't plug in or hook up fuel pressure guage? Most modern well equipped shop have the scanners and diagnostic tools required to work on todays cars .If not, then they are like dinosaurs ,doomed to fail! Even if a million people showed up wanting old junkers to be built again , I think the EPA would have some say about it . How do you get a typewriter to work on the internet ?? Same mentality.
 
Relays have been used for years on cars. Relays use a low amperage current and magnetic induction to turn on and off loads of greater amperage. You don't run the ENTIRE high-amperage load of your starter through the ignition switch, do you? OF COURSE NOT. Just because YOU don't understand how something works doesn't necessarily make the concept evil.
 
Think about our old cars and trucks. We were lucky to get 150,000 miles on one. You would need to do the annual tune-up during the hottest days of summer or coldest days of winter. Air Conditioning was a luxury. The gas tanks were 24 gallons and filled up quite often.

AM radio was the thing until 8-tracks.

Tires lasted how long? I have 70k on mine and they are still fine.

And the 70K on the pickup has not had me do anything but oil changes, fill the gas tank and the windshield washer fluid.

I can lock/unlock the pickup from 100 feet away and use the horn to help me find it in a big parking lot.

I get 18 mpg in a Ram 2500 with the Hemi.

I bought the computer checking device from Harbor Freight to check errors on my vehicles but have not used it on the Ram.

I do get an occasional "Check Engine" light but that is usually due to me not putting the gas cap on correctly.

Yep, I miss my old GMC Pickup. No Air, No AM/FM/CD/MP3, Manual windows, stick shift, no intermittent wipers, no cruise, 16 mpg, and a distributor cap that needed replacement every 3 years.
 
remember when you would go out and start the pickup, you'd get the choke set where it would run at high idle, go back into the house to get something then come back out to find it was choking and gasping or not running at all.
Computer controlled fuel injection cured this!
 
I know it's a pain but the truth is as most people here have stated.
"Cars are built better today than they have ever been". Easier to fix "No". You can't have both.
Old, just go out and buy you an old mid-fiftys or early 60s car and keep it. That way when you are broken down you'll be able to fix it and you won't upset yourself.
 
Speaking of Rube Goldberg devices, did you ever see the cooling fan on a Corvair? You're right, though, if you over-revved a Corvair you could throw the fan belt.
 
Fan relay probably has nothing to do with the computer in that car. Controlled by a simple thermostat.
You would be bitching worse if the water pump or fan clutch had gone out and the fan had taken the radiator when the bearing let loose...
 
Hey Old, before you go spending $25 on what is probably an off the shelf relay give Waytek"s site a look and see if they have what you need. Admittedly they have a minimum order but if your going to spend $25 either way why not get the relay for $5 or so and then maybe get a spare too, and then some terminal ends, connectors, etc that are always handy to have around.
Waytek Wire
 
And so much more. As already stated, cold starts but also spark plugs don't have to be changed nearly as frequently, catalytic converters plug up less, vehicles die more of old age rather than excessive mileage. Having said that, more problems now are due to faulty sensors than actual engine problems. I have had the engine light coming on in my truck (1998 Silverado 5.7)for over a year now. I scanned it with my handheld scanner and it's the EGR valve. Truck still runs just fine but from what I'm told it can affect your fuel mileage and eventually foul plugs etc. But if I didn't have the scanner I likely would have taken it to the shop and dumped a bunch of $$ into it.
Bottom line is that I've had it for 5-6 years and other than oil changes, I have not had to do a thing to it. It's now 12 years old and in the shop for a front end alignment. No parts needed, just alignment. It has apparently never been done in 12 years..........and it really wasn't driving all that badly but I hate driving straight with my wheel turning to the right!
 
I agree that vehicles, for the most part, are built better, more reliable, better on gas, then some years ago.
However the greedy ones also know that they are going to make millions in after the sale service due to people's "fear factor" and lack of true knowledge.
All a service tech needs to do is talk that stupid talk about "the compter says", and many people fall for it.
Until the handheld diagnostic, you had to pay someone to find out the "dummy light" problem.
We all know that fuel injection is much more effecient than "toilet bowl" caburetors that dump fuel. GM was putting fuel injection on limited cars back as early as the 1950's. Why do you think it took so long to get rid of the carb? Well, let me guess.
 
Would you believe my Mom and I where talking about me pulling the old 1965 Chev Bel-air out of the shed and getting it going again. It has sat in a shed now for at least 1.5 decades but did run well when it was parked. Has the old 283 and the old slip slide power glide tranny and has less then 73,000 miles on it. Still look real good to boot. My grand father got it in late 65 and it had been a dealers loaner car for when a person had there's in the shop so it was real low miles when he got it
 
No it is not my car I was just trying to help a guy out by working on it. I have not heard any thing from him since that day but he is also unemployed right now so his $$ are extra tight and there are very few jobs in this area also
 
(quoted from post at 09:20:58 07/08/10) Would you believe my Mom and I where talking about me pulling the old 1965 Chev Bel-air out of the shed and getting it going again. It has sat in a shed now for at least 1.5 decades but did run well when it was parked. Has the old 283 and the old slip slide power glide tranny and has less then 73,000 miles on it. Still look real good to boot. My grand father got it in late 65 and it had been a dealers loaner car for when a person had there's in the shop so it was real low miles when he got it

Go for it. You'll have a nice, big, comfortable and safe ride that will still get 18 to 20 mpg or better, and tune-ups and other maintenance will be a breeze.
 
Ya I know there are good and bad points to either system but I look at it this way I have tractors older then me that just keep on keeping on but I have yet to find a car that held up as well go fiugure that one out just doesn't seem right
 
Buzz I know all about them or maybe you forgot I spent 6 years in the Navy as an ET so I know zap-u-trons better then most people do and I repaired computers/TVs/Radio for a living for decades so yes I know and that is why I have been able to wire around that relay so the car can be driven till I get a new relay for it. Only problem is the fan runs any time the key is on now which this time of year in not a bad thing. But I still say they have gone to far on the computers on cars now days
 
Ya sort of hard to beat one of them old Chev's up with the cars on the road now days. But then there is the fact it needs the brakes redone front to back don't know if it is just wheel cylinders or what but it will not hold fluid and all sorts of other thing. My still try to get it going but have said that now for 4 or 5 years just never seems to be enough time to get any thing done
 
Me being a tech is why I say computers and cars do not mix. Hard to keep a computer working when they get to hot or to cold or hit one to many bumps in the road
 
Computers and farm equipment dont mix well either. Neighboring farmer leased a CAT challenger rubber tired tractor. Suppose to be latest and greatest thing. Ya rite. I cant tell you how many times it was broke down because of the computer. O and you are not suppose to drive it in the rain either. screws up the sensors for the computer.Straight from the mouth of CAT. Hmmm lets take something that is sensitive to the elements and put it in a tractor.
 

I know how relays work.I also know they dont need to cost 25 dollars.I have a Lincoln and everything on the engine that Ive had to replace costs a hundred dollars or more.

If you work on cars you know what I said was exactly true.And yes there is a lot of evil in the world.There is not any reason to make a car like this other than you have to take it to somebody else to fix.I can string a Cummins diesel engine out in half a day and rebuild it in 3,and not even look at a book,much less hook anything to a computer,but this new stuff,you cant even find anybody smart enough to ask whats wrong a lot of times.
Yes the new stuff gets better mileage and lasts longer but the government demanded they get better mileage and people demanded it lasted longer.If mechanics would demand it be made where they could work on it,it would.
So whats wrong with a carburetor?Nothing.Whats wrong with a choke?Nothing.Everything run by a computer can be run manually too.
Or maybe this will work,say you dont know anything about a car,let them sell you this model piece of crap that has to betaken back to them to fix.Say you are a mechanic,they can sell you something like they made in the 1950s.Only that gets better mileage and lasts longer.
 
Ah, computers and cars don't mix.........that I can agree with in principal. But to say that a computer that is in a car is in any way like a computer you go on the internet on is a bit of a stretch. Fuel injection and ignition controlled by a computer is fine.........but they take things a bit too far.
I install remote car starters on the side and let me tell you, within the next 5-10 years when some of these vehicles start to develop electrical problems, look out!! You haven't even begun to see the havoc yet! Any GM product made in the last 3-4 years is an absolute nightmare. There is so much security involved in simply starting the engine that it would make your head spin. It surprising they run at all. Everything is controlled by data pulses, not the good ole' 12V to and from the ignition switch.

A relay, now that's a simple electromagnetic device..........much like an electric motor. They've been around for decades and yes, like anything electrical, they eventually fail.
 
No body remembers all the jump starts, corroded batteries. Fouled plugs and burned points every 3-4 thousand miles. Lousy fuel efficiency. V belts that required tightening and replacement every 10,000 miles. Exhaust systems that corroded through every 3-4 years. Body work that rusted through in 3 years. Bias tires every 15,000-30,000 miles. Stuck on chokes. Manual choke pulled on by hand and forgotten. Engines that won't start in the ran due to wet dist caps. Automatic transmission that burned out towing trailers.
All in all, vehicles have never been better.
 
What you do not own a tractor same thing applies to them. And yes I remember I still own 2 or 3 that have points etc. Now I did say computers I did not say electronic ignitions and some of that.
 
Ya you get close to what I am saying. The y have gotten to the point that on cars they have to much electronics's and that is what makes them a mess. Ya electronic ignition is fine and fuel injection is fine but having so much wire under the hood that you have 50 ls of wire there that is going to far. Like a few years ago a Caddy had to be put on dollies front and back just to haul it in because when that $2500 computer went out it locked up the brakes all around plus locked up the door, steering wheel etc etc
 
If the people would stand up to them the EPA would do what the people wanted.The whole thing is a scam now days.20 years ago the EPA did some good,now its a tool to fight small business the way I see it.

You come at me with this stuff,look I said anything on a car does not need to be run by a computer.For every electrical thing,there is a mechanical solution.But as far as that goes I wouldnt have a problem with a computer controlling stuff if it wouldnt stop the car from running!I want my computer operated car to run,no matter what.I want the EPA to get out of my life if they are going to mess things up.

I just resent that they make it hard to fix.I have a Chevy,a Ford,and 3 Ford cars and a Nissan.Its easier for me to keep the Chevy running as its electrical stuff is still simple.Its more expensive than vehicles without a computer though.

Its way past too late now.I drove some brand new diesel trucks(tractor trailer) last summer.Hey I hate computers.Spent all day running one day at 54 MPH because this air shift piece of junk had something wrong,spent 8 hours at Freightliner,who didnt have the parts to fix it,but took something off and "cleaned it,drove 60 miles and it started doing it again.Took it back and traded it for another one that had no power.How many tractors can you try in a week before you have one that will work?And you can forget getting a mechanic to fix anything,they just replace parts,and you hope they get the right thing,even with a computer hook up they still guess.
Sorry,you will need to work a whole lot harder to convince me that things should be this way.
I even worked on TVs for about 6 months when I got out of high school.I have had a little success on my Lincoln with a test light and talking to an old Ford mechanic,but he is out of business now.
This crap they are building is for the seller only.They need to do a lot better than this.
 
I don't think points that lasted 15 or more years was bad and radial tires now do not last that long.
 
Old, I think I found one for you. Saw it today in Lebanon. 64, Chev, SS 2dr, ht, 327 power pac, 4 speed, 56,000 miles, original owner. Looked and ran like a dream. I wanted to ride in it but it was raining and he wouldn't take it out in wet weather. Said he gave a little over 2 thousand for it. He said to the right person he'd consider any offer over 50k.
 
Batteries still corrode connections,but they are better than they used to be.You could buy a new set of plugs,points,cap,wires,and do a tune up every 50,000 miles for less that it costs to take one and get it hooked to a computer diagnostic terminal at a dealer.Which still doesnt tell them whats wrong.Actually I have taken a car to a dealer and had it run worse after they worked on it before.I agree on the exhaust systems and body rusting out.The choke deal is minor,actually nothing because there were automatic chokes ever since I can remember working on cars back to the 1960s.Wet Distributer caps can be fixed with spray stuff that waterproofs them.Seems like automatic transmissions have improved,but I dont think a computer made that happen.Tires are some better,still has nothing to do with computers.

So when it comes down to it,even if there have been improvments,most of the improvments have nothing to do with computer controls.

Other things like electronic ignitions were better improvments than computer controls.

I still say the computer stuff is a rip off,plus it doesnt really tell you whats wrong.Either its designed that way to make you buy more parts,or they dont know what they are doing.Might be a little of both.Geek types dont usually know a lot about mechanical stuff.

The EPA,somebody else said, is mostly interested in smog.They had catalytic converters way before they had computers on engines.I guess younger people dont know that.They had mechanical fuel injection and superchargers and turbo chargers in the 1950s and 1960s.They werent concerned with fuel mileage then,but if they were they would have done it mechanically instead of with a computer since they werent made yet.When I went to High School in the early 1970s they were putting turbo chargers on cars to get better mileage then.No computer,just a turbo.

The whole computer thing is a big scam.Its not necessary.They need to make cars simpler,and last longer,get better mileage,and be easy to fix,and not cost a fortune.Like it is now,even if they do figure out what is wrong,and if they do put the parts on to fix it,the bill will be astronomical.

I remember my neighbor couldnt get his car running,neither could anybody else,so he finally called a wrecker and had it towed to the dealer.1600 dollars later they had it running.Plus he couldnt sell it for 1600 dollars.He needed a car every day so he bought a brand new pickup,still has it.But he finally sold his car for 1200 I think.

I mean points and plugs better not cost 1600 dollars.If you do the work yourself you can change an engine for less than 1600 dollars.Plus I doubt that what was wrong costed 1600 dollars,they just threw parts at it until it finally fixed it,and of course didnt take off what didnt work.

Ive heard other stories too,that wasnt even the worst.They are going to get big dollars from you if you want to keep your car,or they are going to sell you one on payments for the next 5 or 6 years,that will be 500 or more a month.Sorry,I just dont see any advantage for this,except for the people selling cars.It sure hasnt helped the car owners that much.The things not rusting out,and running longer are far outweighed if it breaks down.
 
(quoted from post at 05:47:13 07/09/10) Batteries still corrode connections,but they are better than they used to be.You could buy a new set of plugs,points,cap,wires,and do a tune up every 50,000 miles for less that it costs to take one and get it hooked to a computer diagnostic terminal at a dealer.Which still doesnt tell them whats wrong.Actually I have taken a car to a dealer and had it run worse after they worked on it before.I agree on the exhaust systems and body rusting out.The choke deal is minor,actually nothing because there were automatic chokes ever since I can remember working on cars back to the 1960s.Wet Distributer caps can be fixed with spray stuff that waterproofs them.Seems like automatic transmissions have improved,but I dont think a computer made that happen.Tires are some better,still has nothing to do with computers.

So when it comes down to it,even if there have been improvments,most of the improvments have nothing to do with computer controls.

Other things like electronic ignitions were better improvments than computer controls.

I still say the computer stuff is a rip off,plus it doesnt really tell you whats wrong.Either its designed that way to make you buy more parts,or they dont know what they are doing.Might be a little of both.Geek types dont usually know a lot about mechanical stuff.

The EPA,somebody else said, is mostly interested in smog.They had catalytic converters way before they had computers on engines.I guess younger people dont know that.They had mechanical fuel injection and superchargers and turbo chargers in the 1950s and 1960s.They werent concerned with fuel mileage then,but if they were they would have done it mechanically instead of with a computer since they werent made yet.When I went to High School in the early 1970s they were putting turbo chargers on cars to get better mileage then.No computer,just a turbo.

The whole computer thing is a big scam.Its not necessary.They need to make cars simpler,and last longer,get better mileage,and be easy to fix,and not cost a fortune.Like it is now,even if they do figure out what is wrong,and if they do put the parts on to fix it,the bill will be astronomical.

I remember my neighbor couldnt get his car running,neither could anybody else,so he finally called a wrecker and had it towed to the dealer.1600 dollars later they had it running.Plus he couldnt sell it for 1600 dollars.He needed a car every day so he bought a brand new pickup,still has it.But he finally sold his car for 1200 I think.

I mean points and plugs better not cost 1600 dollars.If you do the work yourself you can change an engine for less than 1600 dollars.Plus I doubt that what was wrong costed 1600 dollars,they just threw parts at it until it finally fixed it,and of course didnt take off what didnt work.

Ive heard other stories too,that wasnt even the worst.They are going to get big dollars from you if you want to keep your car,or they are going to sell you one on payments for the next 5 or 6 years,that will be 500 or more a month.Sorry,I just dont see any advantage for this,except for the people selling cars.It sure hasnt helped the car owners that much.The things not rusting out,and running longer are far outweighed if it breaks down.

And right there it is. In a nutshell, and it IS the truth.
 
Shoot before I would spend that much on it I would just put some money in the 1965 Chev Bel-air that is sitting at my moms place. It has only 72,000 miles on it and was parked back around 87 and has been on blocks ever since. Has a 283 with a slip slide power glide. 4 door and still looks real good, no rust etc.
 
I'm still not quite convinced.........every time I'm driving and I catch a whiff of a vehicle running rich, it is always some pre-1985 vehicle which likely is carburated. I'm not saying it is not possible to make it run correctly and burn a proper mixture, but it takes more time and maintenance. Yes, there are ways of mechanically fuel injecting vehicles as you say that date back to the 50's but those systems were complicated and lets face it, mechanical things need maintenance.........and often lots of it!
The equivalent mechanical system required to do all that a modern computer controlled vehicle is doing would be a) costly b) complicated c) unreliable and d) if not maintained very inefficient
If all the vehicles on the road today used strictly mechanical systems or electrical instead of computerized for fuel and ignition there would be far more breakdowns, lower fuel economy and more trips to the mechanic.
With a computer controlled fuel injection system you have eliminated 90% of moving parts associated with carburetor failure. No matter how well something is built, if it is mechanical eventually it will fail. If it is built so well that it will never fail, nobody could afford it!

Now.........having said all that, I do believe that computers in vehicles are in places where they should never be. They should never control your brakes, your throttle (just ask Toyota!) or your basic systems like lights, wipers, heating/cooling, steering, suspension, your radio and the security systems in many vehicles is way over the top! Heck, even the fuel gauge is run through the computer in my '98 Silverado...........but we won't even get into that!

So in some ways I agree, in others I really disagree.
 
100,000 on plugs ,wires . Shoot at 100,000 those old junkers were done for , needed rebuilt . 300,000 is very possible on most of todays cars . There is no big conspirasy theroy . People wanted better cars ! They didn't want to sit and baby sit a choke in cold weather. since there is such a demand for these clunkers ,why don't you start refurbishing newer cars with old technology and sell them . You 'd make millions ,right ? Oh theres that nasty profit word again . The cavemen are gone , still a few hanging on . While we're at it do away with all modern improvements, microwave, heating /air cond , running water ,etc . Also ,,todays cars are very fixable . OBD systems give you TONS of data . You just need to be SMART enough to know what to do with it . Throwing parts at it or taking it to Hillbilly Auto repair is bound to cost way more than taking it to a QUALITY well equipted and stafed reapir shop .
 
As I said some place else in the post ya for some stuff like fuel injection a computer is fine but they have gotten to a point on cars that there is to many wires going into that computer and it is controlling way to much stuff. Fuel and spark are one thing but all that other stuff no need for computers there
 
The only reason the newer ones are lasting longer is a different type of steel being used and has nothing to do with computors.
 
(quoted from post at 17:31:47 07/08/10) Buzz I know all about them or maybe you forgot I spent 6 years in the Navy as an ET so I know zap-u-trons better then most people do and I repaired computers/TVs/Radio for a living for decades so yes I know and that is why I have been able to wire around that relay so the car can be driven till I get a new relay for it. Only problem is the fan runs any time the key is on now which this time of year in not a bad thing. But I still say they have gone to far on the computers on cars now days

Would you care to tell us zackly how the coolant fan system works on this particular vehicle.... just wire'n around the relay does not confirm a kill,,, only tells ya that the wire'n twing the replay and fan is work'n and battery power is available to the relay to power the fan if the relay is commanded on....
 
(quoted from post at 13:16:26 07/09/10) 100,000 on plugs ,wires . Shoot at 100,000 those old junkers were done for , needed rebuilt . 300,000 is very possible on most of todays cars . There is no big conspirasy theroy . People wanted better cars ! They didn't want to sit and baby sit a choke in cold weather. since there is such a demand for these clunkers ,why don't you start refurbishing newer cars with old technology and sell them . You 'd make millions ,right ? Oh theres that nasty profit word again . The cavemen are gone , still a few hanging on . While we're at it do away with all modern improvements, microwave, heating /air cond , running water ,etc . Also ,,todays cars are very fixable . OBD systems give you TONS of data . You just need to be SMART enough to know what to do with it . Throwing parts at it or taking it to Hillbilly Auto repair is bound to cost way more than taking it to a QUALITY well equipted and stafed reapir shop .

Well said Bryan.
Lets add to the cost concerns the thousands of dollars less per year the computer controlled vehicle consumes.

B&D
 
Funny I had a 1962 Plymouth Valiant that had 400,000 plus on it and yes the engine had, had new rings and bearing put in it a few times but shoot that cost less then $500 each time. That was also back when I knew little about cars and I ran it till there where no points on the points and it would still run. Ya it was a tad bit hard to start but it still did start and run. My dad had an early 80s Toyota with no computer and no fuel injection that when he sold it had 350,000 on it so again goes back to it is not the computer that lets one keep going
 

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