1997 Ford truck question

Anonymous-0 · Jun 9, 2008

A 1997 Ford truck with a 4.6 does not get very good gas mileage, but a 1997 Crown Vic with a 4.6 does. Can you swap the computer from the Crown Vic into the truck?

Anonymous-0 · Jun 10, 2008

(quoted from post at 20:59:38 06/09/08) A 1997 Ford truck with a 4.6 does not get very good gas mileage, but a 1997 Crown Vic with a 4.6 does. Can you swap the computer from the Crown Vic into the truck?

Sure thing.... But you'll also need to cut the extra weight off the truck, swap out the wheels, tires, running gear, etc.
A truck's a truck, unless it's a tuning/service issue (check your codes), there's not much you can do except leave it set more.

Good Luck,

Dave

RobMD · Jun 10, 2008

I had a crown vic. It might have got 22 mpg on a good day. Your truck probably gets 13 or 14. It's not just in the weight, but also that the crown vic has a different tranny setup and a higher rear axle ratio.

Kevin in OK · Jun 10, 2008

Same truck, same engine here. I think Dave's got it right. A trucks a truck, and unless you can get it to be the same as the Crown Vic, it's gonna get the mileage of a truck. Same weight, same gear ratios, same aerodynamics, you might be able to get the gas mileage of a car... but you lose almost all of the usefulness as a truck.

Kevin

Anonymous-0 · Jun 10, 2008

If weight was the main factor, the 1993 Lincoln I owned should have gotten worse mileage than my little four cylinder Ranger, but it got a lot better. I think it is horsepower per cu inch, axle
ratio and computer programming.

Anonymous-0 · Jun 10, 2008

(quoted from post at 10:43:17 06/10/08) If weight was the main factor, the 1993 Lincoln I owned should have gotten worse mileage than my little four cylinder Ranger, but it got a lot better. I think it is horsepower per cu inch, axle
ratio and computer programming.

Sounds like you already had the answer you wanted to hear before you even asked. Swap away and let us know the outcome.

Dave

02XLT4X4 · Jun 10, 2008

(quoted from post at 10:43:17 06/10/08) If weight was the main factor, the 1993 Lincoln I owned should have gotten worse mileage than my little four cylinder Ranger, but it got a lot better. I think it is horsepower per cu inch, axle
ratio and computer programming.

Mainly being shaped more like a dart as opposed to a brick. As your speed doubles your drag quadrouples.

On top of that Ford trucks are usually geared high, my brothers 4.6 with 3.55 gears was always grabbing for third and maybe second on hills empty. He put true duals on and now it downshifts as often as my 5.4 with 3.31's, which is not all that often and you are all but climbing a mountain to ever hit second.

High gearing is great if you live where it is flat, but in the hills you are always hunting around trying to keep the engine it is power band. Around here 3.73's would be about the best to have in a truck.

A tuner will really wake them up too.

1997 Ford truck question

Anonymous-0

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Anonymous-0

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RobMD

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Kevin in OK

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Anonymous-0

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Anonymous-0

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02XLT4X4

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