(800) 853-2651
SHOP NOW

O.T. Car a/c

A

alg

Member
Guys,
Is there any way to test a evaporator coil for leaks without pulling the dash out. There is dye in the system ,but can't get to the coil to check.System will only hold a charge for a couple of hours.I can get to the heater core,but the evap. sits above that and is not visible.Any way to run apressure test on it.It's a 99 Ford Contour.
 
With a leak that serious, an electronic checker should squeel radically in the outlet vent! (or where ever it is leaking) Jim
 
Poke a sniffer down thru one of the ducts to see if you"re getting freon inside the car, as the evaporator is the only componet which lives "inside".

Allan
 
Yes you would need to disconect it from the rest of the system make up some fittings and presure test, however sometimes they will leak at differing temps as they expand or contract so for instance it leaks when its cold not at ambiant so can be hard to find a leak , I would double check the rest of the system and if 99% sure its ok then pull the evap !!!!
 
You might be able to detect the dye from the water that dripps out the bottem off the car. With a leak that bad, if it was the evaporator, I would imagine the dye would be all over inside the evaporator housing and possibly some would be carried a way by the water that condenses on the evap. Otherwise, check every thing else again before you pull the evap.

Jared
 
Electronic sniffer should show the general area, but like the other day, I pinched an o-ring on a receiver drier on a Honda and my sniffer read leaks almost everywhere under the hood. Squealed like a banji. Problem with evap leaks is it might just be a connector and you can't pinpoint it.
 
Yup, fill her with nitrogen and listen. I've used ultra-sonics to find leaks. With a good tester, i could hear your fingers rubbing together at 10 ft away.
 
I would hazard a guess that it is leaking at one of the fittings where one of the hoses or other components connect.
 
Don't overlook the Schrader valve where you fill/test pressures on the system. My company car (driver ed) had a leak there - said they needed to replace the valve. Donno if it's the same as a tire valve, but they had to order one.
 
You must log in or register to reply here.

Similar threads

S
OT Automotive Question
Replies
16
Views
973
Pat80flh
P
zuhnc
6V, 3 Brush generator no output
Replies
4
Views
286
zuhnc
zuhnc
L
Battery Cable sizing... placing a bet
Replies
17
Views
1K
HFJ
H
Slow lane 49
Couldn't say no to a 350 Utility
Replies
18
Views
1K
Slow lane 49
Slow lane 49
J
Faulty compression tester and testing a 60 for compressi
Replies
6
Views
548
Loosehandle
Loosehandle
Tractor Parts Tractor Manuals

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Copyright © 1997-2024 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy

Back
Top