Automotive Air Conditioning Information Forum (Archives)

Provided by

We've updated our forums!
Click here to visit the new forum

Archive Home

Search Auto AC Forum Archives

Need some info on an Expedition.

VegasGMC on Sat June 14, 2008 12:25 PM User is offline

Year: 1998
Make: Ford
Model: Expedition
Engine Size: 4.6
Refrigerant Type: R134
Ambient Temp: 100
Country of Origin: United States

Could someone give me the normal pressures for a '98 Expedition .? I was test driving it to check an ignition problem and vent temps never got very cold. Seemed to be in the 50's. Are there any common failure points for this system? It has 140k miles. Thanks

Chick on Sat June 14, 2008 6:16 PM User is offlineView users profile

The only way to test it properly is to evac/recharge to system specs. Not sure, but they use an engine driven fan, with electric? if so, I would suspect the fan clutch..Pressures can range around 2.2 to 2.5 times ambient on the high side, but that is a guide for checking properly charged vehicles and retrofits.. When you have a large vehicle, you really can't go by pressures, you can overcharge it quite a bit before high rises to much,.,.Check air flow over the condenser, clean the condenser and area between it and the radiator, and the best bet is to recover/recharge, then check for any problems..

Email: Chick


Freedoms just another word for nothing left to lose

Back to Automotive Air Conditioning Forum

We've updated our forums!
Click here to visit the new forum

Archive Home

Copyright © 2016 Arizona Mobile Air Inc.