ac blows warm at stops... cold at highway speed

laack

Well-known member
Joined
Jun 22, 2012
Location
ann arbor
TDI
03 jetta
2005 bew engine.

I've been trying to figure out some issues with an occasional engine idle surge. I had thought that i was low in r134 causing the compressor clutch to kick on and off... I had the system evac/recharged over the weekend by a shop.

They said that the fan is only running at slow speed. I have since verified that both fans run with the engine off and ac switch on.

I have no idea how to test fast speed.

frequent searches tend to result in slow speed not working, but i have not found a basic how to with pictures or detailed instructions to check the highspeed function of the fan.

help me please!
 
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