- Idle air valve problem
- Posted by Mr Jones
Ok, so here's the problem; My IAV doesn't compensate for load when I turn on
the A/C. It just goes from 840rpm down to 640 and stays there. Same thing
with the A/T. Put it in drive and it drops to 640 and stays there. I cleaned
the valve, also quick checked it by pulling off the coolant temp sensor
harness and the engine indeed surged and returned to normal. I'm trying to
determine where the communication breakdown is, but I thought I'd ask the
general question to see if anyone had any experience with this exact
problem. Thanks
The car is a 95 Jetta
Tim
- Posted by Philip®
Mr Jones wrote:
Not all IAC systems compensate for A/C drag. I had a 1990 Prizm with
an IAC duty solenoid AND it had a manually adjustable "idle up" air
bleed that opened with the engagement of the A/C compressor. Maybe
you have similar?
--
~~Philip
"Never let school interfere
with your education - Mark Twain"
- Posted by David
You have a problem with the SEPARATE A/C idle speed compensator.
Not done with the IAV on that car.
Note any vacuum leak or bad PCV valve can mess up the operation of that
system.
Philip® <chipstate@earthlink.net> wrote in message
news:1355b.6674$Lk5.4719@newsread3.news.pas.earthl ink.net...
