A/C problems, 97 Altima

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zerocoo - 03 Jul 2004 00:33 GMT

Hey,

For the past 3 months, my a/c stops blowing cold air after couple of hours
of driving. It is especially worst in the afternoon, when its rather hot.
I have had the car check out 8-10 times by a Nissan dealership and also
by other mechanics and seems like no one has been able to find the
problem.

So far, they have re-charged the system with feon(?) gas, replaced the
thermal sensor, and checked for leaks. In narrowing down the trouble
spots, seems like the compressor might be dying after a while or is not
getting sufficient power from the engine.

Any ideas?

Thanks!

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TheAntMan - 07 Jul 2004 12:00 GMT

This just happend to me recently. I have a 1996 Nissan Altima 2.4 L GXE
Automatic. I would have the dealer or someone qualified look at the ECM
(Electronic Control Module) also called ECU (Electronic Control Unit),
Electronic Engine Control Module, "Fuel Computer", "Brain Box". This (ECM)
controls everything in your car and can fail. I had the same symptoms and
thought it was electrical because the compressor kept shutting off. I
thought I had a short somewhere in the wiring. The dealer checked
everything out with my A/C but found nothing wrong. They ran the
diagnostics machine(which costs me $200.00)on it and found out that is was
the ECM was not send the proper ground needs for the A/C. The ECM needs to
be replaced. The Dealer wants to charge $1026.00 for the part plus labor.
I called a local junk yard or parts place for a used ECM. I found the ECM
for $100.00 plus $60.00 labor to install it for me. I hope this helps you.
Good Luck!!!

PS - Check out http://www.car-part.com - This is where I found my part.
It will search all over the US or just your State.

Ant

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