Anyone out there have any experience with this?
Coolant fans will not run and engine will eventually overheat if left
idling. If A/C is turned on, both fans will run at low speed.
I bought one new relay and sequentially put in place of each of the 3
original fan relays but it makes no difference. I did note that several
times after removing the relays, the "check engine soon" lamp came on (the
only time it ever did), and for just around 20 seconds, the fans ran at
I can jump around the relays and make the fans run and just for
thoroughness, all fuses in the underhood fuse/relay box are good.
At this point, it's all I can think of that would easily fix this problem.
Oh yeah, I did replace the engine coolant temp sensor mounted in the
water pump -- again no difference.
So the question is, are there other easy/obvious things I'm missing, and
if not, what are the "hard" things to examine? It's hard to imagine the
PCM being at fault since everything else works properly and the car runs
fine. I know that the PCM knows the coolant temperature because the car
runs well cool or warm and the skip shift lamp comes on properly (only
with a warm engine).
I figure you folks are the best hope I have at this point. Any help is