2001 pontaic grand am cooling fans

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howsz
Posts: 1
Joined: Sun Jan 20, 2013 3:32 pm

2001 pontaic grand am cooling fans

Unread post by howsz » Sun Jan 20, 2013 3:43 pm

front raditor fans run all the times. pulling one of the two relays for fans out at the fuse box will stop one or both.
have replaced thermostat and the temp sensor right by it, because we had no heat in cabin, now we do and the gauge will go up to 200 degrees. also right now we do have a check engine light for evaportive canstier lsystem eak
any ideas ?

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ProTech
Posts: 657
Joined: Wed Oct 17, 2012 10:08 am

Re: 2001 pontaic grand am cooling fans

Unread post by ProTech » Sun Jan 20, 2013 8:31 pm

The fans will run all the time usually when there is a problem with the thermostat or temp sensor. It does this because the computer can't tell if the engine is running hot or not so it runs the fans just in case. Usually replacing one or both (t-stat or sensor) will correct this problem. If a code had set due to this problem, it needs to be cleared before everything will go back to normal. Usually this code is a P0128. If you do not currently have that code set as current or history, you're going to have start looking elsewhere for the problem keeping your fans on, such as a short in the wiring, or a computer issue.

As for the EVAP code, you don't mention which code it is, but the most common thing to go out is the canister vent solenoid. This is easily replaced, and is located behind the left rear wheel, up behind the wheelhouse trim. Of course, you should make sure that's the problem before replacing any parts.
GM Dealer Technician For 18+ Years
In the automotive industry for 20+

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