Need Help! Car overheating ...
Thread Starter
Racer
Joined: Jul 2001
Posts: 386
Likes: 0
From: Round Rock, Texas, USA
Need Help! Car overheating ...
My coolant temp shot up to 260* this morning. This was after about 22 miles of highway driving. I pulled into a parking lot. I did not see any leaking fluid anywhere. The reservoir has coolant in it (full at a hot temp). I let the car idle for a few minutes and the temp drops like a rock to 220* and stays there (oil temp is around 217). If I try to drive it at all, the temp shoots straight back up.
I did race the car the last Saturday some NA and nitrous runs (ran some 10.90's @ 135). I did drive home (after racing) 40+ miles with no problems.
The car is not misfiring, no leaking fluid, the fans are on, ... What else do I need to look for?
Is my thermostat stuck? Water pump?
Thanks.
I did race the car the last Saturday some NA and nitrous runs (ran some 10.90's @ 135). I did drive home (after racing) 40+ miles with no problems.
The car is not misfiring, no leaking fluid, the fans are on, ... What else do I need to look for?
Is my thermostat stuck? Water pump?
Thanks.
Team Owner
Joined: Mar 1999
Posts: 28,753
Likes: 9
From: San Jose/Bear Valley CA
CA Events Coordinator
Re: Need Help! Car overheating ... (TXNC5)
Is the coolant circulating? If not your pump may be bad... do you have a large plastic bag stuck in front of your radiator? That can cause those problems too... A bad radiator cap (on the tank) will allow high temps too... my bet is that you have a plastic bag in front of the rad....
vetterdstr :cheers:
vetterdstr :cheers:
Thread Starter
Racer
Joined: Jul 2001
Posts: 386
Likes: 0
From: Round Rock, Texas, USA
Re: Need Help! Car overheating ... (TXNC5)
Thanks for the replies. I will go and inspect for debris as I did not do that. I will give an update (or ask for more advice).
Thanks.
Thanks.
Racer
Joined: Jan 2003
Posts: 493
Likes: 1
From: Goose Creek SC
Re: Need Help! Car overheating ... (angel95135)
When I had overheating problems I saw one of the fans turning slower than the other. I found a plastic Piggly Wiggly shopping bag wrapped around the fan moter. The C5 underhood is like a moving vacuum cleaner.
Thread Starter
Racer
Joined: Jul 2001
Posts: 386
Likes: 0
From: Round Rock, Texas, USA
Re: Need Help! Car overheating ... (TXNC5)
Well, I had it towed to a shop. The guy said he tested the coolant for hydro-carbons, and that the test was positive? So, that means I have an internal problem like a blown head gasket.
Do I have room to pull my heads with the motor in the car if I have head studs? The motor was out when the heads were put on.
Thanks.
Do I have room to pull my heads with the motor in the car if I have head studs? The motor was out when the heads were put on.
Thanks.
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Team Owner
Joined: Mar 1999
Posts: 28,753
Likes: 9
From: San Jose/Bear Valley CA
CA Events Coordinator
Re: Need Help! Car overheating ... (TXNC5)
The engine stays in the car when the heads come off... no need to worry about extra cost there... I hope whatever is wrong with your car it is fixed very soon. :smash:
vetterdstr :cheers:
vetterdstr :cheers: