Overheating at Idle?
Thread Starter
Junior Member
Joined: Mar 2007
Posts: 18
Likes: 0
Overheating at Idle?
I have a 89 iroc-z with a 350 and it keeps overheating at idle. It'll run around town fine, and stopping at traffic lights isn't a problem, but if I'm sitting at idle for more than 5 minutes or so it steadily keeps heating up. Both the fans are still working, what else could it be?
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
How hot does it get? The fans don't come on until around 235 degrees +, depending upon switch and/or programing.
Member
Joined: Nov 2003
Posts: 299
Likes: 0
From: The Netherlands
Car: Cobra Kit Car
Engine: 350 HSR
Transmission: TKO 600
Axle/Gears: 3.31
Re: Overheating at Idle?
The Heavy Duty fan switch can be changed for a lower one of GM
It will come ON at 95° C = 203° F the part number is GM # 3053190
The EPROM can be changed easily if you have access to the programing tools.
That will reduce the temp of the Main FAN.
Regards,
Cobra289
It will come ON at 95° C = 203° F the part number is GM # 3053190
The EPROM can be changed easily if you have access to the programing tools.
That will reduce the temp of the Main FAN.
Regards,
Cobra289
Thread
Thread Starter
Forum
Replies
Last Post
