99 gp gt overheats when idleing
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Posts like a V-Tak
Joined: Nov 2011
Posts: 37
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From: sacramento california usa

ever since i bought the car ive noticed that it gets really hot while idleing, wether im sitting it at a stop sign or parked during idle. i just basically sit there and watch the temperature dlslowly rise on up. i also have been hearing about people upgrading there stock thermostat to the 180° .
180 will actually make your car run poorly, if not tuned for it. if the thermo was stuck closed it would overheat rapidly, if it was stuck open it wouldnt get very hot. usually when i see your issue, as long as the fans are working, its the rad fins and or condenser fins clogged with crap. i usually take the fans out spray with simple green and back flush it with the hose a couple times.
Stock fan settings are 216F low speed and 228F high speed turn on. If you aren't getting over those temps..then your fans shouldn't be on.
If you turn on the AC, your fans should come on. This is a way to test that the computer can command the fans on w/o having to bring the car up to temp.
If you turn on the AC, your fans should come on. This is a way to test that the computer can command the fans on w/o having to bring the car up to temp.
Thread Starter
Member
Posts like a V-Tak
Joined: Nov 2011
Posts: 37
Likes: 0
From: sacramento california usa

Stock fan settings are 216F low speed and 228F high speed turn on. If you aren't getting over those temps..then your fans shouldn't be on.
If you turn on the AC, your fans should come on. This is a way to test that the computer can command the fans on w/o having to bring the car up to temp.
If you turn on the AC, your fans should come on. This is a way to test that the computer can command the fans on w/o having to bring the car up to temp.
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Joined: Sep 2006
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From: Windsor, Ontario / Detroit, Michigan









A bad t-stat gasket can cause your car to overheat in one of two ways. It could cause sufficient coolant loss to cause a problem, and it could introduce air to the coolant system.
Check the coolant level in the recovery tank, and adjust as required.
Bleed the system using the bleeder screw on top of the t-stat housing until no more air comes out.
Fix the t-stat gasket. Its easy and inexpensive to do.
After all that, if it still overheats, let us know.
Check the coolant level in the recovery tank, and adjust as required.
Bleed the system using the bleeder screw on top of the t-stat housing until no more air comes out.
Fix the t-stat gasket. Its easy and inexpensive to do.
After all that, if it still overheats, let us know.
Thread Starter
Member
Posts like a V-Tak
Joined: Nov 2011
Posts: 37
Likes: 0
From: sacramento california usa

A bad t-stat gasket can cause your car to overheat in one of two ways. It could cause sufficient coolant loss to cause a problem, and it could introduce air to the coolant system.
Check the coolant level in the recovery tank, and adjust as required.
Bleed the system using the bleeder screw on top of the t-stat housing until no more air comes out.
Fix the t-stat gasket. Its easy and inexpensive to do.
After all that, if it still overheats, let us know.
Check the coolant level in the recovery tank, and adjust as required.
Bleed the system using the bleeder screw on top of the t-stat housing until no more air comes out.
Fix the t-stat gasket. Its easy and inexpensive to do.
After all that, if it still overheats, let us know.



