03 zo6 overheating
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Joined: Apr 2006
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03 zo6 overheating
ok this is what happened.
i had beem driving the car for about 30min on city streets no higher than 30 mph
when my check gauges light came on i noticed the temp gauge was peged. i pulled over and opened the hood checked the coolient level it was fine ( not boiling over) checked the fans they were drawing cool air. checked the analog gauge campared to the digital one and seemed to be reading the same temp. let the car set for awhile and then started it again and the within 1min it peged again.
my question is where do i start.
I dont think car was overheating
thanx for the help
i had beem driving the car for about 30min on city streets no higher than 30 mph
when my check gauges light came on i noticed the temp gauge was peged. i pulled over and opened the hood checked the coolient level it was fine ( not boiling over) checked the fans they were drawing cool air. checked the analog gauge campared to the digital one and seemed to be reading the same temp. let the car set for awhile and then started it again and the within 1min it peged again.
my question is where do i start.
I dont think car was overheating
thanx for the help
Pro
Joined: May 2008
Posts: 596
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From: Houston Texas
for what you're describing (doesn't seem to overheat visually) I'd get the long stem thermometer and stick it between the radiator blades when the gauge is pegged-than compare the readings.Maybe you temp sensor is bad...Now,if it IS overheating I'd change the t-stat first...
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St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
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St. Jude Donor '04
I had a friend with this exact same problem, we changed the temp sensor and it didn't fix the problem so I looked in the service manual and the troubleshooting led us to a bad instrument cluster which he decided not to replace.
If you look at the wiring diagram the temp sensor sends it's signal directly to the PCM and then the PCM sends this info to the IPC which displays it both on the DIC as well as the analog gauge.
If you look at the wiring diagram the temp sensor sends it's signal directly to the PCM and then the PCM sends this info to the IPC which displays it both on the DIC as well as the analog gauge.
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St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
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From: Van Buren Arkansas
Wounded Warrior Escort '11
FYI, the engine coolant sensor also controls a lot of the fuel mixture therefore there could be lots of issues if its bad. If the sensor is reading to the pcm correctly and its just not reporting correctly.. not so bad. As suggested, use an IR gun to find out and take it from there. If it is starting to overheat, are the fans running? Have you cleaned out the debris from the front of the condensory and specifically the small rocks?
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Wounded Warrior Escort '11
If you aren't running the HVAC system, the fans will cycle on and off based upon the engine temperature...again, the 225-235 range for low to high speed operation. So, sitting there at idle, HVAC/fans are off, it will heat up of course till the fans kick on and cool it back down. Now if the temp is blasting all the way up or staying up, then the coolant temp sensor needs to be looked at especially if the engine doesn't feel that hot to you. Again the only way to know is to measure it. IR gun makes it easy and they are cheap.
Le Mans Master
Joined: Feb 2003
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From: Memphis Tennessee
ok this is what happened.
i had beem driving the car for about 30min on city streets no higher than 30 mph
when my check gauges light came on i noticed the temp gauge was peged. i pulled over and opened the hood checked the coolient level it was fine ( not boiling over) checked the fans they were drawing cool air. checked the analog gauge campared to the digital one and seemed to be reading the same temp. let the car set for awhile and then started it again and the within 1min it peged again.
my question is where do i start.
I dont think car was overheating
thanx for the help
i had beem driving the car for about 30min on city streets no higher than 30 mph
when my check gauges light came on i noticed the temp gauge was peged. i pulled over and opened the hood checked the coolient level it was fine ( not boiling over) checked the fans they were drawing cool air. checked the analog gauge campared to the digital one and seemed to be reading the same temp. let the car set for awhile and then started it again and the within 1min it peged again.
my question is where do i start.
I dont think car was overheating
thanx for the help
By the way, I bought mine a Harbor Freight for about $25.
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St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
