Z06 fixed it self??
Thread Starter
Instructor
Joined: Dec 2007
Posts: 246
Likes: 2
From: colonia New jeresy
Z06 fixed it self??
hi last night I took the Corvette out for a ride and all of a sudden the engine cooling fan was on high speed no AC no temperature reading on the cool gauge. and the fans would not shut off after I turned the car off so I had to unhook the battery the next morning I go out in the garage to take a better look at the car hooked the battery back up and all is good what do you guys think, thanks
Last edited by 377; Oct 21, 2023 at 08:59 AM.
Melting Slicks
Joined: Feb 2018
Posts: 2,177
Likes: 1,044
From: North Texas
Lay your hands upon the hood.
Looking up to the heavens and yell 'HEAL'
Everythings now fixed!
Its MAGIC!!!!
Really its probably just the fan controller that needs to be replaced.
Looking up to the heavens and yell 'HEAL'
Everythings now fixed!
Its MAGIC!!!!
Really its probably just the fan controller that needs to be replaced.
Last edited by Tinkertech; Oct 22, 2023 at 08:49 AM.
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,600
Likes: 4,060
From: Cape Coral, Florida
Your profile says your an auto mechanic so it should be easy for you to diagnose…with your scan tool in Global OBD2 and not Enhanced (substituted values) see what your ECT reads…if you have a shorted sensor or the 5 volt reference is shorted to ground the ECT will max out…when that happens the fan will run.
Last edited by C5 Diag; Oct 21, 2023 at 10:35 AM.
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From: So. Cal.
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You have a lazy thermostat. You clear it when you unhook the battery. It will come back.
Melting Slicks
Joined: Feb 2018
Posts: 2,177
Likes: 1,044
From: North Texas
I reread your post.
Since the temp gauge was bottomed out at 0 then I would expect that the fan controller is OK.
If the thermostat was stuck open the car would be running cool.
If the thermostat was stuck closed then the car would be running hot.
Each situation would have given you an indication of the temp on your gauge. It should not have read 0.
I'd check the coolant temp sensor and wiring.
Since the temp gauge was bottomed out at 0 then I would expect that the fan controller is OK.
If the thermostat was stuck open the car would be running cool.
If the thermostat was stuck closed then the car would be running hot.
Each situation would have given you an indication of the temp on your gauge. It should not have read 0.
I'd check the coolant temp sensor and wiring.
Racer
Joined: Aug 2015
Posts: 285
Likes: 66
From: Marshall Il
I reread your post.
Since the temp gauge was bottomed out at 0 then I would expect that the fan controller is OK.
If the thermostat was stuck open the car would be running cool.
If the thermostat was stuck closed then the car would be running hot.
Each situation would have given you an indication of the temp on your gauge. It should not have read 0.
I'd check the coolant temp sensor and wiring.
Since the temp gauge was bottomed out at 0 then I would expect that the fan controller is OK.
If the thermostat was stuck open the car would be running cool.
If the thermostat was stuck closed then the car would be running hot.
Each situation would have given you an indication of the temp on your gauge. It should not have read 0.
I'd check the coolant temp sensor and wiring.
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