Temperature Gauge Problem
Thread Starter
Navigator
Joined: Feb 2006
Posts: 9
Likes: 0
From: Weatherford Oklahoma
Temperature Gauge Problem
Experiencing a gauge problem. When I start my 2004 Corvette, all gauges jump to the maximum, then drop to normal. This afternoon, my temperature gauge did this, then rose immediately to the 260 mark and stayed there. It does this every time I start the engine. I'm showing a P0116 10-PCM code when I check the codes, and the DIC is showing XXX for the coolant temperature. Any thoughts as to the problem? Oil temperature is normal (about 220 degrees today), and the engine is not overheating.
I don't know if this is related, but I first noticed this a few minutes after installing a new battery. The old one was fine, but going on 6 years, so I thought it was about time for a new one.
Can someone please help? I'm a bit panicky right now!
I don't know if this is related, but I first noticed this a few minutes after installing a new battery. The old one was fine, but going on 6 years, so I thought it was about time for a new one.
Can someone please help? I'm a bit panicky right now!
Cruising
Joined: Mar 2009
Posts: 11
Likes: 1
From: Womelsdorf PA
Hi there ricwb!
This will be of little help but, perhaps, we can help each other going forward.............I practically have an identical story with my 2004 Cp...................Right down to adding the new battery and being a bit panicky! I'm searching for an answer as I assume you are...........Whoever get's it first should let the other know please...............OK!?!?!?
Thanks,
Bob
This will be of little help but, perhaps, we can help each other going forward.............I practically have an identical story with my 2004 Cp...................Right down to adding the new battery and being a bit panicky! I'm searching for an answer as I assume you are...........Whoever get's it first should let the other know please...............OK!?!?!?
Thanks,
Bob
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
First thing that I would do is clear ALL the DTCs and see if that eliminates the issue.
Next, examine the temp sensor connector and make sure that all the wiring and the connector is in good shape. Make sure that the sensor its self is clean and in good shape.
You can also measure the sensor with an ohm meter to see if it is tracking properly with the increase in coolant temp.
The sensor is on the drivers side head under the alternator and forward of #1 sparkplug.
If all this fails,,replace the sensor.
BC
Next, examine the temp sensor connector and make sure that all the wiring and the connector is in good shape. Make sure that the sensor its self is clean and in good shape.
You can also measure the sensor with an ohm meter to see if it is tracking properly with the increase in coolant temp.
The sensor is on the drivers side head under the alternator and forward of #1 sparkplug.
If all this fails,,replace the sensor.
BC
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
You might not wish to drive it while that particular sensor is messing up on you. It controls a lot of things having to do with the fuel mixture and so on.
Cruising
Joined: Mar 2009
Posts: 11
Likes: 1
From: Womelsdorf PA
Bill C. above fixed me up! I did not drive the car very much at all after noticing the problem because I was so concerned about overheating............I was checking coolant, fans etc..........Thanks for the help!
Bob
Bob
Burning Brakes
Joined: Oct 2004
Posts: 792
Likes: 19
From: ME
had the same problem with my 99. I knew it was not overheating and the temp gauge started going up and down back to where I thought the coolant temp was, all the sudden like 2 minutes after start up. Checked the coolant temp sensor and found some coolant leaking out from the sensor itself, probably messing with the signal. replaced the sensor and had no problems for about a year, then just yesterday had the same problem again, then it stopped, no codes set. Drove it for about 1.5 hours after that with no issue. checked the connector again and looked ok. maybe an electrical ghost?
Let me know what you guys find. Hopefully my experience sheds light on the issue
steve
Let me know what you guys find. Hopefully my experience sheds light on the issue
steve
Former Vendor
Joined: Mar 2003
Posts: 18,666
Likes: 395
From: Tampa FL
St. Jude Donor '07-'08-'09-'10-'11-'12'-'13-'14-'15
First thing that I would do is clear ALL the DTCs and see if that eliminates the issue.
Next, examine the temp sensor connector and make sure that all the wiring and the connector is in good shape. Make sure that the sensor its self is clean and in good shape.
You can also measure the sensor with an ohm meter to see if it is tracking properly with the increase in coolant temp.
The sensor is on the drivers side head under the alternator and forward of #1 sparkplug.
If all this fails,,replace the sensor.
BC
Next, examine the temp sensor connector and make sure that all the wiring and the connector is in good shape. Make sure that the sensor its self is clean and in good shape.
You can also measure the sensor with an ohm meter to see if it is tracking properly with the increase in coolant temp.
The sensor is on the drivers side head under the alternator and forward of #1 sparkplug.
If all this fails,,replace the sensor.
BC
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Joined: Jan 2007
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From: Dyer, IN
Former Vendor
Joined: Mar 2003
Posts: 18,666
Likes: 395
From: Tampa FL
St. Jude Donor '07-'08-'09-'10-'11-'12'-'13-'14-'15
Yes they helped and I appreciate them. I will try the little trick about unplugging the sensor wire when it begins to act funny. I am a military man so like to have a plan A, B and C lined up when I go into battle. 
Thanks for your help.
Cajun
Thanks for your help.Cajun
Tech Contributor
Joined: Jan 2007
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From: Dyer, IN
