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Hot Engine! CEL

Old Dec 29, 2008 | 06:33 PM
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Default Hot Engine! CEL

I was driving the car @60 MPH when I saw this message on the DIC "Hot Engine - Turn Off Condition" then the check engine light pops.
The A\C was already off and the car wasn't hot at all! 65 C!
I parked and double checked the radiator water.. FULL. then I disconnected the battery for 5 minutes and re-connect everything again. started the car.. everything is OK, drove it around for like half an hour then parked it and went home.
Two hours later I drove the Vette to the supermarket everything looks fine and suddenly the check engine light appears again with the message above!
Any one know how to fix it? any one had something similar? I'm kinda super freaked out now!! the battery is disconnected currently I was hoping to connect it back tomorrow.
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Old Dec 29, 2008 | 06:55 PM
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Originally Posted by LS2-Zomb!e
I was driving the car @60 MPH when I saw this message on the DIC "Hot Engine - Turn Off Condition" then the check engine light pops.
The A\C was already off and the car wasn't hot at all! 65 C!
I parked and double checked the radiator water.. FULL. then I disconnected the battery for 5 minutes and re-connect everything again. started the car.. everything is OK, drove it around for like half an hour then parked it and went home.
Two hours later I drove the Vette to the supermarket everything looks fine and suddenly the check engine light appears again with the message above!
Any one know how to fix it? any one had something similar? I'm kinda super freaked out now!! the battery is disconnected currently I was hoping to connect it back tomorrow.
Did you get a tune or add a different t-stat? Sometimes a lower temp t-stat runs the engine too cold. If you have the stock t-stat perhaps a sensor issue or the t-stat is stuck open. Just a guess
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Old Dec 29, 2008 | 06:57 PM
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If you changed the thermostat, there could be air in the system.
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Old Dec 29, 2008 | 06:58 PM
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Originally Posted by Silver05GTO
Did you get a tune or add a different t-stat? Sometimes a lower temp t-stat runs the engine too cold. If you have the stock t-stat perhaps a sensor issue or the t-stat is stuck open. Just a guess
No. No new tune and no new T-Stat.
Car was fine and smooth yesterday, I don't know what's the issue!
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Old Dec 29, 2008 | 06:59 PM
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Originally Posted by timd38
If you changed the thermostat, there could be air in the system.
You're right but I didn't!
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Old Dec 29, 2008 | 07:25 PM
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sounds like a temp sensor failure... what year model car? sorry I don't remember...
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Old Dec 29, 2008 | 08:03 PM
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I've seen this issue a couple of times on the forum. Do a search.....
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Old Dec 29, 2008 | 08:27 PM
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if you dont have any test equiptment ,take it to someone that does.what does disconnecting the batt. fix ?
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Old Dec 29, 2008 | 08:32 PM
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My 07 did the same , but with the error message the water temp gauge would die - Dropped to zero with no reading , but I knew the car wasnt running hot . Happened a few times , and when I went to bring it in , it never happened again . Its just a bad sensor somewhere .
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Old Dec 29, 2008 | 08:45 PM
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Originally Posted by Mr.Big
sounds like a temp sensor failure... what year model car? sorry I don't remember...
Hey J,
2006 How much is that sensor Jeremy? location?
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Old Dec 29, 2008 | 08:46 PM
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Originally Posted by BrooklynC6
My 07 did the same , but with the error message the water temp gauge would die - Dropped to zero with no reading , but I knew the car wasnt running hot . Happened a few times , and when I went to bring it in , it never happened again . Its just a bad sensor somewhere .
Any tips for me?
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Old Dec 29, 2008 | 08:46 PM
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Originally Posted by patton
if you dont have any test equiptment ,take it to someone that does.what does disconnecting the batt. fix ?
It didn't fix it.. yet!
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Old Dec 29, 2008 | 08:51 PM
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Originally Posted by LS2-Zomb!e
Any tips for me?
Was your temperature gauge working ? What temp was it showing ? On my car , the gauge on the dash would read nothing ( zero ) and the HUD would display "XXX" . Try to check the connection for the gauge , if I recall its above the #1 cylinder .

Like I said , my car "fixed" itself , so I never took it further than checking conections .

If you're nervous driving it like that , leave the DIC on oil temp .... as long as the oil temp is OK , 95% you are not overheating , so no worries ( although it wont let you turn on the A/C compressor )

Good luck
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Old Dec 29, 2008 | 08:55 PM
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Originally Posted by BrooklynC6
Was your temperature gauge working ? What temp was it showing ? On my car , the gauge on the dash would read nothing ( zero ) and the HUD would display "XXX" . Try to check the connection for the gauge , if I recall its above the #1 cylinder .

Like I said , my car "fixed" itself , so I never took it further than checking conections .

If you're nervous driving it like that , leave the DIC on oil temp .... as long as the oil temp is OK , 95% you are not overheating , so no worries ( although it wont let you turn on the A/C compressor )

Good luck
Yeah it shows "XXX" OK.. where is cylinder #1? LOL! sorry I don't work on my engine at all!
Have a pic or something?
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Old Dec 29, 2008 | 08:57 PM
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I almost forgot.. 2 days before this happen the DIC was showing "Check Coolant" when I turn the car on then it disappear by it self..
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Old Dec 29, 2008 | 09:09 PM
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Originally Posted by LS2-Zomb!e
Yeah it shows "XXX" OK.. where is cylinder #1? LOL! sorry I don't work on my engine at all!
Have a pic or something?
On the drivers side , first one closest to the front ..... its hard for me to describe as I dont really remember .....

Wish I had more info for you , all I can tell you is that it wont hurt the car .

Good luck man
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Old Dec 29, 2008 | 09:11 PM
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Originally Posted by BrooklynC6
On the drivers side , first one closest to the front ..... its hard for me to describe as I dont really remember .....

Wish I had more info for you , all I can tell you is that it wont hurt the car .

Good luck man
Thanks a lot buddy, I really appreciate it!
I know it wont hurt the car at all, totally agree with you.. but it's kinda annoying when you have a CEL over and over again!
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