Check engine light question.
Thread Starter
Instructor
Joined: Jul 2022
Posts: 229
Likes: 84
From: FL
Check engine light question.
Car has basically been sitting for 3 days. We drive it to our new house and left it in the driveway for movers. That night we pulled it in the garage and it’s been sitting two days. I just went to pull it out in the drive way and immediately had a check engine light and the side intake fans were running I’m assuming full speed. I’ve never even heard them before really but this time sounded like a vacuum and could feel the air pull if I placed my hand in front of them. I checked all fluids and temps and drove it around the block and it seems to be running ok. The oil pressure seemed lower than I’ve ever seen it though at times in the mid to high 20s.
Just looking for help with next course of action. It’s going to the dealer soon anyway for other warranty work. Just curious if I can drive it to them or if I need a tow.
Thanks. Oh 2022 with barley 1k miles on it by the way.
Just looking for help with next course of action. It’s going to the dealer soon anyway for other warranty work. Just curious if I can drive it to them or if I need a tow.
Thanks. Oh 2022 with barley 1k miles on it by the way.
Race Director
Joined: Sep 2016
Posts: 13,180
Likes: 10,522
Do you have OnStar? If so, you can press the button and ask them if any codes have been recorded. Many auto parts stores will let you check out a code reader that you can plug into the ODB port to check for codes. But I wouldn't drive it with the fans running all the time until you figure out what it is. If it has to go to the dealer, call them and arrange a flatbed tow truck.
Pro
Joined: Jun 2021
Posts: 550
Likes: 352
From: Maryland
I noticed my side vent fans running one day after coming back from a normal back roads drive. Never noticed a CEL but there's so much stuff on that display I might have missed it. Never happened again. Anyone know what turns them on?
Safety Car
Joined: Jul 2013
Posts: 4,408
Likes: 3,485
From: Granada Hills CA
I would imagine that they are thermostat or software controlled. Sometimes when I would go out to the garage I would hear the afterblow feature operating on my C6. Normal operating procedure
Thread Starter
Instructor
Joined: Jul 2022
Posts: 229
Likes: 84
From: FL
I googled a little after my post and there are quite a few things that can cause them to run at full speed. When I started the car back up to pull it into the garage I still had the CEL but the fans were operating normally. I’m hoping what ever was messed up is ok now but the CEL just needs to be cleared.
Safety Car
Joined: Jul 2013
Posts: 4,408
Likes: 3,485
From: Granada Hills CA
I googled a little after my post and there are quite a few things that can cause them to run at full speed. When I started the car back up to pull it into the garage I still had the CEL but the fans were operating normally. I’m hoping what ever was messed up is ok now but the CEL just needs to be cleared.
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Melting Slicks
Joined: Aug 2018
Posts: 2,781
Likes: 3,104
The fans on my C8 run for a few minutes every time I pull it into my garage. I think it has a lot to do with the road that leads to my house. It’s all up hill and wide open so I usually get her up past the C note for a few miles. When possible I will let her idle for a few minutes to cool down but most times the fans run.
I have never had my check engine light come on but that doesn’t stop me from opening the trunk and checking the engine every now and them.
I have never had my check engine light come on but that doesn’t stop me from opening the trunk and checking the engine every now and them.
Thread Starter
Instructor
Joined: Jul 2022
Posts: 229
Likes: 84
From: FL
I had to pull it out of the garage again today for some more organizing and unpacking. CEL still on but fans are back to operating normally for a cold car.
Thanks for all the feedback, suggestions, and help. I will keep everyone updated.
Thread Starter
Instructor
Joined: Jul 2022
Posts: 229
Likes: 84
From: FL
Still no chance to visit the dealer hopefully this upcoming week. As feared pulling the car out of the garage another time since my last post resulted in the light being gone. Not that I wanted a problem, was just curious of the reason for the code to begin with.
Until next time!
Until next time!
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,937
Likes: 12,349
From: NE South Carolina
The fans on my C8 run for a few minutes every time I pull it into my garage. I think it has a lot to do with the road that leads to my house. It’s all up hill and wide open so I usually get her up past the C note for a few miles. When possible I will let her idle for a few minutes to cool down but most times the fans run.
I have never had my check engine light come on but that doesn’t stop me from opening the trunk and checking the engine every now and them.
I have never had my check engine light come on but that doesn’t stop me from opening the trunk and checking the engine every now and them.
Nothing obvious in the coolant, trans or engine oil temp, which I have displayed on the left of the dash. All around 180 F even on hot days.
Last edited by JerryU; Sep 9, 2022 at 03:25 PM.