elizabethhuber10

Camaro Overheating Check Engine Light

My 2018 Chevrolet Camaro with a gasoline engine is having a strange issue. It's got about 151151 km on it. Recently, the check engine light came on, and I've noticed the engine overheating. Coolant is spilling under the car, which seems related to excessive pressure in the cooling system. A basic OBD scan points to a control unit communication error. I've checked the coolant level and visually inspected for obvious leaks, but nothing stands out. Any ideas where to start looking? Could it be a software glitch or some kind of wiring issue? I'm not super experienced with car diagnostics, so any advice is appreciated.

A 2018 Chevrolet Camaro is experiencing overheating and a check engine light, with coolant spilling due to excessive pressure in the cooling system. An OBD scan indicates a control unit communication error, suggesting potential issues with the CAN bus connections or faulty wiring. The recommended solution is to inspect visible connections and, if unresolved, seek professional assistance to diagnose and fix possible wiring faults.

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4 comment(s)

I had a similar problem with my Camaro, though I didn't have the coolant leak. The check engine light and overheating were definitely symptoms I experienced. The error code I got also mentioned something about a communication fault. Have you checked the CAN bus connections? I also wonder about the cable or plug connections.

Thanks for the quick reply! When you mention CAN bus connections, are there specific points I should be focusing on? I've heard of the CAN bus but don't have much experience working with it directly. And regarding cables and plugs - are there any common culprits with these cars?

I would check all the connections you can easily see. Then, if that brings nothing, sadly, the best thing to do is take it to a workshop. In my case, the fault was indeed traced back to faulty wiring and took them a day to find and fix it. It might save you some time and potential headaches.

Thanks for the advice! Based on what you and the workshop both said, it seems like a defective cable or plug connection of the component was the issue. Cost me 95€, all in. Appreciate the help!

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CHEVROLET

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CAMARO