Im not really well up on car repair knowledge, but since Ive now taken this car in and mentioned the problem without seemingly any problem being found - Im just trying to see if someone can give me any hint of what I should be looking in to!
For months now, my 99 Grand Am,just over 100k, has been flashing “low coolant” light and chiming - only when stopped at red lights (idling), and then as soon as I put my foot back on the accelerator it stops and turns off. This doesnt happen at every red light, or everytime I drive the car - but often enough that its concerned me. At first I immediately checked the coolant & took it to be checked for a leak…apparently everything looked fine and it wasnt low on coolant. The second time (took in for tune up) I mentioned it again and they claim nothing is wrong but said they cleaned/checked electric connectors in case it was due to faulty misfiring. Seemed okay for awhile, but now light has been flashing again. Im also not sure if its related, but Ive been noticing a tendency for the car to sometimes idle very rough as well. At one red light the car starting rocking/jerking - only to stop once I started driving again. Other than these problems when idling, the car runs like a dream. Anyone have any advice for where to look for this problem or what I should be watching for?