Possible water pump failure

[that_nasty_SHO10]

Hello everyone, coming on here to see if anyone else would know what is going on with my car... My car has been overheating while at idle and or low speeds. I have checked my oil and coolant and both are fine. When I put my car and park and rev it up a little bit, the temp gauge goes down a little and spikes back up. Is this meaning it's getting poor circulation? Also my fans do work when I turn my A/C on so it's not my fans either.

 

[shaw]

Hello everyone, coming on here to see if anyone else would know what is going on with my car... My car has been overheating while at idle and or low speeds. I have checked my oil and coolant and both are fine. When I put my car and park and rev it up a little bit, the temp gauge goes down a little and spikes back up. Is this meaning it's getting poor circulation? Also my fans do work when I turn my A/C on so it's not my fans either.

Sounds like you may have a circulation issue more than an electrical fan problem. If the temp drops a bit when you rev it, that usually points toward weak coolant flow at idle. I’d start looking at the thermostat, possible air trapped in the system, or even a water pump that isn’t moving enough coolant at low RPM. A partially clogged radiator can do it too. Since the fans kick on with the A/C, at least you know they’re capable of working. I’d also make sure both radiator hoses are getting hot and check whether the coolant level stays full after a complete cool down.