Engine overheating

2005 CHEVROLET IMPALA

233,428 MILES

CHRIS INMYZONE COLLINS

MEMBER
3 POSTS

I think it might be my water pump not circulating. when I drive the temperature goes up to the red. I have changed the transmission filter and fluid and also the thermostat. I will pull over and see stream coming from what looks to be the water pump, which if I am correct sits on top to the left of the engine turned by belts. Heat will not get hot either. Could this be my problem?

Mar 3, 2017 at 4:07 AM

STEVE W.

✓Experienced Mechanic
15,394 POSTS

Do the cooling fans come on when it gets hot? When you check the coolant level is it full? How long does it take to get hot? When it gets warm are both of the radiator hoses also hot?

I would start with a pressure test and looking for leaks. If it holds pressure (may not if the pump is bad) Then change the pump, and pressure test again. You need to make sure it was "only" a bad pump.

Do not keep driving it, you can very easily destroy the engine by overheating it (if it is not already)

Jan 31, 2019 at 10:39 AM

CHRIS INMYZONE COLLINS

MEMBER
3 POSTS

Changed the pump no longer overheating but still a hesitant to catch gear, hat lights on within a minute or two check engine went off yesterday after replacing pump but came back on today.

Jan 31, 2019 at 10:39 AM

STEVE W.

✓Experienced Mechanic
15,394 POSTS

High temperature could have messed up a sensor. Or it could be unrelated. Most parts stores will scan them for engine codes. If you are having a transmission issue they usually will not scan the transmission.

Jan 31, 2019 at 10:39 AM

CHRIS INMYZONE COLLINS