ENGINE KEEPS OVERHEATING

2003 Chevrolet Malibu

Tiny

saturntech9

January, 23, 2013 AT 1:16 AM

Did you torque the head bolts the correct torque and torque pattern?

Tiny

pmannin

January, 23, 2013 AT 3:57 AM

Yes I did 44 ft lbs and a second time at 95 degrees.

Tiny

saturntech9

January, 23, 2013 AT 4:18 AM

There is no bleeding procedure for this car let's try this remove the thermostat and let's see if it still overheats?I had a grand am with a quad four engine put in a brand new thermostat in it. The engine was overheating only one radiator was getting hot and the radiator fan was blowing cold air from the radiator. Removed the thermostat and it didn't overheat hot air out of the radiator and both hose got hot. Put in another thermostat and it worked.

Tiny

pmannin

January, 23, 2013 AT 7:47 AM

Ok will do. I called autozone today amd they said something about getting air out of my lines by rumning the car with the radiator cap off. Is that true. I will keep u posted.

Tiny

saturntech9

January, 23, 2013 AT 7:57 AM

I looked up your car on my Mitchell on demand for coolant replacement and refill it just says fill the coolant let it run and add coolant as needed as the air works its way out. Running it with the cap off can be dicey that hot coolant doesn't blow all over you when it gets hot. Keep me posted on what you find.

Tiny

pmannin

January, 23, 2013 AT 10:40 PM

Ok I put the thermo in with factpry gasket. No over heat but still no heat out of heater. And also the hose that runs to the water pump is hot so is the hose from the radiator. To thermostat

Tiny

saturntech9

January, 23, 2013 AT 11:02 PM

Alright we fixed one problem at least. When its hot see if both heater hoses going into your heater core at the firewall are both too hot to hold?

Tiny

pmannin

January, 25, 2013 AT 3:50 PM

No both hoses a just barley warm.

Tiny

saturntech9

January, 25, 2013 AT 11:13 PM

Are the hoses kinked? There is no heater control valve on that car. Is the heater core clear and not plugged?

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