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2003 Chevrolet Malibu Repair Question


Topics covered: Gas, Radiator, Thermostat.
Mileage: 108,000 miles.

Asked on January 21, 2013

Chevrolet Malibu Gas Problem

Where can i find the intake and out flow hoses to the heater core to flush it. it might be clogged. i just done a complete a full gasket change on the gm 3100 engine. amd now my car keeps over heating. trying to figure out how to burp the lines and if that font work. how do i flush the heater core. wheres the hose kocation. or diagram.
Avatar Asked by pmannin

Answer

Replied on January 21, 2013

The heater core if it was clogged wouldn't cause a overheat.Is both upper and lower radiator hoses getting too hot to hold?

Tiny Answered by saturntech9 (expert)
23,394 answers provided
Replied on January 21, 2013

Also is the radiator fan working and blowing really hot air out of it when it turns on?

Tiny Answered by saturntech9 (expert)
23,394 answers provided
Replied on January 21, 2013

Plus is the radiator fan blowing tons of air out of it?

Tiny Answered by saturntech9 (expert)
23,394 answers provided

Replied on January 21, 2013

the driver side hose that leads to the water pump is jot. the two on rhe passanger side are cold. yes thw gan kicks on hard and blows a ton of air.

Tiny Response from pmannin
1 question asked
Replied on January 21, 2013

im sorry the driver side hose that runs from the radiator to the thermostat gets that hot the one that goes to the passanger side dont it stays cold.

Tiny Response from pmannin
1 question asked
Replied on January 21, 2013

When the fan blows out tons of air is the air really hot or cold?If only one radiator hose is getting really hot sound like there is no flow thru the radiator.Did you ever replace the thermostat when you made the repairs?

Tiny Answered by saturntech9 (expert)
23,394 answers provided

Replied on January 22, 2013

yeah but the thermostate gasket dont fit in the slot on the engine. the gaskets bigger than the divit made for it. and melts the gasket every time. i reved it up to 3000 4000 rpms and the hose going to the theromstat did get hard. it stayed loose. I took it to the shop to get flushed and they told me the head bolts were never changes i wasnt getting presure. which the head bolts were steel. not aluminum. but still not heat car still over heating. and i got a nother question with that. how do you torque the headbolts right on this car. does the front sequence. mean the same for the back headbolts?

Tiny Response from pmannin
1 question asked
Replied on January 22, 2013

Sounds like you need to get a factory thermostat and gasket so it will fit properly then or find a aftermarket one that will fit correctly. Also which gaskets did you replace and why?Was it overheating before you changed the gaskets etc?

Tiny Answered by saturntech9 (expert)
23,394 answers provided
Replied on January 22, 2013

yes the head gaskets blew so i replaced all the gaskets head bolts. and a new water pump and thermostat. yes it was over heating thats why i went threw the process of figuring out why it was overheating and no hot air out of my vents. So now i gotta try to figure out why its still over heating and still no hot air.

Tiny Response from pmannin
1 question asked
Replied on January 22, 2013

before all this when i was driving a week prior the theromstate guage read normal at first when the heat would work. then when it shot up for a few miles cold air shot out till the temp went back down.

Tiny Response from pmannin
1 question asked