ENGINE KEEPS OVERHEATING
2003 Chevrolet Malibu • 108,000 miles
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. And now my car keeps over heating. Trying to figure out how to burp the lines and if that dont work. How do I flush the heater core. Wheres the hose location or diagram.
January 21, 2013.
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?
Also is the radiator fan working and blowing really hot air out of it when it turns on?
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.
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.
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?
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?
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?
Jan 22, 2013.
Jan 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.
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.
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