Question about 2006 Pontiac Grand Prix
Pump is working water not going through heater core
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Posted on Jan 02, 2017
What engine do you have? One noted problem with the 4 cylinder engines is the reliability that at some point the intake will crack. I went through all the same things when I bought my 93. Drove off the lot, started overheating, replaced the thermostat and still had the problem without moving from the driveway. Look all around the intake. Make sure car is full of coolant and have the engine running. Most likely you will see a small coolant leak on the backside by the firewall. These cars were known for this problem. By the way if this is the problem make sure you take it to a reputable mechanic, make sure you get a new one installed. I had a used one and had the car back in the shop the next day. It then sat there for 2 more weeks while the used car dealer and I had a "discussion".
Posted on Jan 07, 2009
ram a sharp chissel or pointed head centre punch through the core and prise it out .,than tap the new one in place ,,,there u go bobs ure uncle
Posted on Jan 29, 2009
Are you sure you got all the air out of the cooling system? Air pockets are very common problem when you do any work to the cooling system. An air pocket will do what you discribe.
Posted on Mar 18, 2009
3.1 Engines are well known for there intake gaskets going out also known as a pentium . Watch to see if you lose coolant very slowly if so check the pentium.This could affect the heat coming out also . If you smell a slight sent of anti freeze that is what i would be checking. hope this helps.
Posted on Dec 29, 2009
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