Question about 2006 Pontiac Grand Prix

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Heat not working 2006 grand ptix

Pump is working water not going through heater core

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  • Pontiac Master
  • 3,103 Answers

Heat control valve shut off.

Posted on Dec 26, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 74 Answers

SOURCE: No heat

confirm coolant flow to heater core and flow out of heater core

Posted on Sep 24, 2008

  • 35 Answers

SOURCE: '94 grand am cooling system failure

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

johnsmith992
  • 37 Answers

SOURCE: Replace heater core in Pontiac Grand Am GT 3.4l

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

  • 1118 Answers

SOURCE: 2006 pontiac grand prix vary little or no heat

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

  • 6 Answers

SOURCE: I own a 1994 Grand Prix 3.1 motor. The temp gauge

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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2006 dodge grand caravan replaced thermostat and radiator, still no heat?? And the van is running hot


How hot is the engine in degrees F? With a fully warmed engine are the heater hoses, hot? Check coolant flow through the heater core. If no coolant flow through the heater or engine, I'd have to check water pump.

Sometimes when the cooling system is opened, it may get air in the system, your temp gage may be reacting to air in the system?

Nov 22, 2014 | 2006 Dodge Grand Caravan

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What should the temperature of the heater core inlet hose be?


heater hoses run from the rear of the block to the water pump. One hose into the heater should be hotter than the other because heat is transferred in the heater in the car. . The cooling system draws water from the bottom of the radiator ( water pump inlet)which is always cooler than the top hose and dispenses it throughout the engine and heads including the heater core. It is then pushed past the thermostat with all the heat from the engine to the top of the radiator where it is cooled down by the air passing through the radiator . Check that the air vent for the cabin is set to recirculated cabin air and not fresh air from the outside as it will require recirculated air to increase in temperature to work properly

Nov 14, 2014 | 2006 Pontiac Grand Prix

1 Answer

When car slows down heat cools down


when you have that problem , almost all the time is the heater core clogged , you can have the engine running until reach normal temperature and touch both heater hoses at the fire wall, if one is hot and the other is not them the problen is your heater core.

Apr 16, 2014 | 2006 Pontiac Grand Prix

2 Answers

I have a 2006 pontiac grand prix 3.8l my heat only blow cold aair I checked the thermostat and the heart inlet hose is hot but the outlet hose is luke war what could this be maybe clogged heater core.


Ok fellow 2006 Grand Prix owners!! By trial and error, I went through the process of elimination because my car would over heat and had no heat inside. After changing the thermostat, I had to replace the water pump. However, after you do this, you need to open the inlet hose bleeder and let the air out a few times. This solved my issue of overheating and I now have great heat!!!

Oct 23, 2011 | 2006 Pontiac Grand Prix

1 Answer

Had to replace water pump after replacing... heater blows hot air at first then after 8 to 10 seconds turns cool. before replacing water pump i always heard water running through heater core when...


You may have loosened or lost some material into the system while changing the pump and caused a blockage in the heater core. There could be a little coolant going through to warm up but not enough to continue supplying heat once the initial heat is drawn down.
Ideally a back flush through the heater core may take care of it. You should be able to find a kit to help with in an auto parts store.
Open the hood and look on the firewall of the car. There should be 2 rubber hoses going into the firewall and into the car. They will likely have spring clamps just like on the radiator hose. Remove both lines. Then get a hose and put it in one line and run the water until it comes out clear. Then do the same thing with the other side. Do this a couple of times. Then reconnect the 2 hoses ahd check the level of the radiator. Then start the car with the radiator cap off and wait a while for the thermostat to open and have the heater on so it will cycle through the whole system. Then top off as needed.

Jun 14, 2011 | 2006 Pontiac Grand Prix

1 Answer

2006 pontiac grand prix vary little or no heat


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.

Mar 18, 2009 | 2006 Pontiac Grand Prix

2 Answers

Pontiac grand am 1994 water comes out overflow


First question: why was the heater core replaced. Was it leaking water inside the car? Or was it replaced due to no heat inside the car. If it was replaced due to no heat inside the car, the shop you had taken it to shouldn't have replaced the heater core until they conducted tests of why there was no heat even if the customer insists on replacing the heater core. The reason why I'm asking is there's a possibility of the head gasket was leaking causing the poor circulation of the water to the heater core. If so, you may have replaced the heater core for no reason and most likely cost you a bunch of money. I live by this rule in our shop: DON'T JUST THROW PARTS AT THE CAR! You 'll end up spending way more money than you needed to.

Feb 12, 2009 | 1994 Pontiac Grand Am

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