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Low coolant Water pump not working properly Cooling fan not working Thermostat not opening fully Radiator plugged or dirty Check the radiator fan.

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Q: Why would a 2002 Pontiac Montana overheat while your idleing?
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In your 1999 Pontiac grandprix se when you turn the wheel to the right you get a rattling noise and sometimes while idleing what could be causing it?

my guess is the lower motor mount


How do you shut lights off while engine running on a 2001 Pontiac Montana?

If you want to turn off the running lights off try to engage the emergency brakes. I have a 2000 Montana and that works.


If your vehicle begins to overheat while climbing a hill you should?

If your vehicle begins to overheat while climbing a hill you should


Why does your 2000 ford explorer xlt 5.0 over rev while idleing?

look for a loose vacuum line.


A lot of viberation while idleing not when running down the road?

Probably have a misfire or lean fuel mix NELSON


What causes a car to cut off while idling?

my experiencess with vehicles that cut out while idleing would be a fuel filter or fuel pump problem.


Why does a 1996 Oldsmobile ciera SL car stalls while running and starts back up?

If it is stalling when putting it into gear but not while idleing I would check your mass air flow sensor. It may need to be cleaned or replaced. If it is stalling when putting it into gear but not while idleing I would check your mass air flow sensor. It may need to be cleaned or replaced.


What makes a 1999 Pontiac Montana van engine stall while driving?

My 1999 Pontiac Montana would seem to "skip a beat" while driving. It then started stalling and restarting, all while driving at highway speeds. My mechanic found that an electrical cable that carried an engine sensor signal was leaning against a hot part of the engine. The cable insulation had melted or worn through, causing intermittent shorts. The shorts confused the engine computer, which then stalled the engine. He simply rerouted the cable and all was fine after that.


If you need to replace the head gaskets on a 1999 Pontiac Montana do you need to replace the exhaust manifold gaskets also?

it would be best because you could tear the old ones while removing them.


2002 Pontiac Montana ran out of gas I put 5 gallons in and it still wont start any ideas?

fill the gas tank with air and try to start while u are trying to start it..


97 lumina overheats while idleing?

start with water pump. If its a V6 3.1L have the intake manifold gasket checked. You may have a coolant leak.


What will cause a 1997 Pontiac Grand Am motore to shake while it is idleing but level out when you give it gas?

Any number of things, from a marginal or wire to low compression in one cylinder, a vacuum leak or in some cases an injector problem. I don't know if your Grand Am has multi-port injection or throttle body injection, so I can't answer that one for you.