Question about 1999 Pontiac Grand Prix

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Running hot where is the thermostat located ???

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Follow your top radiator hose to the motor,youll see a metal tube where the hose connects to,remove the two bolts off the metal tube lift off,thermostats right there.if this helps please vote me a fix ya

Posted on Jul 15, 2008


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Car makes a rattling noise like a wate rpump going bad when I slow down. But when I come to a stop and dinengage the clutch, the noise stops.

The heater bypass valve is located BEFORE the thermostat, so if your heater gets hot, your thermostat could be stuck closed. If there's any suspicion that the car is too hot, always change the thermostat (since it's a hassle to take it out, you might as well change it), and also check to see if you have enough antifreeze. The 4 banger Integra motor always runs hot, the temp gauge showing the needle almost half way. This is normal. Your noise sounds like the clutch needs adjustment, or changing. Another check you could do is test the fan relay (at the radiator). If it's faulty, that would explain why your car runs hotter than usual. #24 and #25 in the diagram.


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Location of thermostat in Dodge Dakota 2000 4x4, 6cylinder, 3.9

The thermostat is located on the rightside of the truck as viewed from the drivers seat. Follow the upper rad hose it connects to the thermostat housing. A good way to check if the thermostat is stuck is when the motor running and fully warmed up squeeze the hoses if it is hard then the thermostat is stuck. Another way is with the motor hot feel if the upper rad hose is hot; if it's not then your thermostat is stuck. Hope this helps.

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I don't know what year or engine you have but if you go to and put that in for VEHICLE TYPE ,than put THERMOSTAT in for part ,than select LOCATION - you will get step by step instructions with photos . and it's free !

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