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Are you sure it's full of coolant? Thermostat in upside down? (it happens to the best of us) Are you sure the radiator fan is coming on? Belts tight??? Check everything twice. Even if you're sure it's not the problem. Not sure what Pontiac 400 is....I would make sure you have enough anitfreeze/coolant. Then make sure you don't have a leak in the radiator and that the radiator is big enough for the engine. Make sure (if the car is old enough) that the fan is working. Do you know who rebuilt it? Sometimes one of the headgaskets could be installed wrong and overheat the engine since that whole side wouldn't be getting circulation. Also, timing can contribute to overheating. Then again, a new engine can run a little warm for the first few miles, while the rings/cylinders are getting broken-in. Check that the EGR valve is working right, if it's stuck you could run hot and burn valves. If it's carburated there is the possibility that it's running lean, which can also cause overheating.
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What is the firing order for a 1983 Pontiac Bonneville with 3.8 engine?
Knowing a firing order of an engine can help diagnose engine problems. The firing order of a 1983 Pontiac Bonneville is 1-8-4-3-6-5-7-2.
How do you stop a car from smoking?
Take away its cigar.... but seriously there are some engine treatments that can help if the problem is minimal, you can find them at the parts store, but the only real solution in the end is to have the engine rebuilt.
Transmission in 2000 Pontiac Grand Prix GT previously rebuilt by Cottman Transmission warranty expired and now only shifts into in reverse Help?
Take a look at ripoffreport.com ( search cottman complaints ).
1999 Pontiac idles at 1200-1500 rpm why please help?
Check your engine thermostat, it maybe stuck open, keeping the engine from dropping off high idle
2000 freightliner with 60 series Detroit engine fan will not come on when engine heats up can nyone help?
I believe it wasn't until 2001 or 2002 that the engine fans on the Detroit diesels came on automatically when the temperature rose. You're probably required to flip the engine fan switch on manually.
What are the tune up specs for Pontiac 389?
Any parts store should be able to help you with this , just tell them the year of your car and the engine size.
1996 Mazda miata the engine has been rebuilt and now won't start because of a antitheft device needs to be reset please help?
this sounds fishy .... Did you screw that motor up ?
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pull your vehicle to the side of the road and turn the engine off after turning your wheels to face outward, therefore keeping the vehicle from rolling. then continue to get help for the main problem.
How will Haiti be rebuilt?
haiti can be rebuilt with the use of donations . other countries can also send builders to rebuilt haiti. and haiti can get help from us the world, and we can all make a difference for haiti and other victums from hurricaine catriana.
Where is the oxygen sensor on a 2001 Pontiac Grand AM 2.4 engine?
i don't know if its the same for that year but i do know that on a 97 there is one under the car that bolts on to the exhaust and another between the engine and the fire wall on top of the exhaust manifold which for the 97 is hard to find and get to, i don't know if this will help but its all i can do to help
What is the cooling system designed for?
to help cool the engine.oil does alot of the cooling,but not all.its also the source of your car heaters heat.its a mini radiator that coolant from your engine flows through,heats up and a fan blows that into your cabin.
