Question about 2004 Pontiac Grand Prix
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Posted on Jan 02, 2017
SOURCE: 2004 grand prix gt going crazy
I think its you alternator, the battery and alternator kind of work back to back with each other. I will take the car to shop that you know and can trust and have them diagnose the car all together. Good Luck.
Posted on Jan 26, 2009
Hi Melody- it feels like you could be right. it feels like your car was well worn when you got it. common causes of overheating are coolant too low, which is what i suspect was the case when you first got it. a stuck closed thermostat not allowing coolant to circulate. i assume you have an electric cooling fan- check to see if your fan motor is fried. you could also have large air pockets inside your cooling system which can give false coolant level. when you pour coolant into your radiator rather than your overflow tank, you introduce air into the cooling system that has to be purged by allowing the bubbles to work their way out through your radiator by squeezing your coolant hose you can assist the escape of these air pockets (with engine running) evidence of a cracked head can be presence of coolant in your engine oil-pull your oil dipstick and look. you say no evidence of coolant leakage, however, look underneath your car and check to see if there is coolant splatter surrounding the underside. it maybe that your car is maintaining enough pressure to run but when engine temps reach a point to where the radiator fan should kick on, and/or the thermostat should open to allow coolant flow and these things dont happen-the result is what you describe with no power and overheating that will eventually overstress your head(s) warped heads can cause the symptoms you describe. you can perform a compression test to help pinpoint a blown cyl. an idea for fixing your car for cheap would be to take it to your local high school auto shop. the only way kids learn the trade is by subject cars. ill bet you can even arrange them to pick it up. the will fix your car for cost. you would only need to supply whatever parts are needed to make the repair. its a win-win situation because they get to learn by fixing your car and you get to use your car for doing mommy things without fear of labor fees. which are around $120/hr. I hope i have helped you with your car good luck!
Posted on Feb 12, 2009
The regulator could be sticking in the alternator. Unplug the alternator and see if the battery goes dead. I replaced an alternator once and the new regulator was bad.
Posted on Feb 15, 2009
That joint & where wires separate, would be a good spot to use a clamp on amp meter, if you have, or know someone who has one, then you could get reading on each one, and zero in on one(s) with most draw.
Posted on Apr 01, 2009
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