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Do you have a spoiler? Could be coming from the bolts holding it on.
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Do you have to remove the dash on a '99 Grand Prix to fix an evaporator core that is not draining and leaking water through the dash vents?
No. You need to find the drain hose from the evaporator case, and clear the blockage from the hose and/or the case drainpipe it attaches to. Usually fishing up the hose from …underneath (outside) with a piece of wire will do. There is no drain hose however, just a nipple type plug that has to be cleaned out. It is hard to get to but easy to do. Look on the passenger side firewall about 1/2 way up and you'll see it. It just pulls off and the water will flow out that is backed up. Replace it when you are done. I had the same water leakage problem in my 2000 grand prix and they told me that it was that hose blocked off. I cleaned it and it still didn't help. It ended up being bad weather stripping on the black platic cowl that lays on the windshield under the wipers. I removed it and replaced the weather stripping and havent had a problem since. I had this problem, and the shop manual is just about useless to get it fixed. There is a rubber elbow, about 3/4" in diameter and 1-1/2" proud, that is pressed on to a port on the firewall. Make sure the engine is cool, because you have to reach down behind the engine on the passenger side of the car, near the exhaust takedown. It's about halfway down the firewall. I couldn't actually see it, but I felt water on the engine underneath it. When I pulled it out, it had a chunk of lint in it, and it was trapped where the boot points downward. I celeaned it out and put it back. I had to feel on the firewall for the port (it's metal and sticks out about a 1/2" from the firewall), and just pressed it back on.
Check under the distibritor, you may need to replace the o ring, it's not that expensive to have a mechanic do it for you. I replaced three on our 91 I recently sold it at 18…5000 miles
How do you fix a coolant system leak in a 1998 grand prix SE Doesn't seem to be leaking anywhere that it is parked?
If you see no visible leak and it is losing coolant, you may have a blown head gasket. Serious engine damage will occur if it is not repaired ASAP. The previous an…swer is exactly correct. This happened to me on my Grand Prix and I had to replace the entire engine because they couldn't find the problem in time. This will continue to get worse and worse until it finally overheats the engine from the compression leaking into the radiator and the coolant will leak into the oil and the engine will seize up. Get it fixed now! I just want to add, that I had a 97 Firebird Formula that would leak anti-freeze, but nobody could find leak, including me. It took a dealership 2 days to discover that the water pump had an intermittent leak and would leak out of weep hole in casting, had to be parked with pump rotated to just the right spot to see it leak. They had never seen that before. Probably head gasket, but this might help someone with similar problem. Park in on a steep incline. Nose up. I had a leak, but it collected in the suspension. It only dripped when parked on an incline. Tom McD Had that problem on a 97 Grand Prix. Turned out it was the water pump. The weep hole leaked onto the hot engine and would evaporate all evidence. It would not leak when parked and cooling system was not under pressure. Happened to see a little discoloration directly under pump, decided that must be it and replaced the water pump - problem was fixed. I had a leak like this and it turned out to be the lower intake to head gasket. I have spoke to several mechanics in my area and this seems to be a common problem. The plastic ring that holds the rubber seal in place in the gasket deteriorates and allows the seal to collapse. I had an internal coolant leak for almost a month before my engine hydraulic locked (luckily while it was parked and not being driven). Changing the gasket is not incredibly difficult if you have had previous experience with working on engines. Everything is fairly accessible, but the upper plenum (black plastic portion of the intake manifold) must be separated from the lower plenum (aluminum piece). There are two bolts hidden underneath it and it cannot be removed as a whole. One thing to be careful for is not to over torque the upper plenum (black plastic upper portion of the intake) when you reinstall it, it can easily crack and lead to more coolant leaks. I have a 1995 Grand Prix SE and this one is right on. The lower intake gaskets are plastic and junk. Make sure you have put on (or if doing yourself) metal gaskets or you will regret it. I did my own and she runs great. The metal ones are a little more $ but will last. Make sure you flush system a couple of times depending on what the oil looks like coming out of the pan and in valve train. I have an 06 grand prix that was losing water. Only water dripping was from evaporator drain which turned out to be hot water coming from leaking heater core. Nothing leaked into the carpet area just ran out the drain.
1999 Grand Prix Window ProblemI have had two 1999 grand prix cars that both had the drivers window stop working. One of them was just a bad switch that was inexpensive to have… fixed. The other 99 Pontiac needed a new window regulator which required the whole window assembly from the dealer for around $300 not counting labor. I found an aftermarket part for around $200 and I plan on doing the repair myself. Make sure you rule out the switch before buying expensive parts. Good Luck.
Answer Valve cover gaskets?
Answer . Most of the time fixing an Oil Leak requires replacing the gasket or seal that is leaking.\n. \nGood Luck and Remember. \nChange Your Mind, Not Your Oil. \nUse t…he First In Synthetic Motor Oil's. \n See My Bio For more information.
depends on where its leaking......could be easy if its a loose filter or loose drain plug but you could also have a blown gasket somwhere whether it be the oil pan head …gasket or a cracked block
It depends on where the leak is coming from. If it is a valve cover gasket it could be less than $100. If it is a rear main seal it could cost close to $700.
Give it a tune up. Change the spark plugs and wires..
The trunk release on a 2008 Pontiac Grand Prix is located on the floor, near the driver's seat. There is also one located inside the trunk for emergencies.
i own a renualt megane cabroliet and have a small leak where the roof meets windscreen frame,its drips down onto drivers seat, ive checked run off gutter to the front and …this seems clear, any ideas what could cause this problem
Replace the rubber seal. You could seal with silicone but you would be unable to open it again.
i have a 2000 pontiac grand prix that seem to burn alot of antifree
The lock and unlock switch for the doors unlocks the trunk too.Push the switch to the left and hold it.