Grand Prix :: 2000 With 3.8L Engine Won't Start
I have a 2000 Grand Prix with a 3.8L engine that will not start. When I turn the key to the run position, the headlights and the dash lights come on, but when I turn the key to the start position, the lights go dim and nothing happens. No sound from the starter. I checked the battery and the starter and they are good. I installed a new positive battery cable. Still works the same. Not sure what else to check.
View 13 RepliesGrand Prix :: 1997 GTP - Leaking Fuel Line In Engine Bay
I am a proud owner of '97 Grand Prix GTP, it has always been a great car with really low maintenance for me. A few days ago I noticed a mild fuel smell and I checked the gas cap, the external fuel filter, etc... Then I lifted the hood and I saw that one of the two fuel lines that run between the firewall and the brake fluid reservoir had a seepage leak in front of the factory loom that secures both lines before going over the supercharger and on to the fuel rail. A fuel leak needs to be repaired immediately, so this is where I am so far.
I noticed that the leaking fuel line is actual a rubber/plastic fuel hose that is covered by a plastic heat proof cover that protects the hose. It runs from the firewall to the fuel rail along side another fuel line of the same size (a supply & return line I believe). Just before going over the supercharger they both have quick connect metal ends that meet two metal fuel lines that end up at the fuel rail. My current issue is that this plastic/rubber hose section of fuel line is discontinued and no longer available to order according to my local GM parts dealer. The way I see it, hunting down this part can be Plan A and Plan B can be duplicating this hose by making it with high pressure fuel injection hoses and the appropriate quick connect fittings.
Grand Prix :: 1997 - Hissing Noise After Turning Engine Off
I've been fixing things here and there (hub bearing, struts, etc.). My latest repair is the water pump, it was howling for a few seconds during cold starts; I just replaced it today, hopefully this unit lasts for a long time.
A few days ago, I noticed this hissing noise after I turn the engine off at normal temp. Since there was a leak from the radiator drain, I thought that was it and didn't care about it. I just installed a new o-ring on the drain cock along with the new water pump. Test drove the car and it turns out the noise is still there, is it normal or not, I didn't put much attention before.
The noise can be heard from underneath and above the engine, it kinda seems to be coming from the intake BUT I find it weird since I installed a new upper intake manifold in november of 2013. It's a Dorman unit and I followed all the instructions from the kit and the workshop manual. Lower intake manifold gaskets were replaced back in november 2009 after the engine was rebuilt because of a cracked head (not sure what type did the mechanic use, back then I didn't know much about repairs). It's hard to believe that these gaskets have failed already. I also replaced the coolant elbow almost two years ago after the belt tensioner assembly failed.
Pontiac :: 1991 Grand Prix - Transmission Fluid In Engine Oil
I have a 91 pontiac Grand Prix with a 3.1 and the car has NO leaks, however, I have noticed that the transmission fluid level go down and the engine oil goes up. My conclusion is that some how the tranny fluid is crossing over to the engine, is this possible? and if it is, how or where?
NOTE: my car has a tranny cooling line to the radiator but no engine oil cooling lines and the colant is clean. how is it possible?
Grand Prix :: 1997 Pontiac Gp Oxygen Sensor Fuse On Engine?
Where the fuse that controls oxygen sensors on a 1997 pontiac grand prix 3.8L engine? i read some where it is under hood fuse panel, but what is the marking for the fuse?
View 2 RepliesGrand Prix :: 2004 Engine Cranks / Turn Over But Won't Stay Running
The engine cranks and turns over when I turn the key, but won't stay running unless I give it some gas. My mechanic doesn't know what's wrong with it, but I haven't starting having him replace parts. What's going wrong. Could it be the fuel filter? fuel pump?
View 9 RepliesGrand Prix :: Reduced Engine Power Warning - Traction Control Lights Comes On
This has happened to me twice now, 2 weeks between occurrences:
Driving to work, about 10 minutes into the trip - traction control light comes on, "Reduced engine power" message appears on DIC, and check engine light comes on.
The car is an '08 Prix, no charger, with 51K on it. This is actually the first trouble I've had with the car since it left the dealer lot.
I pull over, turn car off. Turn back on - traction light goes out, and engine is running at full power. The check engine light remains on for about 5 starts/stops then goes away.
I haven't had the engine scanned yet. The only thread here I could find recommended replacing the throttle body. The person decided to clean the throttle body, and that was the last post.
I was thinking of removing the individual electronic components from the TB and cleaning them and the area around them in the TB. (I have the sensor-safe cleaner for TB's).
I don't think this error condition would be a warranty issue, but I'm not sure. It's a MAJOR hassle for me to get the car to the dealer.
Grand Prix :: 2002 GT 3.8 - Losing Total Electrical Power Randomly After Starting Engine
My 2002 GT 3.8 with 157,000mi has recently and randomly been losing total electrical power after starting the engine. Engine fires like a champ then after 2-3 seconds will completely die- no engine, no lights, no radio, no locks, nada. The key will be stuck in the ignition and can remove it after playing with it. After a time that I haven't been able to determine, electrical power will be restored after I reinsert the key. Sometimes she will stay running after restarting: sometimes not. But she never hesitates to start.
After the first occurrence she ran fine for 3 days but did notice the driver information center would flicker. It never went completely dark, but go from bright to dim- which has previously never happened.
The car has been parked outside and it has been raining quite a bit- I did notice a few times there has been water on the passenger side floor. I had this problem years ago and it was supposed to have been fixed at the shop.
Also of note: I've had the known GP ignition lock issue where the key will not release for the past 3 years. Just been using a pen to manually release the lock from the bottom of the steering column. Don't think it's a battery problem as it is less than 2 months old.
Grand Prix :: 1997 - Very Loud Rattle From Drive Belt Area Of Engine At Idle
I have a 97 GTP. When I am at idle, I get a very loud rattling noise coming from the drive belt area of the engine. The noise goes away when you rev the engine up, but returns immediately when idling. I removed the supercharger belt assembly, and then noise still occurs. This just started tonight out of the blue, and It is extremely loud.
View 14 RepliesGrand Prix :: Battery Won't Charge
I just bought a new 2001 Grand Prix. I am not completely car savvy, but I know a few things for a lady.
The battery won't hold a charge.
and the computer diagnostic tester thing says the Headlamp Relay is malfunctioning.
95 Grand Prix Ignition Cylinder - Cannot Turn Key
I have a 95 Grand Prix 3.1L and I can't turn my key. You can put it in and take it out, but it won't turn whatsoever. It's stuck in my driveway and I've tried just about everything to get it to turn.
View 1 RepliesGrand Prix :: 2005 GT Transmission Was Slipping
Thought my transmission was slipping. So I changed the tanny. been driving it for a few days and now it doing the same thing. Is it possible that it a different problem with the same symptoms?
View 4 RepliesGrand Prix :: 2002 Pontiac - When Turn Off The Car Key Only Goes To Acc
When I turn the car off the key only goes to acc. If I wait a few minutes I can hear a clicking sound coming from the steering column I think. Then I can turn it off all the way.Whats causing this? and how do i fix it. My car is a pontiac Grand Prix 2002.
View 2 RepliesGrand Prix :: 2004 - RPM Will Drop All The Way Down And Stall
When you are accelerating anywhere from half to full throttle it may cut out at any given time. The RPM will drop down, it may bounce up and down for a bit and recover, or it will drop all the way down and stall. If you let off the gas it may or may not recover. If it stalls so far from the tests I have done if you never shut the key off it will never restart again. If you shut the key off and wait from 5 to 10 minutes it will all of a sudden restart normally like nothing ever happened. If you try to restart it immediately even if you shut the key off and back on it will not start.
When it does not start when I am attempting to start: Fuel pressure according to my gauge is between 55 and 60 psi. Inline spark tester shows that it is getting a spark. Engine sounds normal while cranking so in other words compression sounds normal. I have an LED test light rigged up showing when an injector fires, and it does show electrical activity going to the injector when it opens (flashes). Only clue is that it SEEMS dimmer when it wont start, but I have no clue if thats how it normally is on start up. Its only a slight difference from the brightness of a normal idle brightness. I have a snap on scanner hooked up, nothing that I know of looks abnormal in the data and it will not throw codes when this happens.
Parts I have changed or cleaned so far: Changed the fuel filter, crank sensor, cam sensor, ignition module, and MAF sensor. Cleaned the throttle body. When the car is working normally it runs strong, good power, smooth. Starts great normally.
Grand Prix :: Harsh Shifting From 1st To 2nd And Then From 2nd To 3rd Gear
What may be causing my car to harshly shift fron 1st to 2nd and then from 2nd the 3rd. One solution some one had was to replace the:
"TPS (throttle position sensor). The other reason for hard shift is a worn Boost valve and will need to be replaced, or a faulty transmission fluid EPC (electronic pressures control valve). Both Boost valve and EPC are located in the Valve Body and can be replaced with out dropping the valve body, but have to drop the transmission pan".
I did just recently top off the tranny fluid because it was running a bit low but there is no leak....
Grand Prix :: AC Compressor Not Engaging / Rattling
Last year my a/c worked off and on. so far now its not working at all. Compressor isn't kicking on. i bought a bottle of the EZchill refrigerant to recharge the system. I took the relay out and added 12+ to the pin to kick on the compressor. Even with the compressor running the gauges are in the blue range which is the normal operating range. With the compressor running, the air is cold but when i stick the relay back in the compressor wont kick back on. I tested the relay and its fine. Also the compressor is rattling.
View 8 RepliesGrand Prix :: 99 - Fluid Under Right Side Of Car In Parking Lot
Last weekend, I saw fluid under the right side of the car when in a parking lot and found a rather large puddle of almost clear, oily fluid on the garage floor when I got home. I figured it was power steering fluid. I just finished a rebuild a couple months ago but the old power steering pump wasn't changed, so I was guessing a leaky hose or seal.
I quit driving the vehicle. A much smaller puddle, barely more than a spot, appeared. But it was much nearer the front of the vehicle than the PS pump. And the PS pump fluid level is still full.
Not much evidence of dripping fluid in the engine compartment. Is it possible that the new motor mount installed just a few months ago cracked and leaked its fluid already? Don't know how I could verify that without removing the mount. I'm at a loss for the source of the fluid.
Grand Prix :: 08 - Misfire And No Spark On Cylinder 6
Driving last night and my 08 died after searching I found the ICM fuse was blown. I replaced the fuse and now it has a misfire on cylinder 6. I have changed the coil with no luck. I replaced the plugs and wires about 2 weeks ago and I don't find any problem with the plug or wire. I checked at the coil and there is no spark at all on cylinder 6. I was thinking the ICM is bad but was wanting some opinions.
View 11 RepliesGrand Prix :: 2002 How To Test The New Harness
I have an 2002 GT with a 3.8 in it. Two wires broke on my harness that plugs into the shift solenoid so it will not shift out of park.
I got a new harness and wired it how it was wired before but it is not working when I plug it back in. Is there a way to test the new harness to make sure it works?