06 grand prix gxp misfire
Asked by Dyllan Feb 11, 2016 at 10:45 PM about the 2006 Pontiac Grand Prix GXP
Question type: Maintenance & Repair
I have a 06 grand prix gxp has 135000 and been
misfiring and running ruff has it scanned and said
number 7 fuel injector was bad changed that still
doing the same thing now saying has misfires
check engine lights on then when driving flashes
read a few things about it but not sure need help
6 Answers
Possible causes - Faulty spark plug (s) - Faulty ignition coil (s) - Clogged or faulty fuel injector (s) - Intake air leak - Fuel injectors harness is open or shorted - Fuel Injectors circuit poor electrical connection - Ignition coils harness is open or shorted - Ignition coils circuit poor electrical connection - Insufficient cylinders compression - Incorrect fuel pressure
challyb2008 answered 6 years ago
sounds like a bad torque converter. put you foot on the brake and put it in drive.......does it feel like its wans to go dead? then shift to park or neutral does it idle higher? has your car been eating a lot more gas since this happened. also check to see how long it take to shift gears when taking off is it delayed? if so then its most likely a bad torque converter
George My 2006 gran prix 3.8 just weeks ago, shut off at very busy traffic light. 3 men pushed me out of traffic. Called AAA, they take me to Advance Auto Parts across the street, scan says MAP sensor. They have the $90 part, Advance down the road has the $42 part. AAA takes me there. I bought it, put it on, check engine light comes on for the first time since owning the car. Amazon has it for $13. Ordered it. Still rough engine after Amazon story. Scanned again, misfire code at Advance.Towed away hours later. Replaced plugs, wires and module. Car runs horrible after time and money. Check engine light still on. Fuel system left and haven't touched it. Wow.
George again...I also replaced the coil pack. So, new ignition parts to the hilt, new Map sensor and it idles like nitro motor. CAN'T drive it.
I am working on a 06 pontiac grand prix 3.8 and after I replaced all the plugs and wires it's still not running right but the scanner is saying that egr valve isn't working how do I do that replace it
