I am typing this out for a friend of mine. He has been experiencing these issues in his stock 2008 Pontiac Grand Prix GXP with 65,000 miles for several months now and it seems to be getting more consistent. I had him write out a synopsis of what is going on so this is a direct quote from him. Let me know what you guys think and if you need more info. I appreciate any and all help!
" My car intermittently stalls when I take off from a stop. It gives me a little gas and then just cuts out on me then back in and back out. When it cuts back in it shifts really hard. It feels as if it is running through the gears with pauses in between before it gets to 4th, then takes off. Then as I am driving down the road, my gauges will go crazy sweeping forward and back, but they do not actually reflect what the car is doing. When the gauges go nuts, they all jump at the same time and the car cruises normal at this time."
It sounds like it could be one issue causing all of these symptoms. PCM/BCM? I was thinking about changing his fuel filter, but it wouldn't explain his gauge issues. He says that when it gets going, it drives fine. Anyways, let me know what you guys think. He loves the car and it is driving him nuts.
I should probably tag the wizard himself... [MENTION=53]Turbocharged400sbc[/MENTION]
" My car intermittently stalls when I take off from a stop. It gives me a little gas and then just cuts out on me then back in and back out. When it cuts back in it shifts really hard. It feels as if it is running through the gears with pauses in between before it gets to 4th, then takes off. Then as I am driving down the road, my gauges will go crazy sweeping forward and back, but they do not actually reflect what the car is doing. When the gauges go nuts, they all jump at the same time and the car cruises normal at this time."
It sounds like it could be one issue causing all of these symptoms. PCM/BCM? I was thinking about changing his fuel filter, but it wouldn't explain his gauge issues. He says that when it gets going, it drives fine. Anyways, let me know what you guys think. He loves the car and it is driving him nuts.
I should probably tag the wizard himself... [MENTION=53]Turbocharged400sbc[/MENTION]