I'm working on my grandkids 2008 GP due to shifting problems and intermittent reduced power (limp mode). I've learned on forums and videos that sometimes the brake pedal position sensor can sometimes cause the shifting problem in conjunction with the gear shift solenoid, so I put in a new sensor today. (I have a shift interlock solenoid ordered and on the way.
After replacing the brake sensor, I started the car and put it into gear, but it just revs in any gear but doesn't move. I put it back into park and tried again. I was going to get out and disconnect the battery to see if that would reset anything, but I tried once more and the 3rd time it was stuck in park again. I had taken my truck with my tools in it home and had my wife take me back to the car (in the high school parking lot where they last drove it to before it started "getting worse", the kids said) to follow me home on a test drive and it case it went into limp mode, so I didn't have the tools to disconnect the battery cables with me.
I've read two different stories on resetting the new brakes sensor. A few have said it needs to be recalibrated by a scanner that will communicate with the computers, and a few other folks say you just need to disconnect the battery for a few minutes to do the job.
My question is, will the battery disconnect work? And secondly, if not, how do you get hold of a scanner that will reset it without having to pay big bucks for a scanner I'll never need again? Can you rent them? Are there places that loan them? My grandkids are sophomore and juniors in high school, and Pawpaw has to figure this out so they and our daughter can get back to normal. Thanks in advance for any help, suggestions or comments. Lee
After replacing the brake sensor, I started the car and put it into gear, but it just revs in any gear but doesn't move. I put it back into park and tried again. I was going to get out and disconnect the battery to see if that would reset anything, but I tried once more and the 3rd time it was stuck in park again. I had taken my truck with my tools in it home and had my wife take me back to the car (in the high school parking lot where they last drove it to before it started "getting worse", the kids said) to follow me home on a test drive and it case it went into limp mode, so I didn't have the tools to disconnect the battery cables with me.
I've read two different stories on resetting the new brakes sensor. A few have said it needs to be recalibrated by a scanner that will communicate with the computers, and a few other folks say you just need to disconnect the battery for a few minutes to do the job.
My question is, will the battery disconnect work? And secondly, if not, how do you get hold of a scanner that will reset it without having to pay big bucks for a scanner I'll never need again? Can you rent them? Are there places that loan them? My grandkids are sophomore and juniors in high school, and Pawpaw has to figure this out so they and our daughter can get back to normal. Thanks in advance for any help, suggestions or comments. Lee