RMP's Shoot Up When In Park

Cvengrin
Sat, 30 Apr 2011 14:37:21 +0000
Maintenance/Repairs

I have a 2000 Chevy Malibu (187K mi). Last year I was driving to work (24 mi one way) and noticed when I came to a stoplight the car seemed to be really hard to stop. When the light turned green and I let off the brake, it jumped forward pretty hard then continued on the way. Once I got to the parking lot and put it in to park, the RPM’s went WAY up to around 3K the second I put it in park.

It did this on and off for a week or so, one time getting so high in park I was scared to drive it. It was really sporadic. It quit for a day or two, then started again. I finally took it to a transmission shop…a national chain that is supposed to be good. After 2 weeks they still didn’t know what was wrong, charged me $500 for looking at it…didn’t fix ANYTHING and it’s been fine for almost a year. The only thing they charged me for was hooking it up to their computer and doing diagnostics. They said they were going to have someone test each wire one by one because it was showing a computer malfunction. However they did not actually do any work on the car. Just tests. I got it back and it worked fine for some reason.

Now it’s started to do it again. Rev’d really high, up to 2K when I put it in park last night…but today it’s been fine. What could this be, and who do I trust?

3 posts - 3 participants