1999 Ford Explorer Repair Question
Asked on March 29, 2012
Transmission lag and slip
Hey, my explorer will rev up between 1st and 2nd gears and not accelerate. After it revs up it will accelerate just fine. When I stop, something will unstick underneath the floorboard. I could really use help on this, this has been going on for months and I cannot find the issue. There are no codes at all. The transmission fluid is perfect. It will not lag all the time. It can drive for two to three days and not do it. It does like to do it more often with the AC running. Earlier I was terrified, because when taking off from a stoplight, it would not go(the whole suv shook while it wouldnt go.) and then all of a sudden it jumped. Im so glad a car was not in front of me. Any ideas? I was told I could have a bad MAF but how can it be a sensor if my check engine light is off?
Also could it actually be a bad Valve Body Gasket? Thats what I think it is?
Replied on March 29, 2012
If the problem is electrical, there would usually have trouble codes and since none is present, it would be mechanical or hydraulically related.
Slipping can be due pressure leaks in the system.
It could be a failing seal, which explains the intermittent condition.
You would need to perform pressure test to check if anything is wrong.
Answered by KHLow2008
40,332 answers provided