My 1999 Jeep Cherokee, 4L inline 6, has a very weird problem. Usually, after starting, it runs well for around 10 seconds, during which time I back up and get ready to leave. Then when I switch to drive, it starts to run poorly, having no acceleration in speed or and very little in engine rpm, until I stop using the brakes. Exactly when the suspension relaxes, the idle returns to normal and it runs perfectly after that.
Sometimes the rough running starts while I’m backing up too. So I don’t think it related to the transmission. But all I have to do is completely stop, and then it runs great from then on.
This doesn’t happen every time, but probably 60-80% of the time. It’s been happening for about 2 months now. Thanks in advance for your help!