'85 Jetta (gas). Most of the time when I start it the idle is just fine, about 750-800 RPM. Every once in a while - maybe once every dozen starts or so - when I start it, the idles swing back and forth wildly between about
1500 RPM and almost stalling, lasting for maybe 5-10 seconds then smooths out. One time (and only once, as I recall) this lasted for several minutes including driving a couple miles down the road (Which was REAL annoying, believe me) before it eventually settled down.This seems to be entirely random - doesn't seem to be related to ambient temperature or weather or how long since I've last driven it.
Any suggestions ?
Thanks.
- FM -