944 idling problem

THILTONNC

MEMBER
1984 PORSCHE 944
4 CYL
2WD
MANUAL

My '84 944 idles up and down almost to the point of cutting off after it warms up. Also, the temp gauge needle vibrates back and forth like a teletype. Are these two related? Thanks

Tuesday, January 25th, 2011 AT 1:47 AM

1 Reply

DOCHAGERTY

MECHANIC
9,601 POSTS

The idle problem might just be the throttle position swich is not adjusted correctly, it should be able to hear it go "click" when opening and closing the throttle plate. The gauge issue might be related to a wiring concern, look at and inspect for loose connections at the sender or perhaps the sender itself, wiggle test them and watch what happens at the dash.