Car sometimes dies at highway speeds

Tiny
VERNONP
  • MEMBER
  • 1991 OLDSMOBILE 98
  • 3.8L
  • V6
  • FWD
  • AUTOMATIC
  • 156,000 MILES
My car dies at highway speeds with seemingly no cause and only restarts upon stopping and letting it sit for a moment. Idk if this could also related but around the same time my air conditioner wouldn't blow cold air until I unhooked and rehooked the negative wire on the battery, which made it work again.
Monday, August 3rd, 2015 AT 2:51 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 34,330 POSTS
This is typical of a failing crankshaft position sensor or camshaft position sensor. Either one can fail by becoming heat-sensitive, then work again after it cools down. The place to start is by having the diagnostic fault codes read and recorded, but you're going to have to stop disconnecting the battery. Doing so erases any fault codes, then that valuable information is lost.
Was this
answer
helpful?
Yes
No
Monday, August 3rd, 2015 AT 7:45 PM

Please login or register to post a reply.

Related Engine Stall While Driving Content

Is it Safe to Drive Check Engine Light?
VIDEO
Is it Safe to Drive Check Engine Light?
Instructional repair video
Engine Stalls While Driving
GUIDE
Engine Stalls While Driving
An engine that stalls while driving and then starts back up again, either immediately or after a short time is different from an engine that just wont start or if the...
VIEW MORE