SPONSORED LINKS

1998 Pontiac Grand Prix Cooling

Tiny
CHARLIE1229
  • MEMBER
  • 1998 PONTIAC GRAND PRIX
  • 170,000 MILES
Should I be concerned if I have a black guck around the underside of my radiator cap. I do have overheating problems every once in a while when in traffic. So when I'm not moving and driving in the city my engine temp gets a little high.
Sunday, June 30th, 2013 AT 4:14 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,192 POSTS
If the vehicle overheats when you are stopped in traffic, make sure the radiator fans are turning on. As far as the gunk, I would recommend flushing the system. Also, make sure there is no oil mixing with the coolant as well as coolant mixing with the engine oil.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, June 30th, 2013 AT 9:18 PM

Please login or register to post a reply.

Related Radiator Cap Content

Radiator Cap Replacement
VIDEO
Radiator Cap Replacement
Instructional repair video
VIEW MORE

Sponsored links