1999 GT Grand Prix

1999 PONTIAC GRAND PRIX
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GRANDPRIXGUY
  • MEMBER
  • 2 POSTS
3800 series II motor. Here is the problem. Notice some white smoke coming from both mufflers. I drove about 5 miles down road the Service Engine light came on and my car started to miss bad and now barely runs?

My Anti freeze is low and there are no leaks under the car?

Car has 84000 miles on it. What do you think this is? Head Gaskets? or Exhaust manifold gasket? How do you determine what the problem is? I have no Anti-Freeze in the Oil at all. How much to repair?
Sep 29, 2007 at 1:19 PM
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DENNYP
  • ✓Experienced Mechanic
  • 1,824 POSTS
[quote:d1af700f62="grandprixguy"]3800 series II motor. Here is the problem. Notice some white smoke coming from both mufflers. I drove about 5 miles down road the Service Engine light came on and my car started to miss bad and now barely runs?

My Anti freeze is low and there are no leaks under the car?

Car has 84000 miles on it. What do you think this is? Head Gaskets? or Exhaust manifold gasket? How do you determine what the problem is? I have no Anti-Freeze in the Oil at all. How much to repair?[/quote:d1af700f62]you probably have an internal coolant leak at the intake plennum. The plennum is probably melted where the EGR tube goes into it.Doorman products makes an inexpensive replacement manifold.
Oct 2, 2007 at 12:17 PM
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