2000 BMW 528

Tiny
MALAWATERS
  • MEMBER
  • 2000 BMW 528
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 900,000 MILES
After chainging the cylinder head why dose the car get gray smoke from the tail pipe and the presure does not release from thermostate hose
Monday, December 1st, 2008 AT 5:22 PM

1 Reply

Tiny
IMPALASS
  • MECHANIC
  • 3,112 POSTS
Hello -

Gray smoke is caused by brake fluid. It generally means that your brake master cylinder is bad, and is getting sucked through the vacuum brake hose. Remove the hose and see if there is brake fluid inside.

I am not understanding what you mean by pressure does not release from thermostat hose.
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Monday, December 1st, 2008 AT 7:26 PM

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