1999 Pontiac Grand Prix No compression in the engine

Tiny
JLHILBERT
  • MEMBER
  • 1999 PONTIAC GRAND PRIX
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 15,000 MILES
My Grand Prix is not getting compression, what might be the cause?
Monday, November 2nd, 2009 AT 10:43 AM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,549 POSTS
No compression on any cylinders?

Camshaft is broken, timing chain broke, timing chain lower sprocket has broken woodruff key.

While it could be a broken spring, pushrod, rocker, I can't imagine they would ALL be broken.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, November 5th, 2009 AT 6:49 AM

Please login or register to post a reply.

Related Engine Compression Content

Engine Compression Test
VIDEO
Engine Compression Test
Instructional repair video
Compression Test
GUIDE
Compression Test
A car's engine needs cylinder compression to run correctly. This compression is caused by the engine pistons traveling upward to the top of the cylinder bore and then...
VIEW MORE

Sponsored links