car still vibrates and has hard start

1988 VOLKSWAGEN JETTA
350,000 MILES
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MISTER KAY
  • MEMBER
  • 4 POSTS
after replacing carb kits and two engine mountings and intake manifold gasket car still vibrates and has hard start. Worse when the fan kicks in.






Aug 26, 2012 at 12:43 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
did you do a compression test to verify the motor is good??

Roy
Aug 26, 2012 at 1:05 PM
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EXOVCDS
  • ✓Experienced Mechanic
  • 1,882 POSTS
Is this a carb conversion? Are the jets dialed in?

Disconnect the brake booster vacuum hose from the intake and plug the intake
to see if that makes a difference.

Thomas
Aug 26, 2012 at 2:30 PM
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MISTER KAY
  • MEMBER
  • 4 POSTS
Yes I did do a compression test. When I replaced the intake manifold gasket I discovered that the exhaust manifold had a crack on it

Sep 2, 2012 at 12:33 PM
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MISTER KAY
  • MEMBER
  • 4 POSTS
Now what happens is that my brakes would go to the floor sometimes and I've just replaced cylinders, drums and shoes. I did bleed!
Sep 2, 2012 at 12:35 PM
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