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1998 Buick Century Engine is rattling

Tiny
ASHMACK
  • MEMBER
  • 1998 BUICK CENTURY
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 17,300 MILES
When my car is idle I can hear like a tick tick, noise underneath the hood, but when I go to drive the car its still ticks. Like when I accelerate the ticking noise will speed up, and go faster. Does anybody know what this could be. I've been told its the lifter, or the timing belt. Can anybody help?
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Wednesday, January 20th, 2010 AT 8:00 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Does the sound come from the top of the engine? If so, it is a lifter or rocker problem. Check the rockers for excessive play.

Let me know what you find.

Joe
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Friday, January 22nd, 2010 AT 10:16 AM
Tiny
TALLYGIRL68
  • MEMBER
  • 1 POST
My car ticks but my rocker are all fine no play. The noise gets worst when reving up the engine, and then the noise is loud and sounds like a rod knocking
or bearings but crankshaft and bearing are all fine. Cylinder 5 is miss firing also. We have got the motor torn down and now checking everything that could be wrong
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Tuesday, January 26th, 2010 AT 3:38 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Make sure to check the mains and rods with plastigauge and you may have a collapsed lifter that is causing the ticking. Check for wear on the pushrods where it may have been pounding on it.

Let me know what you find.

Joe
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Tuesday, January 26th, 2010 AT 6:32 PM

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