1997 Geo Metro engine noise

81,000 MILES • 4 CYL • 2WD • AUTOMATIC
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FINKLELARRY
  • MEMBER
  • 1 POST
my car has a loud knock noise like it has a bad rod but if i am driving about 28to30 mph and lightly hold down the gas the noise seems to go away i was wondering if there is a common problem with this or if there is something that might ring a bell also was wondering if there was someway to tell exactly what it is whether it is a main bearing or a adjustment to the valves or replaceing the lifters etc any help would be appreciated thank you.
Mar 6, 2008 at 9:59 AM
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SERVICE WRITER
  • ✓Experienced Mechanic
  • 9,123 POSTS
Hard to say, I have heard of the key
on the lower timing pulley that makes it knock.
Timing belt been replaced?
Mar 6, 2008 at 10:28 AM
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