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1996 Geo Tracker

Tiny
THMICK37
  • MEMBER
  • 1996 GEO TRACKER
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 158,000 MILES
Hi, The engine in my 96 Tracker is making a knocking or tapping sound.(Which ever you prefer)
It only does it at idle. Makes no noise when driving. Any clues to as what it could be.
Thursday, June 2nd, 2011 AT 5:55 PM

6 Replies

Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
It could be anything from a loose external part vibrating to something wrong internally. Check under the hood physically for loose parts with the engine off. Listen and look under the hood with it at idle to see if it can be narrowed down to an area or component at idle.
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Thursday, June 2nd, 2011 AT 6:43 PM
Tiny
IBUPROPHEN
  • MEMBER
  • 13 POSTS
Sometimes when the lifter's become a bit loose from wear, it will make a light ticking or tapping noise that is drowned out when driving (from accelerated RPM's). If it is the lifter's and it is slight/light soundining, I wouldn't worry about it (in my case) but, If it drives you nuts (as it would my wife), I would just have them adjusted at the shop or on your own ONLY if you are mechanically inclined as you can do real damage if not done to specs. I hope this helps.
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Tuesday, June 7th, 2011 AT 2:01 PM
Tiny
THMICK37
  • MEMBER
  • 12 POSTS
Okay, There are no loose parts and the sound appears to be coming from the bottom of the motor not the top. I could be wrong. I will pull the cover off this weekend and check the lifters with a torque wrench.
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Tuesday, June 7th, 2011 AT 2:16 PM
Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
If you have a long-ish hose, ratchet extension or a piece of metal rod, start the engine and use it as to help you narrow down where the sound is coming from. Place one end against the valve cover and listen. Place it against the engine block and listen. And place it against the oil pan and listen. This will help you identify where the sound is coming from. Make sure you don't place it against any moving parts and that it is long enough to keep your head away from the engine.
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Tuesday, June 7th, 2011 AT 6:16 PM
Tiny
PEDRO.CANO
  • MEMBER
  • 1 POST
Could you fixed it?
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Friday, January 17th, 2020 AT 2:01 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,465 POSTS
PEDRO, Unfortunately we never received a response back with a resolution. Do you have a similar issue with a Tracker?
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Sunday, January 19th, 2020 AT 4:09 AM

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