Engine ticking

Tiny
WAXSHOE
  • MEMBER
  • 2007 PONTIAC GRAND PRIX
  • 3.8L
  • V6
  • FWD
  • AUTOMATIC
  • 114,000 MILES
My car has a ticking sound coming from the motor. It sounds like top of motor near firewall. The sound only can be heard after the car has warmed up and the ticking gets louder and faster with higher rpm's. It does not sound like a rod knocking as that would start knocking right away. There is no metal shavings in oil or transmission fluid and it only has 114,000 miles. It does not seem to affect the performance but sounds terrible when I accelerate and a bit embarrassing sitting in traffic. I am afraid it is (or will be) a major problem. Please help
Friday, July 7th, 2017 AT 8:50 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
This may be a lifter/push-rod problem. Either the lifter has lost what they call oil pump up or is worn out which can be from a bent push-rod or a loose rocker arm. You can pull rear valve cover for that, but it may be on front and traversing the noise. Rocker arm not shown.
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Saturday, July 8th, 2017 AT 5:45 AM

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