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1993 Pontiac Transport engine makes rough noise

Tiny
PANTERITO
  • MEMBER
  • 1993 PONTIAC TRANSPORT
  • 200,000 MILES
This vehicle was parked for 3 years, then I decided to fix the coil pack the van started, but after I drove it from the mechanic sop it started to make a loud rough nocking noise. I am afraid it may be the timing belt or worst.
Monday, September 23rd, 2013 AT 9:10 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
I think these on ly came with a3.1LV6 which doesn't have a belt it's a chain. If anything it may be a rod knock have the oil pressure checked manually that should tell you or pull one plug wire at a time to locate which cylinder it is, it will stop knocking if it 's a deep knock. That will locate the cylinder.
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Monday, September 23rd, 2013 AT 9:20 AM

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