1992 Corvette pops in the exhaust when it shifts at close to 5,000 RPM. It's an automatic LT1

Tiny
JAMES GUSTAFSON
  • MEMBER
  • 1992 CHEVROLET CORVETTE
  • 94,000 MILES
1992 Corvette LT1 Auto Trans. When you get on it hard and it shifts close to 5,000 rpm it seems to pop it the exhaust.
Sunday, April 8th, 2012 AT 1:44 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Could be a weak exhaust valve. A compression test will verify

if it is when you let off, the AIR diverter valve could be the issue.

If it is on accelaration, it also could be a worn camshaft lobe.

Make sure the basics are covered like the plugs, wires, cap and rotor.

Roy
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Sunday, April 8th, 2012 AT 2:01 PM

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