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Forum: Engine & Transmission

09-10-2014, 10:27 PM

Replies: 7

Knock, knock . .

Views: 19,400

Posted By fredguaz

Could somebody please comment on my last post? ...

Could somebody please comment on my last post?
It seems that my manual suggests that by doing the test of pulling one plug wire at a time, a spun bearing would be indicated by knocking that goes...

Forum: Engine & Transmission

08-28-2014, 06:22 AM

Replies: 7

Knock, knock . .

Views: 19,400

Posted By fredguaz

OK to follow up on this issue, I warmed the...

OK to follow up on this issue, I warmed the engine and put truck in drive and held the brake (auto trans) as odat suggested. There is no discernable difference in the knocking when I rev holding the...

Forum: Engine & Transmission

08-19-2014, 08:12 AM

Replies: 7

Knock, knock . .

Views: 19,400

Posted By fredguaz

Thanks odat. I will try this when I get home...

Thanks odat. I will try this when I get home tomorrow.
I read where pulling wires one at a time is not good for EI, so I didn't do it.
Perhaps wishfull thinking hoping it's not rebuild time...

Forum: Engine & Transmission

08-18-2014, 08:42 PM

Replies: 7

Knock, knock . .

Views: 19,400

Posted By fredguaz

Knock, knock . .

Hello,
I have a 1990 GMC Jimmy S15 4x4 with 4.3 vortec FI
Had it in for service for intake manifold gasket (coolant leak), transmission service, tuneup ( plugs, wires cap rotor). When I picked it...

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