YotaTech Forums - Engine Rattles like a Diesel After 3.4 L Rebuild

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Cooper04

08-01-2003 07:49 PM

Engine Rattles like a Diesel After 3.4 L Rebuild

Help! I recently had my 96 Toyota 4Runner V6 3.4 L engine rebuilt. Everything is fine, but my engine has this annoying sound coming from the fan clutch/ air intake area. It makes the truck sound as if it were a "quiet" diesel. Does anyone out there know what this may be.

MTL_4runner

08-01-2003 08:03 PM

Maybe a valve adjustment is needed?

Wes	08-01-2003 08:38 PM

What type of pistons were used? Some forged pistons often have piston slap until warmed up. Maybe machine work? Other than that, I agree with MTL_4runner.

Cooper04

08-07-2003 08:41 PM

Would this also cause the engine to lose power or acceleration. The knock sensor is setting off the check engine light now. Would valves being out of adjustment cause this problem?

its2slo

08-07-2003 09:09 PM

who rebuilt it? whats the warranty?

flecker

08-07-2003 09:30 PM

Sounds like valves to me also.

Cooper04

08-08-2003 01:03 PM

it was a local rebuild and has a 36 month warranty. i'm definetly taking it back

its2slo

08-08-2003 04:48 PM

they screwed up the clearance on the bore. if they bored it, did they? if so how far over?

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