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Chevy S10 - GMC S15 and Sonoma Rattles and Noises

15 messages,  Last post on May 06, 2010 at 5:26 PM

You are in the Chevrolet S-10 & GMC S15 Sonoma Forum.

What is this discussion about? Chevrolet S-10, Auto Repair, Truck

Messages Page 2 of 2

#10 of 15 Re: LOUD Rattle from center of vehicle [bubbagravy] by hoodlatch

Mar 21, 2007 (4:49 am)

Replying to: bubbagravy (Mar 05, 2007 7:26 pm)
Sometimes the catylitic converter's heat shield becomes loose when the spot welds fail. When this happens it creates a terrible racket.

#11 of 15 rocker or lifter noise on engine start by tonydi1

May 01, 2010 (7:21 pm)

when i start my 1999 chevy S-10 pick up with V6 4wd the engine shakes for a few secionds and sounds like all the lifters lost there oil it gets quite after i min or two but when i step on the gas i hear them chattering oil psi is 40, oil is full with 5 - 30 just changed the oil again no change. if posable to e mail me with any sugestions at adin350675aol.com I would be thanks full
 thanks tony

#12 of 15 Re: rocker or lifter noise on engine start [tonydi1] by gonogo

May 03, 2010 (8:19 am)

Replying to: tonydi1 (May 01, 2010 7:21 pm)
Check the oil for gasoline smell, them V6's had a lot of fuel leakage problems under the plenum.

#13 of 15 Re: rocker or lifter noise on engine start [gonogo] by tonydi1

May 04, 2010 (4:35 pm)

Replying to: gonogo (May 03, 2010 8:19 am)
theres is no fuel in the oil no smell the oil is not black . oil psi is 4o to 50 on startup went temp comes up the noise quites down

#14 of 15 Re: rocker or lifter noise on engine start [tonydi1] by gonogo

May 06, 2010 (8:05 am)

Replying to: tonydi1 (May 04, 2010 4:35 pm)
If noise is with a cold engine and goes away hot, maybe infamous piston slap.

#15 of 15 Re: rocker or lifter noise on engine start [gonogo] by tonydi1

May 06, 2010 (5:26 pm)

Replying to: gonogo (May 06, 2010 8:05 am)
I am not sure what piston slap is but yesterday when it started the oil psi went over 80psi for a few mins then went to 40 when i put it into gear it went back to over 80 it fluxuated back and forth a couple of time and then staied at 40 at the time the lifter of valve noise was louder that normal i didnt use the truck this morning I called a repair shop to drop it off tonight when I started it to night outside temp was 70 it still had valve noise but nothing like yesterday i thought yesterday it was going to blow

Messages Page 2 of 2

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