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Chevy S10 - GMC S15 and Sonoma Vibrations

87 messages,  Last post on Jan 05, 2012 at 5:22 PM

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

What is this discussion about? Chevrolet S-10, GMC Sonoma, Truck

Messages Page 9 of 9

#78 of 87 rattling by bmock

Dec 30, 2011 (3:46 pm)

The shield on the manifold? If ur talking about that no but it could be loose and maybe thats rattling i will check it out....another thing is there a spacer between the manifold and the downpipe? Because when we replaced the flex joint we just put some exhaust high temp. sealer on it

#79 of 87 Re: rattling [bmock] by hoodlatch

Dec 30, 2011 (5:57 pm)

Replying to: bmock (Dec 28, 2011 3:42 pm)
my dad's s-10 had a rattle going on after my son borrowed it to tow a camper from mo to sc. at first i thought it was the heat shield on the cat. as it turned out it was some of the tile inside the cat had come loose and i had to change out the catalytic converter.

#80 of 87 Re: rattling [bmock] by gonogo

Dec 31, 2011 (9:17 am)

Replying to: bmock (Dec 30, 2011 3:46 pm)
Yes , manifold shield. To check converter per Hoodlatch, just go under with cold cat and hit it , if loose innards it will rattle.

#81 of 87 rattling by bmock

Dec 31, 2011 (9:56 am)

I cut the cat out and put a straight pipe in it when i bought the truck but last night i took the down pipe loose and replaced the donut gasket and put alot of high temp. silicon on it and so far its not rattling anymore so i think its fixed...Thanks for all the help guys

#82 of 87 Re: rattling [bmock] by gonogo

Jan 01, 2012 (9:03 am)

Replying to: bmock (Dec 31, 2011 9:56 am)
No cat, how do you keep the check engine light from being on all the time.

#83 of 87 rattling by bmock

Jan 01, 2012 (9:12 am)

When i cut the cat out i took the o2 sensior out of the cat and welded it back into the exhaust so it still reads as it being there

#84 of 87 Re: rattling [bmock] by gonogo

Jan 02, 2012 (1:13 pm)

Replying to: bmock (Jan 01, 2012 9:12 am)
Can't be reading right with no cat, should put check engine light on if in fact the check light does work.

#85 of 87 rattling by bmock

Jan 02, 2012 (4:52 pm)

NO the check engine light works because when it was missing on one cyl. it came on after i cut the cat out it just runs a little bit fatter now

#86 of 87 Re: rattling [bmock] by gonogo

Jan 04, 2012 (9:13 am)

Replying to: bmock (Jan 02, 2012 4:52 pm)
Well the post cat sensor sends information to the PCM on how well the cat
efficiency is performing . No cat, poor performance, light on. Well who am I to say your light is on.
BTW you can buy a sensor to plug into the 02 sensor and the PCM still thinks there is a cat installed. I would never do it though.

#87 of 87 rattling by bmock

Jan 05, 2012 (5:22 pm)

I will just leave it alone it doesn't turn the check engine light on and it still runs great no problems i acutally think it running a little bit fatter helps it in the long run

Messages Page 9 of 9

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