Last post on Aug 13, 2012 at 7:17 PM
You are in the Chevrolet Silverado & GMC Sierra
What is this discussion about?
Chevrolet Silverado 1500, GMC Sierra 1500, Chevrolet Silverado 2500, GMC Sierra 2500, Chevrolet Silverado 3500, GMC Sierra 3500, Exhaust, Truck
#9 of 48 Re: 08 denali exhaust syste [pawngod]
Jun 30, 2008 (1:14 pm)
would adding a volant cai void the warranty? No, but it would add to the noise in the cab while not improving much on anything.
i also want to remove the front bumper license plate holder as i dont need it in okla. Isn't the plate holder molded as part of the bumper?
tranny seems funky
Yeah GM hasn't gotten the programming right on the 6 sp auto.
curious what that muffler looking thing is at the passenger rear tire
If it's smaller than the muffler it's probably a resonator and will be removed if installing a catback which again doesn't do much except increase incab noise.
#10 of 48 re: adding oxygen sensor [tigerpwr]
Jun 30, 2008 (1:18 pm)
You can buy a fake O2 sensor online which will give a false reading to the computer at all times without affecting performance. This one fake O2 sensor should be enough so as not to be concerned with the other exhaust manifold.
Course if you're concerned about passing emission testing well you can forget that.
#11 of 48 EGR System Failure, '95 silverado 5.7l
Jul 08, 2008 (3:19 pm)
I'm kinda curious as to how involved troubleshooting an "egr system failure" code on my truckis. As the truck is pushing 14 years old i figure this kinda stuff happens but i dont wanna tear into it completely blind. If anyone has any tips or ideas as to what the most common causes are, Lemme Know! i just put a new O2 sensor in a month ago so thats not it. The damn check engine light comes on and goes off sporadically so i figured it was just the gas cap leaking but the clown at O'reilly's says this is the problem, whatever. Any Help would be appreciated.
#12 of 48 re: adding oxygen sensor [obyone]
Jul 13, 2008 (8:50 pm)
thanks for the tip, I'll have to look into that, Stacks
#13 of 48 Re: EGR System Failure, '95 silverado 5.7l [cowboycadillac]
Jul 14, 2008 (7:39 pm)
check for leaks aroung your intake manifold, i have the same problem with the check engine light going on and off and a mechanic told me to check for that. I haven't had time to check yet. He said just spray water with a little bit of soap aroung the intake while its running.
Sep 04, 2008 (12:27 pm)
i have a 2003 sierra 1500 and i was wanting to do something with my exhaust, possibly 3 inch straight pipes. I live in saskatoon, and i was wondering where the best place would be to go to do something like that! I just cant stand not being able to hear my truck roar when i drive, its just too quiet.
#15 of 48 Re: Exhaust [alaska49]
Sep 04, 2008 (3:02 pm)
3" straight pipes will get you a lot of sound but a loss in performance also due to lack of restriction. Any muffler shop should be able to do this for you and throw on a couple of glass packs. There are other alternatives but they are expensive.
#16 of 48 skill saw cutting metal?
Sep 09, 2008 (5:48 pm)
I HAVE A 07 CHEV 2500 DURAMAX. 25K MILES. WHEN TOWING MY 5TH WHEEL UP HILL THE SKILL SAE SOUND STARTS. IVE HAD IT IN 3 TIMES TRYING TO FIND PROBLEM (NO LUCK). THIS TIME I TOOK THE TECH WITH ME WITH COMPUTOR. SAME SOUND BUT NO READINGS. NOW THEY WANT TO TAKE MANIFLOD APATR AND REPLACE GASKETS. SOMETHING ABOUT NO ENOUGH PRESURE SO THE TURBO WILL WORK. I FEEL IAM GETTING THE OLD R&R ROUTINE.
ANYONE ELSE HAVING THIS NOISE PROBLEM? ITS SO LOUD WHEN I GO BY SOMEONE THEY LOOK AT ME AND GO????????
#17 of 48 '03 Silverado Z71 w/ 5.3 liter engine.
Oct 20, 2008 (4:31 pm)
This is a weird one .. hopefully someone can give me suggestions:
Just recently (starting last month) .. when I park truck in garage (its shut off) ... after 10 minutes... I would hear a BANG noise - consistantly each evening .. I was not sure what it was .. so I stayed under truck each night .. and sure enough - after approx 10 minutes .. I would hear a single BANG - pretty loud.
After monitoring this .. I notice the bang is coming from muffler.
So I hear a single loud BANG after my truck(turned off) sits for 10 minutes.
Any ideas ? The truck runs and sounds fine .. just a BANG after truck sits for 10 minutes .. this is consistant behavior.
I am hoping someone has seen this before ?
Truck is almost 6 years old - 25K miles - original exhaust.
#18 of 48 Re: '03 Silverado Z71 w/ 5.3 liter engine. [balich]
Oct 20, 2008 (4:53 pm)
Following what you stated that the sound is coming from the muffler, the only thing that's in the muffler is metal and fiberglass. So assuming that the metal is cooling the sound is from the metal contracting while cooling. It could be that one of the baffles is cracked causing more noise than normal or making it more noticeable.