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11-06-2006, 11:28 PM
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Hummer Veteran
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Join Date: Sep 2006
Location: visalia ca./ Wingate N.C.
Posts: 89
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Exhaust Rattle
Did any body have a exhaust vibration rattle when you take off. I'ts seems to be on the low end just above idle when you take off . Rev up the engine nothing . Checked out the sheilds on the under side nothing loose. That's what it sounds like when you take off next to the drive in window it sounds kinda off tinny! Or should I just say honey the hummer (H2)needs new exhaust and be done with it .Any ideas, this has stock exhaust 2003 w/45,000 miles now??? One guy said it may be the cat. verter
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11-06-2006, 11:34 PM
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Banned
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Join Date: Jan 2003
Posts: 24,247
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Re: Exhaust Rattle
Quote:
Originally Posted by tazhog54
Did any body have a exhaust vibration rattle when you take off. I'ts seems to be on the low end just above idle when you take off . Rev up the engine nothing . Checked out the sheilds on the under side nothing loose. That's what it sounds like when you take off next to the drive in window it sounds kinda off tinny! Or should I just say honey the hummer (H2)needs new exhaust and be done with it .Any ideas, this has stock exhaust 2003 w/45,000 miles now??? One guy said it may be the cat. verter
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Check the clearance between the crossover and the stock UCP. It's very close there and a rattle can happen quite easily.
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11-06-2006, 11:39 PM
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Hummer Messiah
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Join Date: Feb 2003
Location: Federal penitentiary
Posts: 21,046
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Re: Exhaust Rattle
Quote:
Originally Posted by tazhog54
Did any body have a exhaust vibration rattle when you take off. I'ts seems to be on the low end just above idle when you take off . Rev up the engine nothing . Checked out the sheilds on the under side nothing loose. That's what it sounds like when you take off next to the drive in window it sounds kinda off tinny! Or should I just say honey the hummer (H2)needs new exhaust and be done with it .Any ideas, this has stock exhaust 2003 w/45,000 miles now??? One guy said it may be the cat. verter
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There is a TSB related to some rattling and the muffler on the 2003. Luckily, you don't need to hassle with it since the fix doesn't work (based on experience). Most often the rattling is from the factory cage or skid plate get squished into the frame/engine which causes rattling, especially at low rpms. I've had a bit of this with my new UCP and skid plate - but I've fixed it all by tweaking things underneath.
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11-06-2006, 11:42 PM
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Banned
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Join Date: Jan 2003
Posts: 24,247
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Re: Exhaust Rattle
Quote:
Originally Posted by CO Hummer
There is a TSB related to some rattling and the muffler on the 2003. Luckily, you don't need to hassle with it since the fix doesn't work (based on experience). Most often the rattling is from the factory cage or skid plate get squished into the frame/engine which causes rattling, especially at low rpms. I've had a bit of this with my new UCP and skid plate - but I've fixed it all by tweaking things underneath.
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If that doesn't work, lube the muffler bearing
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11-06-2006, 11:47 PM
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Hummer Veteran
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Join Date: Sep 2006
Location: visalia ca./ Wingate N.C.
Posts: 89
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Re: Exhaust Rattle
I tried the muffler bearing lube with some left over brake lite fluid maybe that's the problem
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11-06-2006, 11:48 PM
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Hummer Guru
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Join Date: Jan 2005
Location: Oregon
Posts: 4,321
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Re: Exhaust Rattle
Quote:
Originally Posted by tazhog54
Did any body have a exhaust vibration rattle when you take off. I'ts seems to be on the low end just above idle when you take off . Rev up the engine nothing . Checked out the sheilds on the under side nothing loose. That's what it sounds like when you take off next to the drive in window it sounds kinda off tinny! Or should I just say honey the hummer (H2)needs new exhaust and be done with it .Any ideas, this has stock exhaust 2003 w/45,000 miles now??? One guy said it may be the cat. verter
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I've heard that this can be life threatening and you need a new Hummer.
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If it has tires or testicles, you're going to have trouble with it
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11-06-2006, 11:51 PM
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Hummer Messiah
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Join Date: Feb 2003
Location: Federal penitentiary
Posts: 21,046
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Re: Exhaust Rattle
Quote:
Originally Posted by PARAGON
If that doesn't work, lube the muffler bearing
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I'd say he should just get under the rig with a trusty Millermatic 210. Weld everything you see to the frame. Then, get a couple 4x8 sheets of 1/8 plate and weld that on. Not only will it stop rattling, it'll float too.
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11-06-2006, 11:55 PM
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Hummer Veteran
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Join Date: Sep 2006
Location: visalia ca./ Wingate N.C.
Posts: 89
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Re: Exhaust Rattle
Ok send me some half tracks and i'll call it sherman Now i can run over those jeeps and sink them too!!
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11-07-2006, 12:02 AM
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Hummer Expert
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Join Date: Jan 2005
Location: easbumfuk
Posts: 859
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Re: Exhaust Rattle
Tazhog-
1) Double check the sheilds
2) Check to make sure exhaust pipe / muffler is not hitting anywhere when under a slight load. (Have wifey put on brake and give a little gas while in drive.) Dont crawl underneath to listen if you have a large insurance policy on yourself.
3) Catalytac (sp) converters could have some crust chunks laying in them.
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11-15-2006, 07:28 AM
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Hummer Veteran
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Join Date: Sep 2006
Location: visalia ca./ Wingate N.C.
Posts: 89
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Re: Exhaust Rattle
Thank you for the reply!! Finally figured out what was wrong ?? Drop the muffler and on top of the shield was crack ed,welded it up no more noise Now I can sneak up on those Jeeps
Last edited by tazhog54 : 11-15-2006 at 07:32 AM.
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09-20-2007, 04:27 AM
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Hummer Novice
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Join Date: Sep 2007
Location: Louisiana
Posts: 21
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Re: Exhaust Rattle
Mine is doing the same thing. 03/67k. I will drop mine this weekend and look for a crack in the shield. What did you weld it with? Mig, TIG, LH?
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09-21-2007, 09:14 PM
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Hummer Guru
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Join Date: May 2005
Location: Virginia Beach
Posts: 5,081
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Re: Exhaust Rattle
Quote:
Originally Posted by Dug
Tazhog-
1) Double check the sheilds
2) Check to make sure exhaust pipe / muffler is not hitting anywhere when under a slight load. (Have wifey put on brake and give a little gas while in drive.) Dont crawl underneath to listen if you have a large insurance policy on yourself.
3) Catalytac (sp) converters could have some crust chunks laying in them.
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09-22-2007, 05:49 PM
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Hummer Professional
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Join Date: Feb 2006
Posts: 368
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Re: Exhaust Rattle
Mine was rattleing by hitting that tubular guard thats located just south of the front skid plate. A few washers and longer bolts solved it.
--John
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2006 Hummer H2 Lux Series
www.JohnHasMoreFun.com
1/4 Mile 15.29@91.34mph
Mods:
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