exhaust smell - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chappys4life · 03-23-2009, 10:17 AM

On my 82 c10 my exhaust smells. I am having a hard time explaining it cause its not a rich or lean smell. Never owned a car with a catalytic converter before but I know they can clog so I was wondering if mine needs replaced?

**78 Big10 454** · 03-23-2009, 11:00 PM

A bad cat generally smells like rotten eggs. I'd be under the truck and going through the entire exhaust system with a fine-tooth comb, looking for any and all leaks. Have you noticed any loss of power, especially under hard acceleration?

**old Rusty C10** · 03-24-2009, 09:48 AM

when the cat goes bad alot of times either the cat or the pipe directly before it will heat up red hot.. A bad alternator that is overcharging can also smell like rotten eggs

also if you either ran over a critter and knocked parts of it onto the cat or a critter crawled onto your exhaust and died , that can smell wonderful also, as will plastic that landed on the cat

JohnC · 03-24-2009, 11:27 AM

Quote:

Originally Posted by old Rusty C10

...or a critter crawled onto your exhaust and died , that can smell wonderful also...

Let's hope it's not that!

chappys4life · 03-24-2009, 01:01 PM

Well I crawled under and do not see any leaks or signs off exhaust issues. Y pipe looks darkish though. Since I just bought it a week ago its hard to say a loss of power or not.

chappys4life · 04-03-2009, 06:02 PM

any other ideas?

03-23-2009, 10:17 AM	#1
chappys4life Registered User Join Date: Oct 2008 Location: Austin, TX Posts: 65	exhaust smell On my 82 c10 my exhaust smells. I am having a hard time explaining it cause its not a rich or lean smell. Never owned a car with a catalytic converter before but I know they can clog so I was wondering if mine needs replaced?

03-23-2009, 11:00 PM	#2
78 Big10 454 78 Big10 454 Join Date: Jul 2008 Location: Pismo Beach, CA Posts: 838	Re: exhaust smell A bad cat generally smells like rotten eggs. I'd be under the truck and going through the entire exhaust system with a fine-tooth comb, looking for any and all leaks. Have you noticed any loss of power, especially under hard acceleration?

03-24-2009, 09:48 AM	#3
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,281	Re: exhaust smell when the cat goes bad alot of times either the cat or the pipe directly before it will heat up red hot.. A bad alternator that is overcharging can also smell like rotten eggs also if you either ran over a critter and knocked parts of it onto the cat or a critter crawled onto your exhaust and died , that can smell wonderful also, as will plastic that landed on the cat __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!! Last edited by old Rusty C10; 03-24-2009 at 09:49 AM.

03-24-2009, 01:01 PM	#5
chappys4life Registered User Join Date: Oct 2008 Location: Austin, TX Posts: 65	Re: exhaust smell Well I crawled under and do not see any leaks or signs off exhaust issues. Y pipe looks darkish though. Since I just bought it a week ago its hard to say a loss of power or not. Last edited by chappys4life; 03-24-2009 at 01:02 PM.

04-03-2009, 06:02 PM	#6
chappys4life Registered User Join Date: Oct 2008 Location: Austin, TX Posts: 65	Re: exhaust smell any other ideas?



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