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 How do you search for a exhaust leak?
#758922
10/18/06 03:10 AM
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Anonymous
Unregistered
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i just failed inspection for a leak in my exhaust
i have a 98 rodeo ls with 70k miles
anyone have tips to search out the leak?
also..the sound is much deeper now..
any advise be great
thanks
Last edited by fdu98; 10/18/06 03:11 AM.
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 Re: How do you search for a exhaust leak?
#758923
10/18/06 03:19 AM
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Joined: Apr 2002
Posts: 1,156
Body Damage is Cool
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I just feel for it. I keep the car running then hold my hand by the pipe/ muffler / cat, exc.
If the exhaust is cold you can use water and dish soap mix, from a spray bottle. It will make little bubbles from the leaking area when you spray it on. Works well when youÆre looking for air leaks on an air tank too.
Steve C
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Re: How do you search for a exhaust leak?
#758924
10/18/06 04:00 AM
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Joined: Apr 2004
Posts: 310
Mudrunner
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it depends where it is. did they say?
for example, you can crawl under there under the exhaust while your helper plugs the exhaust pipe end with a rag.
if everything is all tight, it'll usually load up real quick, if there is a leak there won't be much restriction and you often can *hear* where the leak is -- follow your ears.
1992 sohc trooper 3.2l v6 automatic . . . as is
i love a good intermittent electrical challenge. . .especially when it's someone else's.
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Re: How do you search for a exhaust leak?
[Re: trooperbc]
#758925
10/18/06 04:24 AM
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Joined: Feb 2005
Posts: 48
Getting the Wheeling Fever
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You can also see a grayish colored area around the leaks. Sometimes very faint but there nontheless. Exhaust tubing around here turns brown right away so that gray coloring stands out. Check rusted areas on muffler, especially around crimps.
91 T, 2.8 A/T, Weld Wheels, 33 A/Ts, 3? Calmini lift & stabilizer, OME leafs & shocks, ARB lockers F&R, 5.38s F&R, Superwinch Hubs, full roof rack, brush guard, One Bad rear bumper, Hella fog/driving lights
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Re: How do you search for a exhaust leak?
#758926
10/18/06 04:50 PM
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Joined: May 2002
Posts: 671
Rock Warrior
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In cold, damp weather (may not happen where some of you live) you can also look under the vehicle when it is first run for the day and usually see condensation at the leak site.
Jay
1991 Trooper - DEAD! 2.8 V6, 5 spd, 4WD, HD clutch, 2.25" exhaust, EPROM Chip, KC/Hella, Aisin hubs, Rancho 9000X's, Panasonic/Infinity/Alpine My Pics
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Re: How do you search for a exhaust leak?
#758927
10/18/06 09:11 PM
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Joined: Jan 2002
Posts: 1,111
Body Damage is Cool
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Start off checking the places that are prone to leakage:
where two flanges meet (gaskets)
flex pipe
bottom of the muffler
in my case where the exhaust pipe meets the muffler is cracking around the weld
when looking for a container to hold drained brake fluid, find a container that is different from the beverage you are currently consuming.
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Re: How do you search for a exhaust leak?
#758928
10/19/06 04:18 PM
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Joined: Jan 2005
Posts: 899
Rock Warrior
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i just failed inspection for a leak in my exhaust
i have a 98 rodeo ls with 70k miles
anyone have tips to search out the leak?
also..the sound is much deeper now..
any advise be great
thanks Use a piece of tubing (rigid, like brake line) attached to a rubber hose. Stick hose in ear. Listen for whistling noises at joints (collector gaskets, where manifolds join to downpipes, etc).
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Re: How do you search for a exhaust leak?
[Re: Fujisawa_Rob]
#758929
10/19/06 04:37 PM
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Joined: Jan 2002
Posts: 1,111
Body Damage is Cool
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The Y pipe went on my 99 amigo two years ago. I remember a few other folks talking about the same thing in a relative time frame. I don't remember what it was about the pipe, just that I replaced it. <img src="/forums/images/graemlins/drunk.gif" alt="" /> Edit: Now I remember... My driveshaft let go on and killed it.
Last edited by HCMP; 10/19/06 04:38 PM.
when looking for a container to hold drained brake fluid, find a container that is different from the beverage you are currently consuming.
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