2004 chevy tahoe makes a whistle?

290

Asked by Sep 01, 2016 at 10:44 PM about the 2004 Chevrolet Tahoe Z71

Question type: Maintenance & Repair

Recently I bought a used 04 Tahoe with 101k on it.
When I drive it I notice it has a whistling sound.
When I step on the gas it gets a little louder while I
let off the gas it gets less of a sound. I took it to
get  a diagnostic on it and they said the catalytic
converter is getting mad. Could that cause It to
make a whistle sound?   

3 Answers

25,635

"Getting mad?" Try complimenting it on a fine job it's doing, or buy it some chocolates... usually gets me out of the doghouse with the ol' lady. A plugged cat would give you performance issues, not to mention it would smell like rotten eggs. Try looking for a vacuum leak around your throttle body or air intake. Maybe you have an exhaust leak like around the donut gasket. I suppose if your cat is going bad it could put more pressure on the donut gasket.

1 of 1 people found this helpful.
290

Haha I'll try the chocolates thing sounds a lot cheaper lol... Thanks for the advice I'll take a look at throttle body and air intake... One time I was driving I spelt something like rotten eggs for a few seconds then went away.. Thanks !

25,635

Rotten eggs... that does point to a catalytic converter. If it is plugging up it will create additional backpressure in the exhaust which may be forcing its way out via the donut gasket or exhaust flange or who knows where.

Your Answer

Add photo

Related Questions

  • 2004 chevy tahoe makes a whistle? 3 answers

    Recently I bought a used 04 Tahoe with 101k on it. When I drive it I notice it has a whistling sound. When I step on the gas it gets a little louder while I let off the gas it gets less of a sound....

    2004 Chevrolet Tahoe Z71

    -

    Maintenance & Repair

  • 2004 Chevy Tahoe 1 answer

    I have a 2004 Chevy Tahoe, it's not leaking oil( that I know of) but the oil pressure keeps dropping, causing that dinging sound to come on, any suggestions on how to figure out what's wrong? Just...

    2004 Chevrolet Tahoe LS

    -

    Maintenance & Repair

  • 2004 chevy tahoe keeps dying

    My 2004 chevy tahoe keeps dying. The alternator tests fine and battery..ive noticed a couple times while driving the steering will lock up and wants to stall, ill turn it off and back on and usuall...

    2004 Chevrolet Tahoe LT

    -

    Maintenance & Repair

  • 2004 chevy' Tahoe ls

    So my truck all of a suden started to shake when I'm driving in the street..coming up for a stop.in the freeway it runs good..but I also notice a smell of gas coming out of the mofler...and it wais...

    2004 Chevrolet Tahoe LS

    -

    Maintenance & Repair

  • i have a 2004 chevy tahoe 5.3L V8 do you think the TPS causes the rpm to go high and not move any higher than 30mph 1 answer

    i have a 2004 chevy tahoe 5.3L V8 do you think the TPS causes the rpm to go high and not move any higher than 30mph

    2004 Chevrolet Tahoe LT

    -

    Maintenance & Repair

Tahoe

Looking for a Used Tahoe in your area?

CarGurus has 35,891 nationwide Tahoe listings starting at $1,000.

ZIP:

Search Chevrolet Tahoe Questions

Chevrolet Tahoe Experts

#1 Tom Demyan
Tom Demyan
Reputation 840
#2 Rowefast
Rowefast
Reputation 830
#3 Lucia Taylor
Lucia Taylor
Reputation 550
View All

Related Models For Sale

Used GMC Yukon
394 Great Deals out of 20,758 listings starting at $1,495
Used Chevrolet Suburban
270 Great Deals out of 20,111 listings starting at $1,195
Used Cadillac Escalade
212 Great Deals out of 11,013 listings starting at $2,900
Used Chevrolet Silverado 1500
2,070 Great Deals out of 183,306 listings starting at $1,900
Used Ford Expedition
378 Great Deals out of 22,002 listings starting at $1,500
Used Ford Explorer
804 Great Deals out of 62,406 listings starting at $495
Used Ford F-150
2,204 Great Deals out of 180,680 listings starting at $1,500
Used Toyota 4Runner
233 Great Deals out of 21,022 listings starting at $1,500
Used Jeep Grand Cherokee
893 Great Deals out of 70,380 listings starting at $500
Used Dodge Durango
275 Great Deals out of 19,977 listings starting at $999
Used GMC Yukon XL
229 Great Deals out of 12,929 listings starting at $1,495
Used GMC Sierra 1500
785 Great Deals out of 67,904 listings starting at $1,699
Used Toyota Sequoia
115 Great Deals out of 5,341 listings starting at $2,900

Used Cars For Sale

2017 Chevrolet Tahoe For Sale
94 Great Deals out of 19,371 listings starting at $37,445
2016 Chevrolet Tahoe For Sale
42 Great Deals out of 1,836 listings starting at $31,643
2015 Chevrolet Tahoe For Sale
55 Great Deals out of 2,850 listings starting at $27,049
2014 Chevrolet Tahoe For Sale
13 Great Deals out of 625 listings starting at $11,995
2013 Chevrolet Tahoe For Sale
38 Great Deals out of 1,359 listings starting at $9,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.