2004 chevy tahoe makes a whistle?

250

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

25,155

"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.
250

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 !

25,155

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 33,115 nationwide Tahoe listings starting at $1,500.

ZIP:

Search Chevrolet Tahoe Questions

Chevrolet Tahoe Experts

#1 Tom Demyan
Tom Demyan
Reputation 810
#2 Rowefast
Rowefast
Reputation 800
#3 Lucia Taylor
Lucia Taylor
Reputation 530
View All

Related Models For Sale

Used GMC Yukon
422 Great Deals out of 20,544 listings starting at $1,495
Used Chevrolet Suburban
291 Great Deals out of 19,316 listings starting at $1,995
Used Cadillac Escalade
200 Great Deals out of 10,980 listings starting at $2,500
Used Chevrolet Silverado 1500
1,966 Great Deals out of 183,481 listings starting at $1,495
Used Ford Expedition
410 Great Deals out of 24,112 listings starting at $1,500
Used Ford Explorer
919 Great Deals out of 65,068 listings starting at $799
Used Ford F-150
2,181 Great Deals out of 194,801 listings starting at $290
Used Toyota 4Runner
238 Great Deals out of 19,390 listings starting at $1,500
Used Jeep Grand Cherokee
1,097 Great Deals out of 73,573 listings starting at $1,200
Used GMC Yukon XL
233 Great Deals out of 12,596 listings starting at $1,495
Used Dodge Durango
279 Great Deals out of 21,251 listings starting at $1,375
Used GMC Sierra 1500
805 Great Deals out of 68,894 listings starting at $1,800
Used Nissan Armada
166 Great Deals out of 9,206 listings starting at $2,991

Used Cars For Sale

2017 Chevrolet Tahoe For Sale
61 Great Deals out of 16,766 listings starting at $38,588
2016 Chevrolet Tahoe For Sale
47 Great Deals out of 1,976 listings starting at $31,643
2015 Chevrolet Tahoe For Sale
53 Great Deals out of 2,563 listings starting at $24,995
2014 Chevrolet Tahoe For Sale
16 Great Deals out of 590 listings starting at $11,995
2013 Chevrolet Tahoe For Sale
45 Great Deals out of 1,311 listings starting at $10,995

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.