2000 Chevy Tahoe Z71

KADIN123

MEMBER
2000 CHEVROLET TAHOE
V8
4WD
AUTOMATIC
88,000 MILES

I have a 2000 chevy tahoe z71 small issue when driving cold it accelerates fine when ir warms up it sounds like it reves up high but my tacmeter doent show that it is reving amy higher than it should it just sounds most noise coming from engine compartment like I said it runs fine cold but not warm 5.7 liter vortec what could cause this

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JACOBANDNICKOLAS

MECHANIC
108,117 POSTS

When warm and the engine revs (and the tach doesn't), does the vehicle still accelerate normally or does it miss, lose power, anything out of the ordinary?

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Sunday, June 12th, 2011 AT 3:51 AM

KADIN123

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8 POSTS

It does not have the same power as it does when cold it sounds more like a fan speed up it does not sound like a vortec rev it is not a knock or

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Sunday, June 12th, 2011 AT 3:59 AM

JACOBANDNICKOLAS

MECHANIC
108,117 POSTS

This is a tough one to call because the loss of power but the engine sounds like it is reving. I will tell you that these vehicles had a lot of trouble woth the insturment panel. They go bad. It almost sounds like the trans is slipping. Is the trans fluid clean?

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Sunday, June 12th, 2011 AT 4:01 AM

KADIN123

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8 POSTS

Not sure will check and get back with you if it is not I will change and see if that helps thanks for all of your help and time just want to get a second opinion or a good anwser thanks

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Sunday, June 12th, 2011 AT 4:05 AM

JACOBANDNICKOLAS