I have a 2005 GMC Envoy with the Denali package and the 5.3 liter V8, the engine sometimes makes an occasional clunk sound during idle. The RPM's don't move and no other side effects, any idea or history of he 5.3 V8 making this noise and does it mean anything?
515

Asked by Charles Oct 23, 2014 at 11:22 PM about the 2005 GMC Envoy 4 Dr Denali 4WD SUV

Question type: Maintenance & Repair

This usually occurs when its idling in park, once in a while you hear it a low speeds but again doesn't affect performance or anything else. I know its a 9 year old engine and has 84K on it, otherwise its flawless, power is awesome on it.

2 Answers
56,620

TransAm77 answered 10 years ago

The 5.3 liter Vortec is a very good engine. You have very low miles for the year. I've seen them at 300,000 miles so as long as you maintain it you should have a lot of life left in it. As far as the clunk, where is it coming from? If it's under the hood do you notice it when the A/C is on? Or does it do it all the time?

Mark helpful
6,865

rst429 answered 10 years ago

Does it make that same in neutral? or does it make it at low RPM's shifting between rev. and drive?? NO,it's not your universal joint, but it could be your alternator bearings are going bad, will not effect performance, but very annoying....hope this helps

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

Shortcuts

Search GMC Envoy Questions

CarGurus Experts

  • #1
    FJ4072
    Reputation
    2,810
  • #2
    NITROGLORY1
    Reputation
    1,780
  • #3
    Ria Gonzalez
    Reputation
    870
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Yukon
14 Great Deals out of 904 listings starting at $4,555
Used Chevrolet Trailblazer
17 Great Deals out of 1,289 listings starting at $18,495
Used GMC Sierra 1500
132 Great Deals out of 6,515 listings starting at $3,975
Used GMC Envoy XL
1 listing
Used Chevrolet Tahoe
11 Great Deals out of 891 listings starting at $12,900
Used GMC Canyon
30 Great Deals out of 1,253 listings starting at $5,995
Used Chevrolet Silverado 1500
222 Great Deals out of 5,872 listings starting at $2,975
Used Ford F-150
320 Great Deals out of 13,991 listings starting at $1,712
Used Ford Explorer
78 Great Deals out of 2,100 listings starting at $3,995
Used Chevrolet Corvette
22 Great Deals out of 1,084 listings starting at $15,000

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. Content will be removed if CarGurus becomes aware that it violates our policies.