Why do I hear this tapping noise?

Asked by Ed Apr 09, 2020 at 10:04 AM about the Chevrolet Tahoe

Question type: Maintenance & Repair

I have an 04 Tahoe with the 5.3 v8. I changed the
plugs and wires, and now I hear a noise. Like a
ticking, or tapping. It's not loud, but I hear it. At first
I thought a belt was making the sound because it's
repetitive. That didn't make sense though because
A) I wasn't working on them, and B) I changed the
belts, pulleys, and water pump last summer.  One
person suggested that maybe a plug was to tight
and it's getting hit. I'm not even sure if that can
happen.  Anyone have an idea?

7 Answers

30,945

I suggest reviewing the Cylinder Deactivation System. The base 5.3-liter V-8 uses an active fuel management system that deactivates cylinders to conserve fuel. The number one suspect.

30,945

I Suggest reviewing the Cylinder Deactivation System. The base 5.3-liter V-8 uses an active fuel management system that deactivates cylinders to conserve fuel. The number one suspect of lifter noise.

30,945

I suggest reviewing the Cylinder Deactivation System. The 5.3-liter V-8 uses an active fuel management system that deactivates cylinders to conserve fuel. The number one suspect of lifter noise.

30,945

I suggest reviewing the Cylinder Deactivation System. The 5.3-liter V-8 uses an active fuel management system that deactivates cylinders to conserve fuel. The number one suspect of lifter noise.

30,945

I suggest reviewing the Cylinder Deactivation System. The 5.3-liter V-8 uses an active fuel management system that deactivates cylinders to conserve fuel. The number one suspect of lifter noise.

30,945

I suggest reviewing the Cylinder Deactivation System. The 5.3-liter V-8 uses an active fuel management system that deactivates cylinders to conserve fuel. The number one suspect of lifter noise.

125,045

Wait until after dark. Start the engine and raise the hood. You might be hearing an ignition (spark) leak. If that's the case you'll see the sparking in the dark. Look closely at the area of the engine bay where you hear the noise. Hope that helps! Jim

Your Answer:

Tahoe

Looking for a Used Tahoe in your area?

CarGurus has 544 nationwide Tahoe listings starting at $6,999.

Postal Code:

Chevrolet Tahoe Experts

  • #1
    John Carson
    Reputation
    2,590
  • #2
    Rowefast
    Reputation
    1,790
  • #3
    G A Arne
    Reputation
    1,240
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Yukon
17 Great Deals out of 843 listings starting at $6,500
Used Chevrolet Suburban
12 Great Deals out of 434 listings starting at $6,989
Used Cadillac Escalade
10 Great Deals out of 808 listings starting at $5,998
Used Chevrolet Silverado 1500
99 Great Deals out of 7,523 listings starting at $4,500
Used Ford Expedition
17 Great Deals out of 544 listings starting at $3,429
Used Ford Explorer
50 Great Deals out of 2,762 listings starting at $4,310
Used Toyota 4Runner
25 Great Deals out of 1,211 listings starting at $6,888
Used Ford F-150
150 Great Deals out of 11,460 listings starting at $100
Used Dodge Durango
39 Great Deals out of 893 listings starting at $5,900
Used Chevrolet Traverse
36 Great Deals out of 1,420 listings starting at $4,650
Used Jeep Grand Cherokee
96 Great Deals out of 4,047 listings starting at $2,499
Used GMC Sierra 1500
96 Great Deals out of 7,582 listings starting at $1,188
Used GMC Yukon XL
11 Great Deals out of 585 listings starting at $6,995
Used Dodge Charger
18 Great Deals out of 695 listings starting at $3,300
Used GMC Acadia
36 Great Deals out of 1,524 listings starting at $5,799

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.