engine whining noise!

Asked by Jul 16, 2016 at 10:13 PM about the 2008 Chevrolet Avalanche LTZ

Question type: Maintenance & Repair

Days after changing the oil on my truck a very loud whining noise started to come from my engine . At first it sounded like if it was the belt and tensioners  but after i change them all the noise still there. After looking and paying attention the i tuck all the belts of and stared the truck and the noise was coming from the crankshaft pulley. could the oil i put on was the cause of these problem put 5W30? thank you!

4 Answers

46,385

The oil is not the problem. Is the crank pulley wobbling or is it running straight? Has a rock or other debris got trapped so that the balancer is rubbing on it? It is possible that either the harmonic balancer (crank pulley) has a problem or something is loose in the timing chain area. This may be serious, get it checked out.

1 of 1 people found this helpful.

the crank pulley is straight and i dont see any debris trap in the harmonic balancer.

46,385

Since you took the belt off and started it and the noise sounds like it is coming from the crank pulley this leads me to believe it is something behind the timing cover. This could be the oil pump or related to the timing chain or camshaft. I would have a mechanic take a look at it.

1 of 1 people found this helpful.
Best Answer

Thank you!!

Your Answer

Add photo

Related Questions

Avalanche

Looking for a Used Avalanche in your area?

CarGurus has 4,969 nationwide Avalanche listings starting at $2,495.

ZIP:

Search Chevrolet Avalanche Questions

Chevrolet Avalanche Experts

#1 Tom Demyan
Tom Demyan
Reputation 300
#2 David Scott
David Scott
Reputation 160
#3 Oscar Leon
Oscar Leon
Reputation 150
View All

Related Models For Sale

Used Chevrolet Silverado 1500
1,718 Great Deals out of 175,749 listings starting at $1,250
Used Chevrolet Tahoe
548 Great Deals out of 29,234 listings starting at $1,699
Used Ford F-150
2,191 Great Deals out of 206,316 listings starting at $1,499
Used Cadillac Escalade EXT
24 Great Deals out of 725 listings starting at $4,500
Used GMC Sierra 1500
822 Great Deals out of 68,199 listings starting at $2,484
Used Dodge Ram 1500
454 Great Deals out of 11,152 listings starting at $700
Used Toyota Tundra
440 Great Deals out of 34,312 listings starting at $2,700
Used Cadillac Escalade
239 Great Deals out of 11,197 listings starting at $2,495
Used GMC Yukon
374 Great Deals out of 18,226 listings starting at $2,950
Used Chevrolet Colorado
216 Great Deals out of 24,314 listings starting at $2,495
Used Dodge Charger
404 Great Deals out of 28,172 listings starting at $1,988
Used Honda Ridgeline
66 Great Deals out of 5,829 listings starting at $4,999
Used Chevrolet Suburban
323 Great Deals out of 19,720 listings starting at $2,000
Used Toyota Tacoma
541 Great Deals out of 40,814 listings starting at $2,495

Used Cars For Sale

2012 Chevrolet Avalanche LTZ For Sale
18 listings starting at $18,950
2011 Chevrolet Avalanche LTZ For Sale
31 listings starting at $13,995
2010 Chevrolet Avalanche LTZ For Sale
3 Great Deals out of 26 listings starting at $12,990
2009 Chevrolet Avalanche LTZ For Sale
22 listings starting at $12,000

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.