98 GMC Sierra Transmission problums

Asked by Dustin Feb 18, 2015 at 10:57 PM about the GMC Sierra 1500

Question type: Maintenance & Repair

Hello, I have a 98 Sierra 2WD with a 5.7 in it. The truck has 72,000 miles on it. The
engine about 3,000 on a GM crate motor. About 4 days ago I started hearing a horrible
whining sound( like metal on metal) intermittently coming from the transmission area.
took it to a local trans shop and was told it sounded like a cracked flywheel. I pulled
the trans and flywheel and the flyeheel is clean(except the bolt holes seem to be a bit
wallered out. Heres the thing, the sound is there and loud when you first start the
truck. Once it warms up the noise goes away at idle and comes back when
accelerating. while driving if I let off the gas the noise stops. Where do I go from here?
Do I put a new flywheel in anyway? Is there something I need to check 1st?

3 Answers

Your Answer:

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 6,964 nationwide Sierra 1500 listings starting at $3,975.

Postal Code:

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,810
  • #2
    dragonflyoffshore
    Reputation
    11,750
  • #3
    John Saffrahn
    Reputation
    11,690
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
215 Great Deals out of 5,894 listings starting at $3,995
Used Ford F-150
314 Great Deals out of 15,157 listings starting at $1,712
Used GMC Sierra 2500HD
19 Great Deals out of 1,636 listings starting at $12,900
Used RAM 1500
541 Great Deals out of 15,532 listings starting at $5,000
Used Toyota Tundra
39 Great Deals out of 1,171 listings starting at $6,996
Used Chevrolet Silverado 2500HD
22 Great Deals out of 1,223 listings starting at $9,990
Used GMC Yukon
10 Great Deals out of 732 listings starting at $5,998
Used Toyota Tacoma
54 Great Deals out of 1,053 listings starting at $8,708
Used Dodge RAM 1500
7 Great Deals out of 69 listings starting at $1,995
Used GMC Sierra 1500 Limited
15 Great Deals out of 160 listings starting at $19,500
Used Chevrolet Tahoe
15 Great Deals out of 757 listings starting at $5,995
Used Ford F-250 Super Duty
27 Great Deals out of 1,175 listings starting at $8,995
Used GMC Canyon
18 Great Deals out of 1,300 listings starting at $7,495
Used RAM 2500
53 Great Deals out of 2,155 listings starting at $14,998
Used Dodge Charger
39 Great Deals out of 628 listings starting at $4,888

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.