common issues with vortex v6

Asked by May 17, 2017 at 03:11 PM about the 1997 Chevrolet Blazer 4 Door 4WD

Question type: Maintenance & Repair

3 Answers

18,675

Lower intake gasket.

18,675

General Motors Vortec line of V-6 engines commonly suffer from problems with excessive oil consumption and engine knocking. Knocking problems are particularly prevalent in Vortec engines used in trucks and SUVs built during the late 1990s and early 2000s. Some Vortec V-6 engines also develop problems with their camshafts, though this seems to be more common among Vortec engines used in industrial applications rather than in passenger vehicles. Severe knocking issues are most common to the L35 and LF6 Vortec V-6 engines built between 1996 and 2002, while oil consumption issues are more common in the LU3 engine built from 2004 to 2009. Owners of vehicles with Vortec engines affected by knocking issues report that the problem seems to occur after the engine has had some time to warm up or during acceleration. The cause of the knocking issue has not been definitively determined, but some owners report that replacing the pistons in the engine may address the issue. Owners with newer Vortec engines that consume excessive oil report that these engines may consume up to two quarts or more of oil between service intervals. The Active Fuel Management selective cylinder shutdown system is suspected to be one of the causes of this issue, and some owners have reported that disabling this feature can reduce oil consumption substantially.

18,675

Other than some headers there are not many go fast parts.

Your Answer

Blazer

Looking for a Used Blazer in your area?

CarGurus has 21 nationwide Blazer listings starting at $3,998.

Postal Code:

Chevrolet Blazer Experts

  • #1
    Andrew Olsen
    Reputation
    2,030
  • #2
    yetilikesbeer
    Reputation
    1,360
  • #3
    Rowefast
    Reputation
    1,030
View All

Related Models For Sale

Used Chevrolet Tahoe
8 Great Deals out of 724 listings starting at $4,995
Used Chevrolet S-10
8 listings starting at $5,495
Used GMC Jimmy
19 listings starting at $1,980
Used Ford Bronco
2 listings
Used Jeep Grand Cherokee
90 Great Deals out of 2,802 listings starting at $1,500
Used Chevrolet Suburban
8 Great Deals out of 391 listings starting at $5,871
Used Chevrolet Camaro
807 listings starting at $13,404
Used Ford Explorer
51 Great Deals out of 1,458 listings starting at $2,800
Used Jeep Wrangler
108 Great Deals out of 1,603 listings starting at $3,995
Used Ford F-150
526 Great Deals out of 10,140 listings starting at $1,400
Used Jeep Cherokee
105 Great Deals out of 6,712 listings starting at $11,750

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.