I have a 97 Chevy C1500 5.7 litre engine. I recently changed head gaskets and had timing reset and other few things done. Now had a whining noise that was evident in the plenum box (fuel meter body at top of spider injector), so replaced the plenum gasket. It was a bit better, but obviously still leaking air, and will quickly get worse, Point is, I can not seem to get this plenum gasket to seal!! I am next attempting to clean the inside plenum box with brake cleaner, and then lube with a touch of Vaseline, then put the gasket back on. Hoping this finally gets it, but any thoughts would be great!

Asked by Apr 12, 2015 at 11:44 AM about the 1997 Chevrolet C/K 1500 Cheyenne RWD

Question type: Maintenance & Repair

1 Answer

109,945

Check the flatness of the lower and upper plenums where they seal I have seen a few of these warp making it impossible for a good seal. It also happens to the lower where they contact the head almost dead center of the lower manifold.

1 of 1 people found this helpful.

Your Answer

Chevrolet C/K 1500 Experts

  • #1
    Andrew Olsen
    Reputation
    4,000
  • #2
    John Saffrahn
    Reputation
    2,690
  • #3
    Rowefast
    Reputation
    2,290
View All

Related Models For Sale

Used GMC Sierra 1500
1,099 Great Deals out of 61,829 listings starting at $1,295
Used Ford F-150
3,061 Great Deals out of 230,779 listings starting at $1,300
Used Chevrolet C/K 2500
217 listings starting at $2,495
Used Dodge Ram 1500
312 Great Deals out of 10,752 listings starting at $1,950
Used Chevrolet Tahoe
830 Great Deals out of 40,286 listings starting at $1,900
Used Chevrolet C/K 3500
182 listings starting at $4,000
Used Toyota Tacoma
565 Great Deals out of 40,826 listings starting at $2,995
Used Chevrolet Camaro
390 Great Deals out of 31,490 listings starting at $3,000
Used Chevrolet S-10
8 Great Deals out of 1,143 listings starting at $950

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.