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 Standard Cab SB

Question type: Maintenance & Repair

1 Answer


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 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • 96 Chevy C1500 5.7L Vortec Truck won't start, Replaced Fuel Pump, Filter & Has Spark. 78 answers

    Hey everyone, I have a 1996 Chevy C1500 with a 5.7L Vortec, I got the truck recently and was told it just needed a Fuel pump, I replaced the Fuel pump, and the Filter, also the pump turns on and there...

    Chevrolet C/K 1500


    Maintenance & Repair

  • 97 chevy 5.7 cam crank relearn 45 answers

    When replacing the distributor on the 5.7 Chevy Vortec enginen, the instruction that came with the Distributor said that a code P1345 would be set, and that a Cam Crank relearn must be performed. Us...

    1997 Chevrolet C/K 1500 Silverado Standard Cab LB


    Maintenance & Repair

  • 1998 Chevy K1500 not getting fuel. New pump, filter, spark plugs, rotor, relays 35 answers

    I replaced the fuel pump and fuel filter. I put on new plugs and wires. Also replaced the cap and rotor. Ran for about a month, then it stopped getting fuel again. I sprayed starter fluid into i...

    1998 Chevrolet C/K 1500 Silverado Extended Cab LB 4WD


    Maintenance & Repair

  • 97 Chevy C1500 idles great, runs rough when put in gear 10 answers

    I've got a '97 C1500 that's been running great for me for the past 6 months. Just the other day I drove it down to my folks place and when I pulled in the driveway the engine started running rough. ...

    1997 Chevrolet C/K 1500 Cheyenne Standard Cab Stepside SB 4WD


    Maintenance & Repair

  • no start condition 40 answers

    Guys, HELP! 2 month old problem. I have a 96 chevy van 350 v8, 120,000 miles. Runs perfectly (when its running). Than at ANY point (hours or days) after i shut it off it may or may not start. If i l...

    1996 Chevrolet Chevy Van 3 Dr G1500 Cargo Van


    Maintenance & Repair

Search Chevrolet C/K 1500 Questions

Chevrolet C/K 1500 Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 2,570
#2 John Saffrahn
John Saffrahn
Reputation 2,260
#3 Rowefast
Reputation 1,190
View All

Related Models For Sale

Used GMC Sierra 1500"
1,048 Great Deals out of 56,507 listings starting at $2,300
Used Ford F-150"
3,256 Great Deals out of 217,212 listings starting at $1,000
Used Chevrolet C/K 2500"
288 listings starting at $1,995
Used Dodge Ram 1500"
527 Great Deals out of 13,941 listings starting at $995
Used Toyota Tacoma"
653 Great Deals out of 30,629 listings starting at $2,850
Used Chevrolet Tahoe"
1,146 Great Deals out of 36,615 listings starting at $1,995
Used Chevrolet S-10"
9 Great Deals out of 1,809 listings starting at $1,749
Used Chevrolet C/K 3500"
309 listings starting at $5,600
Used Chevrolet Camaro"
826 Great Deals out of 39,074 listings starting at $2,650