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  1. Met454

    Iac issues

    I have a 1989 with a tbi 454 that has high idle due to frozen open iac valve. Replaced it and no change. With the air cleaner lid off, the vacuum leak through the iac is deafening. Instructions said to take truck out and go over 40 mph to reset. Didn’t change. Way Down on power also. Any tips on...
  2. Met454

    Instrument cluster issues

    Hello. Brand new member. Trying to get a 1989 4x4 Silverado 3500 back on road after 11 years. Almost ready but when I turn on headlights or turn signals, various gauges either peg out or drop to zero. Figuring it’s a grounding issue and wanted some insight before I take the cluster out and clean...
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