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  1. Z

    AC Delco Iridium gap size (should they be gapped?)

    I know it should be .040 but I bought the original equip plugs and the gap was about .030. I opened them up to .040 but I swear the fuel econ display shows less on takeoffs and up hill with cruise control. Should I have not gapped them? Or could it be that I flattened or altered the electrode...
  2. Z

    Power to manual liftgate conversion

    I do not like the reliability factors of a power liftgate. Has anyone swapped the power out for a manual release? I am ok with the power raise/lower option. I just want to have a manual release so I can still operate with a dead battery. 2007 Tahoe Z71
  3. Z

    Rear Passenger Disk Brake Not Actuating

    2004 Tahoe Z71 225,000 miles When I bought the Tahoe, the right rear brake rattled as if it were loose. The caliper had a leaking piston seal. Replaced caliper, pads, hardware, and rotor. Bled brake, seemed fine. After a few stops, started squeaking when I apply brakes. Bled again. Drove...
  4. Z

    Digital Dual Climate Control Question

    My driver side knob will turn but the temp will just randomly go up a few degrees and then back down to where I started when its cold outside. I cant make a big change (such as from 60 to 80) without pushing in on the knob and turning very slowly. It seems there is some wear or bad connection on...
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