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  1. R

    Running a heavier oil

    Hello everyone, 98 GMC K1500, 5.7, 184K miles. My Truck runs well but has the annoying lifter tick. When I cold start it, it doesnt tick at all. After approx 10 minutes and the engine temp starts getting to 175 or so the tick starts. Im 99% certain its not a leaky exhaust gasket. Sound is coming...
  2. R

    Lowering a power window

    Hello! My 98 GMC K1500, 5.7L, drivers power window motor has given out. Ive checked powers and ground at the switch and its there when i press the switch. Motor gives a slight click when i press the switch. Passenger side works fine. I'll try to check it at the motor today. My question is, the...
  3. R

    Fuel pump retaining ring

    Hello all, 98 GMC K1500 5.7L. Im changing the fuel pump and wondering if anyone has an idea what the ring that locks the pump in place is called? and if I can get one. I've got the tank down and the ring is very corroded. Chunks are coming off of it. I cleaned it up best I could but now with the...
  4. R

    Power steering failed...again!

    98 K1500 SLE, 5.7L. My power steering pump failed today one year to the day I replaced it. Ive got warranty action going on with Rock Auto. Pump has all the fluid in it, just no assist, none. Same as the old pump but I bought the previous from local parts store. Am I missing something? The...
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    98 K1500 A/C leak diagnosis

    I have a 98 K1500 with the 5.7. Last summer (2022) I worked on the A/C and charged it after not working since i bought it. It blew cold, only for the charge to go away after about a week. It short cycled until the compressor never engaged again. Obviously i assumed a leak. Just this last friday...
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    Fuel pressure regulator leaking internally?

    Hello all, my 98 1500 stock 5.7L vortec (185k miles) started having long crank issues. Put a fuel pressure gage on it and when the key is turned on, the pressure jumps to 62-64. But as soon as the relay clicks the pressure drops to 0 within 15 seconds. Pulled the plenum top expecting to see the...
  7. R

    Hello from Utah

    Hello everyone, Just picked up my first GMC truck, its a 98, 6 1/2 ft bed, has the extra cab with the 3rd door. 5.7 ltr automatic and 4wd. Im currently replacing all the original front suspension parts. Runs good so after this should be just cosmetic stuff. As Ive been researching parts Ive...
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    EVAP/drive cycle

    Hello everyone. Just picked up my first GMC. Its a 98 Sierra K1500 with the 5.7 Vortec. Nice truck! Very happy with the purchase. Im trying to get it emission tested (utah) and cant seem to get the EVAP test to complete. No check engine light yet but the previous owner said it occasionally...

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