1988

  1. S

    What is proper power steering pump bleeding procedure? Nothing seems to work!

    Just replaced my leaking pump, pulley, and high pressure line on my 88 C1500. I jacked the front wheels off the ground filled the PS pump up to the cold full line and with the engine OFF turned the wheel side to side bump to bump probably 200 times, I refilled the fluid occasionally but it...
  2. J

    1988 Cheyenne C1500 ReBuild

    Hello all I have a 1988 Cheyenne 4.3l 5 speed single cab long bed, that the left front corner was hit, I purchased a 1992 Cheyenne 4.3l auto for parts as I need to change the doghouse, I assume the parts with interchange, as that is what I was told by the wrecking yard, any advise or...
  3. S

    “Duramax fan”

    Hi everyone I’ve been reading up on this forum about the different cooling fans available for our trucks. It’s been a mixed bag but it sounds like there’s a fan out there called a duramax fan, it has 9 blades, is this something I could find at a junk yard? And if so what engine/models. What...
  4. J

    Ideas needed for 1988 GMC C1500 longbed restore

    Hello- new to forum. Just bought 88 C1500 that has been sitting up untouched in a garage for 18 years. It started up when I poured a bit of gas in Carb. Body is in good condition with no rust. Good and roof has some paint fading/oxidation. I am going to change...
  5. mint88

    Mystery Wires 5.7 350

    I own a 1988 C1500 that originally had a 305, but I swapped it to the 350 and have a couple mystery wires. Any guesses? More pictures will be in the comments. Having a hard time uploading other pictures, so here is a link. Thanks!
  6. mint88

    1988 C1500 5.7

    She has been my baby. I'm only 19, so I still have quite a bit to learn. This truck was a college gift from my grandparents, and it has probably been one of the greatest things in my life. This truck has had quite a few interesting experiences. Anywhere from mid-highway control arm swap, all the...
    • mint88
    • Thread
    • 1988 1988 c1500 lwb 2wd 5.7l 350 5.7 c1500 tbi
    • Replies: 11
    • Forum: Member Trucks
  7. mint88

    1988 5.7 Swap

    Hey, About a year ago, I did an engine swap on my 1988 C1500 from a 5.0 to a 5.7, and it mostly went well. However, there are a couple things I have not been able to work out. One thing is that it stalls every now and then. It'll happen when I am breaking, in park, accelerating, or whenever it...
  8. M

    1988 GMC K1500 Fuel Pump Relay Wiring -- Need Urgent Help

    So, I got this 1988 GMC Sierra SLX a year and a half ago, the original engine's oil pump got clogged up with some kind of silver flakes, radiator exploded, dropped a new engine in it, in the process of getting it dialed in and timed, a buddy advanced the timing way too far after I switched the...
  9. Oldschool88

    1988 305 - 1995 350

    I'm new here and I have a question. I have a 1988 GMC C1500 that had a 305. I recently swapped it for a 350 out of a 1995 Chevy K1500. This is my first swap so what do I need for a wiring harness? Will the harness match up with the truck as well? And is there anything else I need to do to get it...
  10. M

    Repairing the wiring harness in an 88 GMC K1500, need some help.

    Hey everybody, so I have an intricate job to do. I've been trying to fix my truck's starting-idling-dying issue after I dropped a new engine in it. A buddy of mine suggested replacing the fuel pressure regulator. So I let him do it. Little did I know there was gas on the intake. Then he...
  11. D

    1988 Factory Bucket Seats & Console Option

    Does anybody know how rare an option, code A50, is on a short bed regular cab 1988 Chevrolet Silverado?
  12. N

    350 TBI Woes

    Hey guys, Ive used this forum in the past and have been able to find answers for what I need but I cant seem to figure out whats going on with my truck now so I finally joined up so I can post. So heres what I got. Back in december I bought a 1988 k1500 350 TBI. Drove it home an hour and a half...

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