Recent content by xx94Z71xx

  1. xx94Z71xx

    T-case wiring

    thought id come back and say i ended up just using an add-a-circuit fuse, and running a toggle switch and wire down to the actuator. works like a charm. and if im correct the 4Lo will still work properly because i left the trans case switch in place and connected, because PCM looks for ground in...
  2. xx94Z71xx

    T-case wiring

    hey guys... im having the same issue here. my 4x4 fuse keeps popping but its only when im driving and give it some gas!. i replaced the actuator with a known good one and the fuse still pops. im having a little trouble understanding the 3 wire transfer case switch. how would i go about bypassing...
  3. xx94Z71xx

    Engine loping

    you probably have a misfire. look for a down cylinder. check cap and rotor, wires , spark plugs etc...
  4. xx94Z71xx

    Black Oil coming down from torque converter or engine?

    yea i dont know anybody that uses the rubber gaskets anymore. the last felpro intake gasket set i got at local parts store didn't even come with the rubber pieces it came with a tube of black goo. the rubber ones tend to push out when you torque the intake down. i learned the hard way. i...
  5. xx94Z71xx

    1990 5.7 drivability issue

    my old 93 c1500 ran like this when the fuel pressure was low. was worse when cold. id check the fuel pressure.
  6. xx94Z71xx

    TBI problem, Truck won't stay running

    wow very helpful info thanks guys! kinda late to the party but ya know life n ****...
  7. xx94Z71xx

    TBI problem, Truck won't stay running

    im actually in the same boat myself. i wana tune my PCM for my new motor. dont run bad as is i just know i can get more. im pretty clueless with the TBI programming myself. its nothing like tuning an old holley.... IIRC a ALDL cable was around $50 to $60 on ebay
  8. xx94Z71xx

    Crack in head, can it be reused.

    If it were me i would get a set. good chances if the one is cracked and known prone to cracking, the other side was manufactured at the same time. in that case who knows if and when it will. Dont chance it. check ebay last time i looked a set of reman vortec heads were around $500.
  9. xx94Z71xx

    Still got stupid belt water pump chirp sound

    mine got squeeky for 2 reasons. one i had a really worn plastic tensioner pulley. went to a steel one and new belt and that took care of the chirp. with my old motor had a squeak i could not find it was driving me nuts. new belt cleaning pulleys no help. turned out the bearing spun inside a 9...
  10. xx94Z71xx

    89 5.7 running rich

    if the egr is not staying closed during normal operation then that could be your issue. you could block it off to test it with a block off plate.if you still can get a video send it to my email, i could help better.
  11. xx94Z71xx

    89 5.7 running rich

    put a vacuum gauge on it, when its idling rough. should be around 18 - 20hg with a stock cam. its been a while but i think i used the canister purge valve fitting on the tbi to test vacuum. turning the AC puts a good load on the engine, so it should make the problem worse. when you looked at the...
  12. xx94Z71xx

    89 5.7 running rich

    yea thats the chart i used. does the truck idle poorly almost right away? or does it take a little bit of driving for it to happen? i have seen EGR valves that get stuck open and cause a leak, cause the pintle gets all caked up with carbon. i would stark looking for vacuum leaks. i know u said...
  13. xx94Z71xx

    89 5.7 running rich

    when my fuel pump was low on pressure due to a leak years ago, it got terrible mileage and smelled rich, i assumed it was from the lean condition and the computer trying to compensate by adding more fuel. as soon as it was repaired it went back to normal. correct me if im wrong. im more of a...
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