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  1. Y

    Need help finding short for electrical ground

    I can see the logic in how it could happen, but my expectation was that since the ground and neutral are tied together at the main panel box, it should still not happen. But nothing is ever foolproof, which is why I unplug pretty much everything when I leave the house....
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    What have you done to your square lately??

    Where are you finding 100LL? My British project car owers manual calls for "98 or higher leaded" in the owners manual....
  3. Y

    TPS readings

    Sometimes on the non-adjustable ones you can use a needlenose plier and bend the little arm that the throttle mechanism pushes on to get the readings in range. When you only get 3V at wide open, are you still reading 0.5 at full closed? If you tweak the arm to get 4.5 at wide open, you may...
  4. Y

    Cruise control vacuum line location

    Probably not to the steering column but down toward the brake pedal. The concept is that when you press the brake it releases any vacuum in the actuator immediately, the result being the throttle returns to the idle position so the cruise control isn't applying throttle when you're trying to stop.
  5. Y

    Airlift helper bag kit suburban

    I could be tempted (and am close enough for in person pickup) but I'm not sure I'd be able to make use of them since I've already got the 3/4 ton Suburban and havn't ever loaded it down enough to need an assist. Still a good price though....
  6. Y

    1987 350 tbi no start

    Fabulous - glad it was something easy (and not as expensive as other things could have become)!! If your original ignition module turned out to be OK, Zip-Loc bag it and toss it in the glovebox. Sometimes they just go bad unexpectedly (especially if they get hot and the heat transfer compound...
  7. Y

    Intermittent IAC issue 89 V1500

    Yes the spare is good one. The installed one does read correctly, plugging in the spare was a pure desperation play to force the ECU to give me as much fuel as it could, which was at least enough to idle up the shoulder. Once that spare one warmed up to the full under-hood ambient temp it...
  8. Y

    Intermittent IAC issue 89 V1500

    That was part of how I limped mine off a highway shoulder into a parking area 3 weeks ago - plugged in a spare CTS and just left it hanging loose, it should have run stupid-rich but instead got just enough fuel to idle (but not really drive) and was able to get off the state highway and avoid a...
  9. Y

    1987 350 tbi no start

    Your distributor is at least sending the pulse to the ECM - if you don't get a reference pulse from the distributor the injectors won't trigger at all. I'd test for spark on the coil-to-distributor high voltage lead - disconnect it from the cap and lay it near something grounded like a valve...
  10. Y

    Intermittent IAC issue 89 V1500

    How high is high? I'm asking because I was pretty convinced I also had a high idle based on how rough the switch from neutral to drive or drive to reverse was. With a data logging tool I confirmed it was actually pretty much dead on perfect at 750 which is what the computer is apparently...
  11. Y

    1987 350 tbi no start

    If you can see the fuel pulsing out of the injectors it shoule be enough to at least idle. This might be a time to hook up one of those remote start triggers to the starter and with the key on, crank it and check for spark from the coil secondary (but not the throttle body in case it does...
  12. Y

    1987 350 tbi no start

    I had mine do that and it turned out to be a bad pickup in the distributor, but your situation is different because you are getting fuel pulses which means the pickup is signaling the ECU. Ignition module inside the distributor might have been damaged electrically (with the neg. terminal...
  13. Y

    Front clip Replacement

    It looks like most of the front clip components from the 1981-1987 trucks are also the same looking at some of the part numbers on LMC. I don't see any difference in the 1987 truck fenders/hood to the 88-91 crew cab truck components which should be the same on the Suburban as well. Core...
  14. Y

    What have you done to your square lately??

    Wish I had seen this conversation when I needed to test my British project - could have saved me a lot of labor in terms of repulling and reinstalling the engine/trans assembly if I had realized I could strap it down to something solid and test it first. Instead I found out the transmission...
  15. Y

    Engine lift points

    I have one of those - it really does help. I had to pull and replace the engnie/tranmission as a single unit on my British car build, and you can't remove the front clip or core support on those so it has to go up and over, angle down while moving back and then come level again to get the back...
  16. Y

    Cutting hole in floor to replace fuel sender

    No you didn't miss it, I forgot to mention it. Both my firewall relay positions are populated - the other is a kickdown relay for the transmission according to the wiring diagram. Its been replaced in the past year or so and I also confirmed the secondary switch on the oil pressure sender...
  17. Y

    Cutting hole in floor to replace fuel sender

    If its that shallow than maybe it won't be as bad as I expected (the last one I did was on a Jeep and was very not amused when done). Any tips for disconnecting the threaded lines on top? The truck is stock height but has slightly taller tires because those were the only ones available as a...
  18. Y

    Cutting hole in floor to replace fuel sender

    Thats sort of how I got it from the gas station where it failed the first time to the parking area where it wouldn't be immediately towed/impounded last weekend. It will start up and run for a bit but get progressively worse like its running out of fuel - it cut out the second time a few...
  19. Y

    Cutting hole in floor to replace fuel sender

    It might run intermittantly, or it might not. I'm actually thinking its not the actual electric motor but either a broken or partially plugged pickup tube, a partially blocked sock or something like that. I'm pretty convinced its an in-tank problem since there is no secondary high pressure pump...
  20. Y

    Cutting hole in floor to replace fuel sender

    I think its less a question of "fix it right" and more a problem of servicability overall. Even a premium part with lifetime warranty can fail. And when it does, being able to do something about it becomes important. Right now my truck is stranded in an unpaved parking area 70 miles from the...
  21. Y

    What have you done to your square lately??

    I kind of hate to say it, but the easiest heater core replace I ever did was in a late 80's Ford. 6 screws behind the glovebox, take the 2 hoses off and the thing dang near fell out on the floor. Took longer to drive to the parts store to buy the replacement than it did to do the entire...
  22. Y

    Cutting hole in floor to replace fuel sender

    Surprisingly timely thread - I mentioned being careful with sparks and now I'm in the position of needing to do this exact thing on mine. I have no idea where to get some extra bed floor material to use as the cover. Dropping the tank 1st would be ideal, but can't be done where its currently...
  23. Y

    What have you done to your square lately??

    The most recent thing I've done with my square is arrange to get it towed.....again. I'm pretty sure it is simply cursed at this point. A car wash with holy water might be the next step....or it might just dissolve away.
  24. Y

    Cutting hole in floor to replace fuel sender

    I have not done that on mine, but will admit it seems reasonable (and would have made sense for the factory to put an access panel of some sort there). I'd be real nervous about doing it with the tank in place, cutting metal=sparks and sparks+gas_tank=bad_things.
  25. Y

    Fender antenna debacle

    I still listen to FM when I don't feel like hooking up a player to the AUX plug and such....cannot recall the last time i intentionally switched it to AM (sometimes hit the button by mistake and then flip right back to FM). I like to listen to music while driving, and the AM side here is all...

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