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  1. 1987 GMC Jimmy

    OE Seat Belts

    Do you have pics showing the differences by chance? Their tensioners in this era weren’t worth a damn with that big button that goes through the door pillar. And I guess those door mounted seatbelts they used for like model year 1990 and never again probably had some issues, too.
  2. 1987 GMC Jimmy

    Found a lead on a used engine, couple questions

    To answer HRPC, Edelbrock and GMPP have Vortec TBI intakes. They’re expensive, though. To answer OP, yeah your accessory holes are all the same. Personally, I’ve always liked v belts more, and the more I deal with serpentine, the more I like the v belts. It’s nice to not every accessory tied...
  3. 1987 GMC Jimmy

    Vince's TBI woes, progressive revelations, and tbi mods.

    I agree, distributor is public enemy number one at this point. Anything else is just kinda riding the coattails of that.
  4. 1987 GMC Jimmy

    Distributor not getting spark

    Is the distributor hot lead getting power? If not, the problem is separate from the distributor. If so, you’ll have to go back through and test everything. Arbitrarily throwing parts at an ignition system generally puts you in a worse position, especially if you replaced OEM-grade parts with...
  5. 1987 GMC Jimmy

    Vince's TBI woes, progressive revelations, and tbi mods.

    Ahh, there’s my soapbox. So if you had a scan tool and looked at the serial data in real time, you could watch the knock counts and see if it’s going crazy or not so much. Ideally, it’ll knock a couple times at startup, figure it out after a few seconds, and adjust accordingly. The self-test...
  6. 1987 GMC Jimmy

    best way to service power steering pump?

    And to go along with what I just said above, I think it makes sense to do this in your situation just like you’d use a higher viscosity oil in a tired engine.
  7. 1987 GMC Jimmy

    best way to service power steering pump?

    Nah, it’s very quick. The steering is unloaded so you just work it back and forth till it’s clear. I use universal fluid. It’s about as viscous as cooking oil, and some people here say to switch from the thick stuff to that, which I’m in that camp. I like it because it’s not viscous like Dex...
  8. 1987 GMC Jimmy

    best way to service power steering pump?

    I like to siphon the reservoir, disconnect the return, jack up the front, and turn the wheels lock to lock continuously while keeping the reservoir filled until it’s spitting out clean fluid. That way the pump’s not spinning with the engine and potentially going dry.
  9. 1987 GMC Jimmy

    Found a lead on a used engine, couple questions

    Huh? So they converted a post-‘95 vehicle and engine to TBI, the year stated here is wrong, the friend is mistaken (confusing TBI and CSFI/MPFI), or it’s A TBI long or short block with Vortec-era engine management stuff. Assuming it’s just a newer “Vortec 5700,” the improvements are a...
  10. 1987 GMC Jimmy

    Vince's TBI woes, progressive revelations, and tbi mods.

    I would still keep the OEM off to the side and rebuild it for later. I have a Spectra one, and they’re solid, but it’s not as stoutly built as OEM. Plus, those non-OEM ignition modules and pickup coils don’t exactly have a reputation for excellence.
  11. 1987 GMC Jimmy

    Vince's TBI woes, progressive revelations, and tbi mods.

    I don’t know the official displacement, upgrades, stock components, etc., but in a stock setup, the first thing that came to mind was oxidation on the distributor cap pins, especially if they’re the aluminum kind (always get brass). If the distributor is that worn, and not rusted, rebuild it...
  12. 1987 GMC Jimmy

    Speedo Bouncing under 20MPH

    Cable. It needs to be graphite lubricated, and you can use denatured alcohol to suspend the powder. I disconnect it at both ends and work it with a drill from the bottom while I pour from the top. Honestly, the grease would be a better lubricant in the short term, but you’d have to do it...
  13. 1987 GMC Jimmy

    Universal joint.

    The DANA/SPICER are about half the price online versus the store.
  14. 1987 GMC Jimmy

    High cold idle

    Agreed. I will say, though, once you get them dialed in, they’re great. At least until the next time...
  15. 1987 GMC Jimmy

    I could choke a GM engineer!

    I wanted to add some pictorial evidence for anyone who hasn’t come across this yet. Picture one is the broken junk, picture two is the fix. You can see it’s just enough hose clamped in there to join the steel cooling line with the fitting that goes into the head, and then I did the sealing tape...
  16. 1987 GMC Jimmy

    High cold idle

    Idle speed should begin dropping within a few seconds of startup, but I’ve never timed how long it takes to settle to about forty counts just sitting there.
  17. 1987 GMC Jimmy

    1977 clip ????

    The clip will, but the clip is the entire thing. The only reason I say this is because people confuse the cap and the clip.
  18. 1987 GMC Jimmy

    High cold idle

    ^^^ CTS is another. I’d want to see serial data to see if the sensor was sending back actual temp confirmed by a temp gun at the sensor site. That’s fifteen dollars that I’d rather not waste if you don’t have to. You could also see IAC counts. Most people don’t want to make the scan cable, and...
  19. 1987 GMC Jimmy

    High cold idle

    Try to do an IACV relearn before doing anything and see if that does anything. You jump the A/B diagnostic terminals, key on, wait 45 seconds, unplug the IACV connector, key off, jumper out, replug the IACV. You can also (gently) clean the carbon off the valve pintle and check for carbon packed...
  20. 1987 GMC Jimmy

    FS: Toyota Airbag Clockspring

    This is for a 2003-08 Toyota Corolla/Matrix and 2004-06 Scion XA/XB. I bought this for a friend who wanted to get rid of several DTCs on their Corolla, and they had a fault for stage two squib circuit open. They sold the car before I could fix this particular code, but I’d like $15 plus postage...
  21. 1987 GMC Jimmy

    Ticking on the driver side of my 84 K 20

    I was also wondering if it could be something jingling around in there or maybe something happening between the rotor and and caliper since braking seems to stop it, and maybe turning unloads it enough to stop the noise. How it changes with speed if it does at all would be a good clue.
  22. 1987 GMC Jimmy

    Ticking on the driver side of my 84 K 20

    Does it get faster as you drive faster?
  23. 1987 GMC Jimmy

    Best headlights to use, NOT LED

    4656XV/4651XV. And for my money, those are the best you can get. The filament lifecycle is rated the same as a standard beam where SilverStars are rated less and have been known to burn out prematurely.
  24. 1987 GMC Jimmy

    Temp gauge problems

    Could be the wrong sending unit with a different resistance range. The engine bay ground network has to be right, or it’ll read wrong. And then the wire can’t be chafed, which you already know. Mine’s set up perfectly, and it sits at three quarters to pegged when it’s warm. I’m eventually going...
  25. 1987 GMC Jimmy

    I could choke a GM engineer!

    I just had to deal with this gutting the circa late-80s rubber out of a GM cooling system. The car’s 31 years old so I would imagine that’s right around when they started that stupid shit. The connector had orange crust around it, and I knew that it was a part time leaker. It broke instantly. I...

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