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    More horsepower

    I haven't messed with the TBI spacers yet. TBI isn't built for huge power. a mild cam, a little Tuning (or bump your timing a little), free flowing exhaust, a little fuel pressure bump, etc is about all you can do without swapping heads. turning your 210hp into 235-250hp may not be a big lift if...
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    What's the good AC compressor these days?

    ac work isn't as complicated as you'd think. you can borrow flush kits, manifold gauges, and vaccuum pumps from the auto parts store. watch some YouTube videos and jump in.
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    AC Compressor Change - Accumulator/Orifice Tube Criticality

    If the compressor hadn't fried yet, and was just leaking, it may be fine. Does the line get frozen where the orifice tube is? That would indicate a clog if so.
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    Automatic transmission newbie asking basic questions

    depends on your tire size and gearing, how bad it will hunt. I will say that I keep mine in D unless I am consistently at 60mph or above to limit hunting and torque converter locking and unlocking issues. Mine is a 1990 v1500 burb with 700r4 and 3.73 rolling on BFG 33in (really ~32in). but I...
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    Sniper Coolant Temperature Probe Location?

    the dash gauge reads temp in-between cylinders 1 and 3 on that single wire sensor in pic 3. not sure what you disconnected up by the thermostat housing....maybe somebody had a second. aftermarket gauge for some reason?
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    What's the good AC compressor these days?

    also flush the lines and replace the orifice tube if the compressor died.
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    Blows Hot Air When Off?

    on just the vent setting, the air comes in hotter than ambient on my 1990 suburban, even on the highway cruising. usually it is about 8-10 degrees warmer. I attribute it to old tech inefficiencies and old door seals on the climate control system. but I don't have a lot if air flow coming in if...
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    Windshield wiper and washer problem

    I'd find the wiring diagram and see where there is common power or potential for a component to fail that would power them both at the same time. maybe it goes through a control module that is bad, or maybe it is all on the wiper motor for those years and the motor is bad? I'm only familiar with...
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    350 TBI high idle

    yes, it will eventually learn the iac position. the quick way to do it is to force it closed by jumping A and B on the ALDL with key on. then it knows what fully closed is and where 0 is. if you messed with the idle stop screw, just make sure your IAC counts are in the 5-30ish range warm and at...
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    350 TBI high idle

    idle will always jump when you return to park bc the load comes off the engine. it could jump to maybe as high as 950-1000rpm. but should settle down fairly quickly and likely be in the 750rpm range fully warmed on a stock computer chip. in gear idle will be in the 525rpm range, also stock chip...
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    350 TBI high idle

    so much hate, Jack34, so much hate. I realize you had a bad experience with TBI that you couldn't get resolved and sold it. Like mom always said, if you aren't helping things you are hurting things. just let it go, stop trolling the TBI posts, and go enjoy your carb
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    350 TBI high idle

    check to make sure the vac lines are on the throttle body correct per the sticker on the core support. the charcoal cannister should not have vac at idle, only off idle. the egr solenoid and MAP have vac always. looking at your coolant temp and open loop status, it isn't warmed up. does it idle...
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    88 Suburban - R12 to R134 questions

    4.36 is the "chart" converted r134a great for a rear ac burb. I just did mine a couple weeks ago and it is cooling great. previously sanden converted. agreed that the back lines can leak. the rear expansion valve can be tricky. i had to lose the brass spacer and use 2 orings to get my new one...
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    350 TBI high idle

    might try resetting the IAC by forcing it closed. if the idle is high and iac is opening to make it high, something may still be off in the wiring. is all the other sensor data tracking normal?
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    R4 to Sanden whith stock ac lines(for serpantine)

    I used this one. https://www.dirtydingo.com/shop/mobile_product_info.php?products_id=1622
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    Gov loc differential???

    I rock them until they go. I have an 04 burb with 250k on it and still works great. the 90 burb blew it out at 200k and I replaced it with a truetrac. I am not rough on them. if you are rough on them, they don't seem to last very long....
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    88 Suburban - R12 to R134 questions

    if find the leak now before you convert. likely there was dye in the last charge, so get a UV light. replace accumulator and orifice tube. flush all the lines out with AC flush before you put the new parts on. you can reuse the compressor if it is good, but it would also be a good time to switch...
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    Clicking from starter after undercarriage cleaning battery has 12.6 V

    somebody more knowledgeable may be along, but I'd say you are on the right track to let it dry out well over night.
  19. G

    Tbi crank no start

    All the GM manuals are in the reference library of this website in .pdf and are word searchable. The emissions and drivability manual covers TBI.
  20. G

    Tbi crank no start

    it's most likely the ignition control module under the distributor cap.
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    Tbi crank no start

    see attached
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    Tbi crank no start

    do the injectors spray when you crank? will it keep running on fluid if you keep adding it? if so, how does it run, rough or smooth? if you have spark and fuel injector spray during cranking, make sure your plug wires are on correctly and you may need to check the fuel pressure to make sure the...
  23. G

    Suburban Rear AC not circulating refrigerant

    just to provide closure. system all buttoned up and recharged. working just fine now, front and rear.
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    Solving gauge mysteries

    you have to spin the trip knob, not push it, to reset the trip meter. you can adjust your DRAC module for your tire size to correct the speedo. the DRAC is bolted to the dash metal under the radio. https://harristuning.com/Tbi/vssb-drac-calibration/ I think there is a clip or something to push...
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    Dakota Digital HDX Install Write Up

    for the transmission. I noticed in the photo, you didn't reinstall the stock indicator. I was wondering if you were going to use it or maybe something works with the gauges to show PRNOD21?

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