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  1. Y

    Oil consumption?

    My 1989 big block has variable oil consumption too - sometimes a little, sometimes none, sometimes more than I expected. I just check the fluids every time I fill up and tell people it identifies as British....
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    1988 Suburban CRUISE CONTROL HELP!

    This is somewhat helpful - it confirms my suspicion that the larger-diameter vacuum hose going over the main junction box on the cowl is part of the vacuum-break system that cut the cruise control when you pressed the brake. Also at least have an idea as to what the engine compartment side...
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    United By Trucks podcast- garage accident topic

    I lost an uncle decades ago to a car coming off a jack while he was still under it. Did not live in the same state so was not a personal witness (and thankful for that) but still keep that hard learned lesson in mind. If its not on its wheels it better be on solid stands before I'm going under it.
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    1988 Suburban CRUISE CONTROL HELP!

    I have all the components in the cabin (column switch, under dash control box and brake pedal switches), but everything except the vacuum resiviour ball on the engine bay side was removed by previous owners. I'd love to see some pictures of the completed system because that would help me know...
  5. Y

    Same horns all years?

    Too bad you can't get tunable ones - I'd love to get the notes for a D-minor chord and sound like the phantom of the opera coming down the street....
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    Worthwhile to convert from TBI to Quadrajet?

    I need to do this with mine (clean the IAC that is, already did enough screwing around trying to understand how it works!). How hard is it to remove and how likely is it to break?
  7. Y

    Show your daily driver

    I have the 2003 version of that truck with the smaller 3.0 V6, its not going to set any records at the strip for certain but its a perfectly comfortable road tripper that keeps up on the highway. Gets about 16-17 MPG in mixxed town/highway use and I've gotten 19-20mpg on straight highway trips.
  8. Y

    Weird problem with hazard lights

    So if I understand the description correctly, when you turn on the hazards, nothing happens. But if you press the brake while the hazard switch is ON, then all the lights (front turn signal/dash turn signal/rear brake-turn) come on and stay on for as long as you hold the pedal? With the hazard...
  9. Y

    Clue me in on R&R Trurn Signal Switch on an 86 GMC, please!

    OK - inquiring minds want to know on this one: You used the phrase "de-pin the connector" very casually - as if it were something that could be accomplished by mere humans. How the -censored for my protection- do you actually do that without destroying the connector and wire ends? The one time...
  10. Y

    Fuel system help

    Your understanding of the relationship between the oil pressure switch and relay is very close to right, but there is one key difference. The oil pressure switch isn't a hand-off from the relay, it is a backup for the relay. They relay should always be powering the fuel pump when the engine is...
  11. Y

    Courtesy light, cigarette sockets

    It seems like not just our our trucks, but almost any older vehicle has a great deal of electrical "reimagination" around the radio wiring. I found equally disasterous wiring in my 1970's British car where the radio would have been as well. A lot of people just want to get it working by any...
  12. Y

    How do I bypass the factory radio completely so I can just listen through Bluetooth?

    I have an older DUAL unit (predating Bluetooth) in the Suburban and have the same issue using the AUX in compared to the radio or built-in CD player. Even with a phone or iPod type device turned up to maximum the volume from the speakers is much less on the AUX than the radio. I tried adding a...
  13. Y

    Courtesy light, cigarette sockets

    Sadly you are not wrong. I've gotten most of the wiring part ironed out at this point but yes there some serious headaches and many exclaimations of "what the ---- is this" in the process....
  14. Y

    Courtesy light, cigarette sockets

    Sounds like the same people who installed mine: Transgressions uncovered so far: 1 - Main power and memory retention power coming through a chunk of telephone handset cord with the ends cut off and just twisted to the chopped off ends of the factory wiring harness. 2 - All factory connectors...
  15. Y

    TH400 vacuum modulator question

    I replaced mine a couple years ago - definately had fluid coming out around it. Its easy to do, but have a catch pan handy because you will have a gusher of fluid coming out.
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    Driving full time 4wd with front drive shaft removed

    My friend Dave had a shortbed 1/2 ton GMC that ran great but previous owners were using just as a play around truck, had big lift (needed a stool to get in and out) but the front shaft was missing. We suspect they broke it or never got it set up right for the lift, there was a lot wrong on that...
  17. Y

    Need engine help!! At my wits end

    I'll be honest I don't know much about your specific problem, but I'd love to know where you got that camera and how much it costs because that is some of the clearest imaging from inside a cylinder I have seen and I probably should look into getting one myself....
  18. Y

    Comp Cams Break in

    I have to preface this with the fact I have never built an engine from zero. I have never heard anyone mention or even reference specific break in springs and rockers before. I've always known about break-in oil and procedure for how to run the engine when new, but this is all new (and...
  19. Y

    Worthwhile to convert from TBI to Quadrajet?

    I have contemplated this multiple times while staring at an unsolvable error code blinking at me. I also have a higher-than-desired idle (last time I measured it around 950RPM) but live with it because theres no logical answer for it. Right now the TBI is not throwing constant errors at me...
  20. Y

    defrost not working

    On my 1989, I believe the top slider which selects the outlet is vacuum actuated, whereas the lower one that controls cold to hot is rod or cable actuated. So I'd start by looking to ensure you didn't break or disconnect the vacuum line that goes thru the firewall to the climate controls when...
  21. Y

    Vents smell like piss

    Before cutting any holes, see if anyone you know has an inspection camera/borescope type camera that you can snake in there and get a visual before tearing it all apart. You may not have a nest - a critter may have just decided that your windshield looked a little dirty and gave it a yellow...
  22. Y

    high beams not working

    I have the column mounted dimmer also - the switch is in the base of the column and is actuated by a metal rod coming down from the turn signal/wiper/dimmer/cruise/does-everything-but-drive-the-truck lever. The switch itself is pretty easy to get to since its at the base of the column (and if...
  23. Y

    My new HF welder

    TIG welding is hard - I havn't been able to get the hang of it yet. It also doesn't work if there is any wind or air movement. But what the previous post says about rusty metal is 100% correct - if its corroded that thin it will just burn away. It took me days to get all the pin-holes in the...
  24. Y

    OEM trailer wiring Suburban R20

    Thats actually shockingly better than what I found on my 1989. If memory is to be trusted, my 4 way trailer connection did break out from the tail lights through a factory connector, but from there it all went downhill. In the approx. 2 feet of wiring between the split off and the 4 way at...
  25. Y

    Help! My truck isn’t idles low and then stalls out.

    Is you SES light funtional and if so, is it coming on to indicate an error condition? If its not showing an error thats not particularly surprising, I havn't found the error code system on these old OBD1 to be all that helpful (even if you do get an error code it is vague). Do you notice any...

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