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  1. S

    1987 Suburban Idle Issues

    Took it out of the bracket, put air to it and doesn’t seem to be plugged up either
  2. S

    1987 Suburban Idle Issues

    Well it did a motor humming for a couple minutes, pulled it twice and pushed the plunger in to reset it. Seems to be functional. Would a bad icm or spark control be a culprits? I haven’t done those yet.
  3. S

    1987 Suburban Idle Issues

    Vacuum from egr port is 0, vacuum from air injection port is ~17.
  4. S

    1987 Suburban Idle Issues

    Jumped the pins and turned the key, the iac just hummed and never clicked. Touched the side of it with my hand to make sure it was what I was hearing.
  5. S

    1987 Suburban Idle Issues

    Months after. Did the iac in September. But I will give that a shot tomorrow morning and post an update
  6. S

    1987 Suburban Idle Issues

    I took it out of the bracket, mines the tank to canister to tbi style. Shock the hell out of it, no rattling or anything. An air gun seems to push air through without an issue
  7. S

    1987 Suburban Idle Issues

    Just checked it, sorry for the long wait. But I did shake it and there wasn’t anything moving inside, and nothing came out. Any way I can “delete” it to see it maybe it’s plugged up or otherwise bad? Edit: it did absolutely reek of gas when I took the hoses off
  8. S

    1987 Suburban Idle Issues

    I’ll check that when I get to the shop. Was told that it could be the purge valve, but I couldn’t find it. All I’ve got is the lint from the tank and a line to the tbi
  9. S

    1987 Suburban Idle Issues

    I haven’t touched it at all, and it was working without issue before. I’m also not sure how that’d affect the truck the way it’s acting up. Any ways to test it?
  10. S

    1987 Suburban Idle Issues

    ‘87 R20 Suburban with 5.7and TH400. Having an issue with truck idle. Starts up fine in the morning or after work. If I start it up to roughly 1-3 hours after (inconsistent) it’ll only occasionally not start, most of the time it’ll fire right up. Then when it tries to idle down it’ll go to...
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