Recent content by gmbellew

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    Headers and O2 sensor

    If you're running good as is, and with the limitations of TBI, I'd just leave the exhaust manifolds on there. Headers wont add much from what I've read. Look at a new exhaust coming off the manifolds if you need a new exhaust system.
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    What have you done to your square lately??

    TPS position only affects TCC lockup on a 4L60 with TBI. Shifts are very much controlled by the TV cable. I'd ask the shop if they made any adjustments to it when they tightened the intake manifold.
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    AC Questions

    remove the vertical piece on the ductwork that you can see under the dash. then you can watch the door operations and look for issues before diving deeper.
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    RETRO-Mod: Jeep intermediate steering shaft

    I'll do what's in post 425 and use the c3500 shaft if I ever do any steering box replacement or upgrade.
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    Engine light comes on while driving

    if you have code 42 randomly popping, I'd be looking hard at the distributor cap and plug wires for signs of carbon tracking indicating spark leaving and zapping the ICM wires. I had a random code 42 for a while until I was going to swap the ignition control module with a spare to see if it was...
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    Engine light comes on while driving

    Like the other post said, the codes are stored for 30 starts or so. You can pull the code now. there are only a couple of systems that self test that set a light that would go away on the next start. Those are EGR operation and Knock Sensor operation. EGR self tests under steady highway...
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    Headlights

    I think the headlights are on a circuit breaker instead of a fuse. so if something is shorted it gets hot and trips, cools off, and then comes back on, and then trips again when it gets hot. I'd be looking at wiring issues, particularly a short to ground in the high beams if the low beams work...
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    TBI diagnosis reminder

    I've used a timing light to check spark and plug wires before. found a bad wire one time that would only intermittently not fire. swapped it to the adjacent cylinder plug and it kept intermittently missing, and the adjacent wire fired every time on the cylinder that had the intermittent miss...
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    TBI diagnosis reminder

    having weird issues with your TBI? before getting out the parts cannon, follow this advice from the GM Drivability manual before you start in with more complicated diagnostics--> BEFORE STARTING This check should include: • ECM/PCM grounds for being clean, tight, and in their proper...
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    No power at all, zero lights, guage lights, or anything else. Any help wld be great.

    I'd double check to make sure you connected the wires to the starter properly
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    87 1500 Not Getting Power to TBI Injectors

    this might help.
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    87 1500 Not Getting Power to TBI Injectors

    Looks like A6 comes from ECM I fuse to ECM. It should only be 12v with key ON. If the fuse pops on key ON. You have a short to ground. I had an issue one time where ECM I was shorted to ground on a wire running to the TCC solenoid. Sometimes odd things are powered in odd places....
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    headlight/seat belt buzzer

    I think there are OEM chimera modules available from some GM cars of the same vintage that are a direct plug and play. m
  14. G

    headlight/seat belt buzzer

    I appreciate my buzzer also. I've heard you can swap to a module that has a less obnoxious tone...but I don't mind the old school buzz reminder for the rare occasions i need a reminder.
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    What gears

    with the OD trans, 4.56 minimum with 35s. i"d probably lean more toward 4.88. check out-> http://www.grimmjeeper.com/gears.html
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