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    Smoking '91

    Pull the plugs, pressurize the cooling system for a couple of hours - have someone crank it over & look for coolant coming out of the plug holes.
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    More air conditioning

    When you said you resealed the ducts are you talking about the ducting to the vents? That is a cheap & easy check/fix but these vehicles are notorious for the rubber seals on the air distribution doors for falling apart. Usually you will notice airflow from locations other than what you have...
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    Leak under passenger side

    Does it leak after using the A/C or when it rains?
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    Signs of a bad or going bad fuel sending unit or pump

    Put the pressure gauge on - should pop up to about 60psi with key on, engine off. Watch it and see if it bleeds down. Some is OK but below 45psi/50psi and you may have a leaking pressure regualator inside the intake. Note- I replaced my MPFI with the SFI set up from GM - after a couple of weeks...
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    Steering wander

    The proper way to inspect the ball joints IS to jack (support) the lower control arm untill the wheel is off the ground, with a pry bar under the tire lift up and check the play in the lower ball joint. Grab the tire at the top and push/pull in and out to inspect the upper ball joint.
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    Any one using these LED headlights?

    Those ebaylights will prove out to be short lived junk. I bought cheap LEDs for all the interior/dome lamps and had issues with them flickering or burn out with in a month or 2. There is a reason they are cheap. I did replace my low beam bulbs with Race Sport 9006TLED bulbswhich are PnP. The...
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    Steering wander

    I had the same issues with my '96 2dr Tahoe, replaced all the front end components and the pump (Delco) & gearbox (NAPA) - hated the new gearbox so ponied up the cash for one from RedHead - that made a difference, but still not the greatest. One thing that helped mine early on was to replace...
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    411 PCM w/Tow Haul shifter

    Cokeman95 - What truck is that dash mounted tow/haul switch out of? I just swaped to a 0411 PCM and whantto use the tow/haul feature.
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    Let's talk spider injection

    Just an FYI - I replaced my CPI unit with a Delco MFI. Noticed a slight improvement in throttle response so I was happy. About a month after the replacement I started having "extended cranking" issues like a fuel pressure regulator or fuel pump bleeding down which I could see by leaving my...
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    How do you PM a member?

    Another new question, but how do you PM a member? I must be missing something obvious...
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