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  1. #1

    Default Radiator drain plug

    Having owned a few cars, is the 92-99 Burb have one of the most aggravating spots for a radiator drain plug? My 91 was a piece of cake if I remember correctly?

    I can see the former owner must have bent the metal back a little, but even then I can't get my hand in at the right angle to turn the plug.

    I'm thinking about taking a grinder and cutting an access hole. Or is there some other easier way to get to the pitcock valve.

  2. #2

    Default

    Quote Originally Posted by Kraziken View Post
    Having owned a few cars, is the 92-99 Burb have one of the most aggravating spots for a radiator drain plug? My 91 was a piece of cake if I remember correctly?

    I can see the former owner must have bent the metal back a little, but even then I can't get my hand in at the right angle to turn the plug.

    I'm thinking about taking a grinder and cutting an access hole. Or is there some other easier way to get to the pitcock valve.
    I once got so aggravated I used a shop vac to get the old coolant out. From what I understand is it's not a petcock, it's a screw valve with a square hole. I think a quarter inch drive is supposed to fit in it.

  3. #3

    Default

    I gave up trying to get to those things. The 95 TBI wasn't too bad, just had to pull the charcoal canister. But forget it on 96 and up.

    I have a new, better way. I use a piece of narrow tubing/hose, slide it in the radiator down past the trans cooler. Pull a little suction, drain it into a bucket. It's neater, quicker, easier.
    When you hear hoofbeats, look for horses not zebras.

  4. #4
    Sr. Apprentice
    Join Date
    Nov 2009
    Location
    Grandview, WA
    Posts
    68

    Default

    I had to remove to fan shroud & loosen the bottom shroud to get to the choke valve. Had to use a pair of pliers to get to turn, but be careful not to damage it. They are prone to leaking.

  5. #5

    Default

    Should've read this thread before replacing my radiator. The drain valve on my 99 suburban is a joke to get to, and in fact the original valve was busted. Like the idea of suctioning it out. I ended up cutting the lower radiator hose since I was replacing anyways, but it was messy.
    Current Rides: |99 Chevy Suburban- the family truckster |93 Lincoln Town Car- 250K miles & still churning -now a fan of the Panther platform
    Former GM cars: |78 Suburban 454 |71 Buick Electra 225 (deuce & a quarter) |75 Monte Carlo- 400SB- heaviest doors GM every made |70 Impala coupe- my 1st car

  6. #6

    Default

    I decided to replace my lower radiator hose, and drained it that way too. Aggravating.

  7. #7

    Default

    The shop vac worked like a champ. I just got a long rubber hose that reached the bottom of the radiator, taped it to the "crevice attachment" and let her rip.
    No muss no fuss.

  8. #8

    Default

    Getting to and using the drain plug is ridiculous (driver's side/inside of radiator). I went ahead and removed the lower radiator hose. It make a mess, but would have with the plug anyway. For both I had to remove fan shrouds.

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