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  1. #1

    Default radiator plug leaking

    So this was my dilemma that popped out of nowhere on sunday about 1 hour before I was about to get a re-tune from Blackbear...
    Pulled up to my garage and popped my hood because my dad just wanted to look at my engine bay, I dont know why.... we looked for a few seconds, turned my truck off and walked back into the garage.

    LITERALLY 10 seconds later I realized I forget my wallet in my truck, turned around and instantaneously i see a jet stream of coolant shooting up at my hood!

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    I lost a good bit of coolant in this little ordeal that scared the hell outta me, but found out it was just this little rubber cap on my radiator. (It was obviously very old and dried out, it was very cracked, thats why it blew a hole) I went to a local advance auto parts to pick up a "vacuum plug" and a new hose clamp. Ive never seen this in my life and I talked to a guy at advance to see if this plug was even right to begin with, but he had no answer. So i put back on it what came off and it seems to hold up just fine.

    I have a question though... Does anyone know if this is a correct plug to begin with? and perhaps why this plastic outlet is blocked off in the first place?
    2000 Chevrolet Silverado

    Powertrain:
    4.3L V6, 4L60E, 2WD, Single Cab
    Performance:
    Airaid CAI
    Poweraid TB Spacer
    Flowmaster 10-series exhaust (dumped)
    BLACKBEAR TUNED!!!
    Edge CS insight monitor
    4.10 gears
    Limited-slip differential
    LS-1 Dual Electric fans
    Corvette tranny servo swap

    Audio:
    Head Unit: Alpine
    Speakers: Alpine SPR-60C 6.5" component set, 4X6 Infinity Kappas
    Subs: 2-12" Kicker CVT's
    Amps: Alpine-M1000 (subs), Alpine MRX-F65 (Speakers)


    Tires/Wheels:
    305/70R16 NITTO Terra Grapplers
    16" PROCOMP 7089's
    Suspension:
    2" leveling kit
    3" Fabtech Spindle Lift Kit
    Front/Rear-Bilstein 5100 shocks

    Lighting:
    FRONT
    35W HID Low Beams
    RECON LED smoked roof cab lights
    REAR
    HELLA LED taillights and 3rd brakelight
    HELLA FF-75 Aux. Reverse Lamps
    RIGID dually D2, flush mount, wide beam
    Accessories:
    Hawk HPS Brake pads
    Russell braided steel brake lines
    Powerstop-red powdercoated brake calipers
    Powerslot Cryo brake rotors
    EGR in-channel window visors

  2. #2

    Default

    On my Truck, I just looked at the Radiator, on the Passenger-Side, there's a Hose, where you have the picture of the Plug, the Hose Runs from there, to under the Throttle Body.

    Here's a Diagram the Hose I've mentioned, its number #26





    Side-Note, the Diagram is for a 5.3 Liter, it may be Different for a 4.3Liter????
    Last edited by 99'HEARTBEAT; 03-05-2013 at 05:44 PM.

    MIKE


    99"SILVERADO
    5.3 l 3.73 l G80
    BLACK BEAR CUSTOM TUNE
    SNUGTOP l COLORMATCH l KATZKIN










  3. #3

    Default

    hmmm... interesting...
    a blocked off vent hose cant be right, can it?

    2000 Chevrolet Silverado

    Powertrain:
    4.3L V6, 4L60E, 2WD, Single Cab
    Performance:
    Airaid CAI
    Poweraid TB Spacer
    Flowmaster 10-series exhaust (dumped)
    BLACKBEAR TUNED!!!
    Edge CS insight monitor
    4.10 gears
    Limited-slip differential
    LS-1 Dual Electric fans
    Corvette tranny servo swap

    Audio:
    Head Unit: Alpine
    Speakers: Alpine SPR-60C 6.5" component set, 4X6 Infinity Kappas
    Subs: 2-12" Kicker CVT's
    Amps: Alpine-M1000 (subs), Alpine MRX-F65 (Speakers)


    Tires/Wheels:
    305/70R16 NITTO Terra Grapplers
    16" PROCOMP 7089's
    Suspension:
    2" leveling kit
    3" Fabtech Spindle Lift Kit
    Front/Rear-Bilstein 5100 shocks

    Lighting:
    FRONT
    35W HID Low Beams
    RECON LED smoked roof cab lights
    REAR
    HELLA LED taillights and 3rd brakelight
    HELLA FF-75 Aux. Reverse Lamps
    RIGID dually D2, flush mount, wide beam
    Accessories:
    Hawk HPS Brake pads
    Russell braided steel brake lines
    Powerstop-red powdercoated brake calipers
    Powerslot Cryo brake rotors
    EGR in-channel window visors

  4. #4

    Default

    As far as.....can't be right, I would think not, the next question......is Why is it Blocked off??....

    MIKE


    99"SILVERADO
    5.3 l 3.73 l G80
    BLACK BEAR CUSTOM TUNE
    SNUGTOP l COLORMATCH l KATZKIN










  5. #5
    Legend
    TRPLXL2's Avatar
    Join Date
    Jan 2009
    Location
    Norwalk, Ohio
    Posts
    3,359
    Blog Entries
    8

    Default

    That hose brings warm coolant through the throttle body, to keep the blade from icing up in extremely cold conditions. I also bypassed mine using this method, as my truck is a summer driver only. The odds of the throttle body icing up are slim, take a look at ls1tech forum. They have a how to on this, supposedly the bypass will gain you like 3 hp lol!!!
    2004 Chevy Colorado
    LS1 5.7 swap/TBSS rear axle swap

  6. #6

    Default

    Quote Originally Posted by TRPLXL2 View Post
    supposedly the bypass will gain you like 3 hp lol!!!
    sorry i had to laugh out loud!

    But i will check on it for sure...

    - - - Updated - - -

    Quote Originally Posted by [FONT=arial black
    I would think not, the next question......is Why is it Blocked off??....[/FONT]
    do not know....
    2000 Chevrolet Silverado

    Powertrain:
    4.3L V6, 4L60E, 2WD, Single Cab
    Performance:
    Airaid CAI
    Poweraid TB Spacer
    Flowmaster 10-series exhaust (dumped)
    BLACKBEAR TUNED!!!
    Edge CS insight monitor
    4.10 gears
    Limited-slip differential
    LS-1 Dual Electric fans
    Corvette tranny servo swap

    Audio:
    Head Unit: Alpine
    Speakers: Alpine SPR-60C 6.5" component set, 4X6 Infinity Kappas
    Subs: 2-12" Kicker CVT's
    Amps: Alpine-M1000 (subs), Alpine MRX-F65 (Speakers)


    Tires/Wheels:
    305/70R16 NITTO Terra Grapplers
    16" PROCOMP 7089's
    Suspension:
    2" leveling kit
    3" Fabtech Spindle Lift Kit
    Front/Rear-Bilstein 5100 shocks

    Lighting:
    FRONT
    35W HID Low Beams
    RECON LED smoked roof cab lights
    REAR
    HELLA LED taillights and 3rd brakelight
    HELLA FF-75 Aux. Reverse Lamps
    RIGID dually D2, flush mount, wide beam
    Accessories:
    Hawk HPS Brake pads
    Russell braided steel brake lines
    Powerstop-red powdercoated brake calipers
    Powerslot Cryo brake rotors
    EGR in-channel window visors

  7. #7
    Legend
    TRPLXL2's Avatar
    Join Date
    Jan 2009
    Location
    Norwalk, Ohio
    Posts
    3,359
    Blog Entries
    8

    Default

    The theory behind the bypass is your making the air cooler and denser going into the engine, running coolant through the throttle body heats up the air going into the engine.
    2004 Chevy Colorado
    LS1 5.7 swap/TBSS rear axle swap

  8. #8

    Default

    Quote Originally Posted by TRPLXL2 View Post
    That hose brings warm coolant through the throttle body, to keep the blade from icing up in extremely cold conditions. I also bypassed mine using this method, as my truck is a summer driver only. The odds of the throttle body icing up are slim, take a look at ls1tech forum. They have a how to on this, supposedly the bypass will gain you like 3 hp lol!!!
    So, since this is already done to my truck, should I list it as a "performance mod" to beef up my rep? lol
    2000 Chevrolet Silverado

    Powertrain:
    4.3L V6, 4L60E, 2WD, Single Cab
    Performance:
    Airaid CAI
    Poweraid TB Spacer
    Flowmaster 10-series exhaust (dumped)
    BLACKBEAR TUNED!!!
    Edge CS insight monitor
    4.10 gears
    Limited-slip differential
    LS-1 Dual Electric fans
    Corvette tranny servo swap

    Audio:
    Head Unit: Alpine
    Speakers: Alpine SPR-60C 6.5" component set, 4X6 Infinity Kappas
    Subs: 2-12" Kicker CVT's
    Amps: Alpine-M1000 (subs), Alpine MRX-F65 (Speakers)


    Tires/Wheels:
    305/70R16 NITTO Terra Grapplers
    16" PROCOMP 7089's
    Suspension:
    2" leveling kit
    3" Fabtech Spindle Lift Kit
    Front/Rear-Bilstein 5100 shocks

    Lighting:
    FRONT
    35W HID Low Beams
    RECON LED smoked roof cab lights
    REAR
    HELLA LED taillights and 3rd brakelight
    HELLA FF-75 Aux. Reverse Lamps
    RIGID dually D2, flush mount, wide beam
    Accessories:
    Hawk HPS Brake pads
    Russell braided steel brake lines
    Powerstop-red powdercoated brake calipers
    Powerslot Cryo brake rotors
    EGR in-channel window visors

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