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Thread: leaking coolant....BAD
12-08-2007, 11:18 AM #1
Im losing a ton of antifreeze. I put in a full container the other day and the next morning there was a big puddle under the truck. I've lost like 3/4 of the coolant. its coming out up front below the radiator. Any ideas what it might be? Hose? Radiator?Dan
1999 GMC Sierra 2500 350 vortec
1967 Jeep M725 ambulance 230 tornado
1990 Cherokee Limited- 3 inch lift on 33's
...and every one of em has issues
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12-08-2007, 01:32 PM #2
you will need to look good and close but it can be raditor or hose or the water pump and then the water is running down the fan and on the ground. you might get it pressure tested and see if that shows the leak? ...mikeMichael Collins
1993 4X4 Suburban
many other toys as well
12-08-2007, 11:06 PM #3
i pressure tested it and there's a hole in the radiator. better that than the intake gasket.
12-09-2007, 08:49 PM #4
I put some stop leak in to temporarily seal the radiator while I wait for my new one. However, I've been reading up on it and people are saying that it clogs everything up and kills the heater core. Does anyone know if there is any truth to this?
12-10-2007, 09:01 AM #5
It can screw-up a the smaller holes in the cooling system. When, or just before you put the new radiator in flush the entire system or you could have problems.
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94 GMC Burban, 5.7L (350), 4X4, Auto
86 GMC Burban, 350, 2 WD, Auto
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12-10-2007, 05:07 PM #6
- Join Date
- Sep 2007
- Marshall, MO
yes what they say is true i have to replace my heater core and radiater for the same reason1998 Dodge Neon:neutral: Yeah so, I like It
1988 GMC Suburban:gasp: TPI Heads, Hedderman Long tube headers, and the valve train out of a drag truck, It has just been rebuilt, and She LIVES!!!! DYNO anybody?!
12-12-2007, 08:02 AM #7
i beleave that it depends on what type of stop leak u use. i used alumiseal and never had any problems with it clogging heater core or any other hole other then wheat it needed to be sealedHI MY NAME IS. HI MY NAME IS. HI MY NAME IS.
1993 GMC K2500 Suburban 5.7L Jegs 8.0mm wires, Jegs Red Hot Coil, Jegs Cap & Rotor, Accel U-Grove Plugs, Cold Air Intake, Holly Headers, Manderal Bend Y-Pipe, Super 40 Muffler, M/T Classic II sitting on BFG A/T (MINE)
[COLOR="Magenta"]1994 Chevy S10 Blazer 4X4 4.3L CPI. Delta Flow 50 Muffler.(Wifes) DIED.. Cab mounts rotted out.. Parting out need anything let me know!!!!
12-12-2007, 06:28 PM #8
I forget what I used. But to paint a picture, Imagine a fishing lure liquified mixed with some boogers into a silver and black paste and there ya go, stopleak! I haven't been driving it, but if the snow I'm supposed to get comes tomorrow I'm going to have to. I'll just watch the temp gauge closely.
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