Question about 2001 GMC Jimmy

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Antifreeze and steam pouring inside of truck

It's a 93 GMC Jimmy. While driving, there was a pop sound and then the cab filled up with antifreeze steam. The floorboard is covered in antifreeze that came out of the floor heater vents.
I am assuming it is the radiator heater hose. Where is that located on the radiator and is it possible to cut and plug the hose and still drive the truck. I understand there would be no more heat, but it's just a work truck so that doesn't bother me.

Thank you

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  • noexcuses72 Jan 09, 2009

    Awesome. Thank you very much!


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Your heater core has probably sprung a leak. the replacement of a heater core can be very expensive as the entire dash usually needs to be removed to access the heater bypass it you need to locate the heater hoses they will pass through the firewall on the passenger side in the engine compartment they will be aprox 2" diameter they run from the engine to the firewall (on some models one will run to the radiator).......just remove these from the firewall and loop them
hope this helps.............thanks for choosing FIX YA!

Posted on Jan 09, 2009

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Find the 2 hoses that go into firewall, for heater core, remove them & join together with a piece of copper pipe or similar & top up your coolant, you should be o.k.

Posted on Jan 09, 2009

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