what is causing my floor on my truck to get so hot when my heater is not on
225

Asked by Chris Oct 22, 2016 at 02:40 PM about the 2001 GMC Jimmy 4 Dr SLT SUV 4WD

Question type: Maintenance & Repair

when i drive the truck for a while it seems like the feet heater is on but it is not
and it will get very hot and i never seen this before so i dont know what it is

4 Answers
10

side answered 8 years ago

my guess, possibly heat shield is missing on catalytic converter, or a exhaust component is too close to the floor pan

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firebird338 answered 8 years ago

Or the blend door to the heater core is not closing all the way and sending heat to the floor vents.

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225

Chris answered 8 years ago

well i just replaced the thermostat on it because of the lack of heat out of the heater and the check engine light is on for the o2 sensor i still gotta do im thinking its probably the cat

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Andrew answered 8 years ago

All these trucks do this, they bypass heat when the vent selection is off. S10, sonoma, blazer, jimmy and bravada

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