Yukon won't heat up! While driving
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Joined: Nov 2024
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Yukon won't heat up! While driving
I replaced the thermostat. The coolant sensor. Replaced coolant to the best of my ability with that vehicle not having a radiator cap... which is driving me nuts. I burped it. Ran the vehicle kept overflow open and topped off. The heat works just fine while driving. The car gets up to 210 and sits while parked. But when I drive at all it won't get above 185-190 and sits there. My mpg have dropped to 12 mpg. And it'* killing me. I have done everything I can think of. I feel I have air pockets in the line somewhere. Please help! 4 young kids and 2 jobs working 90 hrs a week and can't afford a shop.
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True Car Nut
Joined: Feb 2015
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From: Earth
Senior Member
True Car Nut
Joined: Feb 2015
Posts: 6,849
Likes: 1,014
From: Earth
I replaced the thermostat. The coolant sensor. Replaced coolant to the best of my ability with that vehicle not having a radiator cap... which is driving me nuts. I burped it. Ran the vehicle kept overflow open and topped off. The heat works just fine while driving. The car gets up to 210 and sits while parked. But when I drive at all it won't get above 185-190 and sits there. My mpg have dropped to 12 mpg. And it'* killing me. I have done everything I can think of. I feel I have air pockets in the line somewhere. Please help! 4 young kids and 2 jobs working 90 hrs a week and can't afford a shop.
12MPG city or highway?
How many miles on the vehicle?
How many miles have you owned it?
What region does it live in?
Is the check engine light on?
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Aug 12, 2023 11:40 PM