1996 GMC Sierra "heater core" Questions

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Question about GMC Sierra

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heater core replacement Inspect/Replace If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core. When a heater core leaks, a new heater ...

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Question about GMC Sierra

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...heater core or heater core bypass valve may be stuck closed. bypass valve is usually on the firewall on one of the heater core hoses. if valve seems to be operating properly. you will need to let the ...

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...Heater Core Return Line is flowing only 2000 GMC SIERRA 6000 VORTEC W/AC . Installed new 186 degree thermostat. At idle, heater core return line is flowing only one cup of coolant in 22 seconds, ...

Question about GMC Sierra

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...top radiator hose is hot and heater core hose goin in is hot bottom radiator hose and return heater core hose cold checked coolet level good all fuses good Have you tried backflushing the heater

...heater core This depends on how hard it is to get to your particular vehicle style core. Some vehicles require to rip out the entire dash, others may be exposed. For an exposed heater core, I've done ...

...heater core hose connector broke. How do you replace it? The nipple that the heater core hose (at the firewall) slips on, broke off flush. The plastic connector just spins around and won't pull ...

...heater core to get "air locked" Check your coolant level. There could also be a problem with your water pump not able to pump correctly due to a worn or corroded impeller. This will usually cause the ...

Question about GMC Sierra

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...heater core I have a 3500 5.7 motor is there any thing I need to know if I am doing it my self is it ok to by pass the core how long can I drive the truck if I did that it is ok to by pass the heater ...

...heater core. I traced them very thoroughly, and there is no valve! I heard that 95, 96 and 1/2 of 97 have an electronic control valve, but wouldnt it still have to be in line with the heater core? or ...

...heater core. I use a garden hose. My same truck as yours, lost heat in the cab. I used the garden hose trick, and flushed the problem away. It's as easy as removing both heater hoses from the heater ...

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