Question about 2001 Chevrolet Silverado

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2001 chevrolet silverado no heat one heater hose is cold

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Most likely cause that I know of would be a plugged heater core, disconnect both lines and see if you can freely flow water thru it

Posted on Jan 15, 2013

  • Terry Wilder Jan 17, 2013

    Thanks, flushed heater core and is now working fine. TW

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: no heat in vehicle . both heater hoses are hot

the temp blend door is broken, they break all the time.

Posted on Mar 16, 2009

dmsr63
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SOURCE: 2001 Chevrolet Silverado How to remove rear axle

Remove...
wheels, drums or rotors, the cover for the differential (You will need a drip pan)
remove the "pin" (usually a 5/15" or 8mm head) that secures the spider gear pin. Remove the long spider gear pin, as it should slide out without a lot of force.
Push both axles inward, and remove the left and right "c" clips that hold the axles in.
Note... if you have a limited slip, it may be a little different of a set up due to clutches in the differential.

Posted on Nov 05, 2009

  • 2841 Answers

SOURCE: 1989 chevy silverado heater blowes cold air. both

Feel the hoses going into the heater on the firewall. If one is hot and the other is cool, then the heater control valve is not working for whatever reason. Check the flow valve.

Posted on Nov 07, 2009

  • 369 Answers

SOURCE: 2006 chev silverado heater blowing cold air,

heater core might be clogged

Posted on Jan 11, 2010

Testimonial: "This worked fine I was thinking I would have to tear the heater apart, the temputure here has been 0 to about 20 THANKS for the help"

  • 1374 Answers

SOURCE: 2000 Chevrolet Silverado Heater Hose Connector

Go to the dealer. He'll get it for you. Otherwise you cpuld make something that would work remember its only 20psi's there. i would need a photo of the area affected and I could probablytell you how to fabricate something that will work.

Posted on Mar 14, 2010

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1 Answer

1996 yukon - heat blowing cold


If the engine top radiator hose is actually at HOT to the touch ( it will burn you ) and the coolant in radiator is full touch both heater hoses. One side should be HOT and other side warm. If that is all ok check fuses for heater and HVAC, both use same doors in hear control. I hope this helps you.Lee

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try flushing your coolant system. if you have air compressor.remove hoses to heater core and try ro blow it out. also with the car running see if the hoses are the same temp. if not try blowing out the heater core. also start the car and see if the water pump is pushing water out of the hose goimg to the heater core. also a bad radiator cap could keep it from heating up.let the car run and see if the top hose gets hard to where you can not squeeze it. if you can than replace the radiator cap. hope this helps leave comment.

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Feb 11, 2011 | 1999 Chevrolet Silverado 1500

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2004 Chevy Silverado heater blows cold air. What would cause this problem?


the heat is independant from your ac. look for leaky radiator hoses or heater hoses,radiator cap,coolant

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Jan 03, 2011 | 2001 Chevrolet Silverado 1500

1 Answer

What if the heater hose going in is hot and the heater hose coming out is cold.the heater will blow cold air


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Flush heater core in reverse direction - cold side in hot side out..

Just a theory..

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With the engine cold look under the hood for a small vacuum hose that feeds the duct controls.Its usually on the pass. side near the A/C box mounted on the fire wall. The vac hose will be coming off the intake manifold.They get broke off or disconnected with the heat.

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1989 chevy silverado heater blowes cold air. both heater hose are hot. bargraph adjust from hot to cold.what next.


Feel the hoses going into the heater on the firewall. If one is hot and the other is cool, then the heater control valve is not working for whatever reason. Check the flow valve.

Nov 07, 2009 | 1999 Chevrolet Silverado 1500

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