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2001 Chevy 1/2 ton having heating issues, will have heat

Customer Question
Customer: 2001 Chevy 1/2 ton...
Customer: 2001 Chevy 1/2 ton having heating issues, will have heat once in awhile but here lately no hot air. New thermostat last spring, new hose, flushed heater core.
JA: Thanks. Can you give me any more details about your issue?
Customer: Flushed out radiator add new antifreeze also. Blower runs but no heat at all. One of the hose going to the heater core will get hot but the other is cold. But has flow through the heater core if I disconnect the hose and run air or water through the core.
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Submitted: 1 year ago.Category: Chevy
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Answered in 3 hours by:
1/5/2016
Chevy Mechanic: Tim's Auto Repair, mechanic replied 1 year ago
Tim's Auto Repair
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Satisfied Customers: 16,082
Experience: Have owned a repair shop for 25 yrs.
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Chevy Mechanic: Tim's Auto Repair, mechanic replied 1 year ago

from the way you explain,it sounds as if coolant isnt flowing...you may have an air pocket in the system.

lets try this

lets bleed the system this way

1-remove the radiator/reservoir cap when the engine is cold

2-start the engine and let idle

3-turn the heater on max

4-keep coolant on hand and add it as needed

5-spme coolant may gush out with the air

6-keep doing this until the engine is at operating tempeture and the heater is hot

7-after the coolant settles down and the engine is warm,,install the cap

This may take as long as 20-30 minutes

let me know if that fixes your problem

If you are satisfied with my answer, Please Rate my answer by clicking the rating button so I can get credit for my work. I’m not always going to be giving you good news, so please don't let this stand in the way of you accepting my answer. .it does not cost you more money and we will still be able to communicate, ,.please understand, i can not see, hear or touch the vehicle and only know what you tell me. Bonuses and positive feedback are appreciated.. if you are not satisfied with my answer, please do not leave bad feedback ,i will gladly opt out and let another expert handle the question. .if i have sent any diagrams, please print them. .sometimes you may need to right click the image [,then save picture as]to save it to your computer so you can open it with your picture program...Please ask if you need more help.

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Tim's Auto Repair
Tim's Auto Repair
Tim's Auto Repair, mechanic
Category: Chevy
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Experience: Have owned a repair shop for 25 yrs.

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