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My heater will not switch to cold on the drivers side of my 2003 chev 2500

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I have a 2005 Chevy extended cab 1500 and the controls on my driver side door aren't working. The door is saying it ajar when it's closed. I can't roll the windows up or down. Is it the master switch?


How to fix the Chev power window door lock switch - YouTube

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Dec 26, 2015 | Cars & Trucks

1 Answer

Drivers side seat quit working and the seat heat's not working either. Passenger side works fine, fuse looks good, any suggestions?


if you already checked the fuses and found them to be good then you may now want to check the connectors under the seat. You will need a probe light to so this. The probe light will light up if you have power coming into the (+) terminal end. Watch this video to learn how to use a probe light tester.
https://www.youtube.com/watch?v=Y0HjaR0tj7Q

Dec 14, 2015 | Seat Cars & Trucks

2 Answers

I have a 2003 chev silverado, 4x4 2500 both power seats and seat heaters stopped working at the same time, Looking for reason why, all fuses seem to be good. I was told to replace the 25 amp relay on


Ok I don't know who these people are giving advice but I hope they are not gm mechanics. There is a fuse under the hood marked MBEC 1 50amp. If it blows it knocks out both power seats seat heaters and power windows passenger side front and back. I can't believe all this wiring ****!

Feb 18, 2013 | 2003 Chevrolet Silverado 2500

3 Answers

Heater blows cold


To troubleshoot this types of problem,click the link below :----http://howtobyme.blogspot.in/2012/02/heater-blows-only-from-defrost.html
--------Go through the procedure to confirm the issue.------
Engine Overheats and heater blowing cold? http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html
---------Heat blows cold on drivers side and hot on passenger side? http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html
-----------
This will help.Thanks.

Feb 15, 2012 | 2003 Buick LeSabre

1 Answer

2003 Mitsubishi Eclipse Spyder, can't figure out why the heater blows cold air on the drivers side and warm air on the passenger side? A/C works great. I have flushed the heater core and it seems to flow...


There are a couple of possibilites. 1 Is your vehicle equipped with seperate climate controls for the driver and passenger, if so your warm/cold air motor door on the drivers side is malfunctioning. This is located under the dash.2 Your climate controls on your dash are not working properly. Hope this helps.


Please take a moment and rate my answer..........Thanks

Dec 01, 2010 | 2003 Mitsubishi Eclipse Spyder

1 Answer

2004 CHev Silverado PU AC is on, hot on one side cold on other


I have the same problem with my 2003 Silverado. I am not sure how to fix the problem but I'll keep looking and let you know what I find out. If anyone has any suggestions, it would be greatly appreciated.

Apr 28, 2010 | 2004 Chevrolet Tahoe

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