Question about 2005 Chevrolet Silverado 1500HD

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Fan for heater will not come on at 5 it will foe 1-2-3-4 but not 5 can you let me know what the problem is

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There is a resistor pack in the heater duct and the one side is open on it.
Check and or replace resistor pack.

Posted on Nov 15, 2010

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1 Answer

Change heater core water pump one pipe get hot


try some comma's?
my wild guess, is you are trying to fix a dead cab heater, right?
and if so, can be caused by 5 things wrong. total.
1 engine coolant not hot (180F or more)
2; fan dead.(cab heater fan)
3:or core , coolant path blocked. (seems you)
4; core exterior core blocked with leaves or pin needles. (sucked in)
5: optional core valve , stuck closed. (cable bad, etc)\



one pipe hot , means ,? core pipe 1 is hot, and other is dead cold?
this flow blockage , bingo !

if pipe 1 is 180F and other is 120f this is normal the heater is heating air in the cab and is dropping due to this heat exchange. (normal)
so why not do the 2 year full flush service now. (skipped i bet)
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remove the 2 hoses on engine side, never core side (easy damage)
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How replace the resistor for the heater /ac blower motor


According to my data base, you have to remove the right side instrument panel lower insulator to access it. I'm not quite sure what that is, but these things are always located in the blower motor box so that the fan blows on them because they get really hot. Hope this helps. If you get the new one first, you will know what you are looking for.

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FUSE BOX DETAILS


left to right...
1. empty
2. e flashers
3.horn, brake lights
4.clock, trunk light, inside light, radio
5. rad. cooling fan relay (AC only)
6. right side running lights
7. left side running lights
8. right high beam and indicator
9. left high beam and indicator
10. right low beam
11. left low beam
12. reverse,turn signal and inst panel
13. main and transfer fuel pumps, auxiliary air reg., ox sensor heater
14. license plate and glove box light
15. wipers
16. rear defogger
17. heater blower (no AC)
18. cig lighter
19. rad cooling fan (no AC)
20. Heater blower (AC)
21. rad cooling fan (AC only)
22. empty
23. Ox sensor, idle stabilizer,seat belt warning relay, (Digifant only, control unit, idle boost control, idle boost valve)
24. inst panel lights, heater control lights
25. reading lamps
26. empty
27. empty
28. empty

Hope this helps...;-)

Apr 17, 2009 | 1992 Volkswagen Fox

1 Answer

Heater fan not working


if you still cant find the fuse box try this link
http://pdftown.com/PDF-BMW-5-Series-1989-1995-Service-Manual.html
it will tell you all you need to know, you may have to register with the site but it is free.

hope it helps

Jan 01, 2009 | 2002 BMW 5 Series

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My heater & A/C control (fan) switch has 1 to 5 settings, but only operates 3,4 and 5. Is it the switch or possibly the fan motor?


hello from what i am reading on your complaint if i understand you correctly you it sounds like a may be a fan relay a possible burnt resistor within it

Sep 10, 2008 | 2000 Pontiac Grand Am GT

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