2nd Generation S-series (1995-2005) Tech Discuss 2nd generation S-series (1995-2005) general tech topics here.

'02 Blazer heater fan only works on 2 and 3

Thread Tools
 
Search this Thread
 
  #1  
Old 01-09-2012, 04:55 PM
diceman1000's Avatar
Beginning Member
Thread Starter
Join Date: Sep 2007
Location:
Posts: 23
diceman1000 is an unknown quantity at this point
Default '02 Blazer heater fan only works on 2 and 3

but not 1 and 4??? any ideas guys???
 
  #2  
Old 01-09-2012, 05:03 PM
warthogdriver's Avatar
BF Veteran
Join Date: Aug 2009
Location: Bay City, Michigan
Posts: 2,785
warthogdriver is a jewel in the roughwarthogdriver is a jewel in the roughwarthogdriver is a jewel in the roughwarthogdriver is a jewel in the rough
Default

sounds like blower motor resistor...it mounts just to the right of the blower motor if your standing in front of truck.
if you do a search on it you may find a how to and some info to verify before buying a part.
 
  #3  
Old 01-09-2012, 05:52 PM
diceman1000's Avatar
Beginning Member
Thread Starter
Join Date: Sep 2007
Location:
Posts: 23
diceman1000 is an unknown quantity at this point
Default

thanks for the reply sir
 
  #4  
Old 01-09-2012, 06:40 PM
pettyfog's Avatar
BF Veteran
Join Date: May 2011
Location: SW Central OH
Posts: 2,257
pettyfog has a spectacular aura aboutpettyfog has a spectacular aura about
Default

Hi doesn't go through the resistor.
Check your underhood fuses, there's a 30a for just high speed. And a relay that's actuated in "4".
Not running in "1" would be the resistor
That or the speed switch is faulty
 
  #5  
Old 01-09-2012, 07:01 PM
warthogdriver's Avatar
BF Veteran
Join Date: Aug 2009
Location: Bay City, Michigan
Posts: 2,785
warthogdriver is a jewel in the roughwarthogdriver is a jewel in the roughwarthogdriver is a jewel in the roughwarthogdriver is a jewel in the rough
Default

Thanks for the correction...i learned soemthing on this one too.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Maxboost25psi
General Chat
2
03-04-2013 12:22 PM
dconnor.cfh
2nd Generation S-series (1995-2005) Tech
4
04-07-2012 10:48 AM
STARMAN
Paint, Body, & Interior
18
03-30-2011 05:26 PM
rsterrn
2nd Generation S-series (1995-2005) Tech
7
11-15-2010 08:53 AM
rxvette
General Tech Help
5
05-06-2006 12:24 AM



Quick Reply: '02 Blazer heater fan only works on 2 and 3



All times are GMT -5. The time now is 03:44 AM.