1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Blower is intermittent

Thread Tools
 
Search this Thread
 
Old Dec 2, 2007 | 11:29 AM
  #1  
CCC 97 SSE's Avatar
Thread Starter
Junior Member
 
Joined: May 2005
Posts: 9
Likes: 0
CCC 97 SSE is on a distinguished road
Default Blower is intermittent

I just changed my blower control module out with a new one (AC Delco) on my 97 SSE with electronic climate control and the intermittent blower problem is still there. Is there a good way to test this system. Thanks. Freezing in Michigan.
Reply
Old Dec 2, 2007 | 11:45 AM
  #2  
willwren's Avatar
Junior Member
Posts like a Ricer Type-R
 
Joined: Aug 2002
Posts: 11
Likes: 13
willwren is on a distinguished road
Default

Next time it doesn't blow, get out and smack the housing on the engine side of the firewall with your fist or some other blunt instrument. See if it kicks on.

We have another case in Chicago with a blower that won't run in the cold, but does later after it warms up. Frozen is a possibility. In addition, some blower bearings will start to fail this way. Smacking gives it a little encouragement. The tough part is determining whether it'* the cold or the bearings.

Let us know if any of this helps.
Reply
Old Dec 2, 2007 | 11:49 AM
  #3  
samueljackson's Avatar
Senior Member
Certified GM nut
 
Joined: Oct 2006
Posts: 2,028
Likes: 1
From: burb of detroit. 2 miles north of 8 mile Rd.
samueljackson is on a distinguished road
Default

if you have to hit it to "jumpstart it", that would be a sign that the brushes are worn, which is would be a sign that u need replacement soon.

oh and what part of mich u from?
Reply
Old Dec 2, 2007 | 11:52 AM
  #4  
PRD2BDF's Avatar
Senior Member
True Car Nut
 
Joined: Dec 2005
Posts: 4,064
Likes: 0
From: August 07 COTM....NEBF '06, CEBF '06 OHMM '06 ONBF '07 CEBF '07
PRD2BDF is on a distinguished road
Default

It also could be a bad grounding, I had the same issue and I had to kick it, jiggle it before it would come on.

But once I regrounded it on a better place, it worked fine..
Reply
Old Dec 2, 2007 | 01:19 PM
  #5  
bill buttermore's Avatar
Senior Member
True Car Nut
 
Joined: Mar 2004
Posts: 3,066
Likes: 10
From: Ames, Iowa
bill buttermore is on a distinguished road
Default

Sounds like the blower motor is going bad. Pretty easy to change it out. Replacement will cost about $50.

Here is the procedure lifted from this old post for a '95 SE:

http://www.bonnevilleclub.com/forum/...ic.php?t=43548

Check for bad motor by unplugging connector on motor and setting controls for high speed fan
connect test light across terminals to see if power is getting to the motor
if power is getting to motor, and motor is not working properly (e.g., requires whacking to get it to work), its almost certainly bad. so....

remove strut brace (13 mm x 4 nuts or bolts)
remove engine cover (remove oil fill tube front and unsnap rear)
unclip O2 sensor connector and fuel lines connector from rear bracket (needlenose pliers)
remove rear bracket from rear cylinder head (13 mm x 2 nuts)
remove rubber cooling tube (heat with hair dryer if cold to prevent cracking)
remove bolts attaching motor (7 mm x 5)
remove insulating cover from motor (if your car has one)
gently move fuel lines out of the way and pull motor up and out
carefully remove rubber gasket from old motor; install on new motor
remove foam gasket from electrical connector, install on new motor

reverse to install; adding dielectric grease to electical connector
enjoy hot air if winter or cold air if summer

BTW, following the factory service manual procedure to test for a bad blower motor resulted in a waste of about two hours time. Why start by backprobing the blower relay (which is pretty much inaccessible!) when you can just test for power at the motor connector?
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
stainsor
Everything Electrical & Electronic
7
Feb 16, 2014 09:06 PM
hakster
2000-2005
4
Feb 18, 2010 08:54 PM
hunter2423
1992-1999
7
May 11, 2007 07:53 PM
CCC 97 SSE
1992-1999
18
Aug 5, 2005 09:02 PM
Foghorn
Everything Electrical & Electronic
13
Feb 26, 2004 01:50 PM




All times are GMT -4. The time now is 06:20 PM.