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.

Overheating, Fan not coming on

Old Dec 5, 2009 | 06:12 PM
  #1  
sickass's Avatar
Thread Starter
Junior Member
Posts like a Ricer Type-R
 
Joined: Jun 2009
Posts: 13
Likes: 0
sickass is on a distinguished road
Default Overheating, Fan not coming on

Problem------ "Radiator Fan not coming on"

My eyes hurt from reading threads so I'm going to ask for help, I think I need to set up a manual bypass for the radiator Fan because it DOES NOT come on and car is overheating. The Fans DO come on when I put on the AC.

I am not electrically inclined and have read some threads that seem to explain how to do this but I just don't understand the procedure, and other links to threads im getting 403.

If anyone can Please explain this to me in very simple terms of what this takes, Any help is appreciated


History of current problem. and what I have done

Car started overheating and was not blowing any hot air,

1) Cleaned the heater core with degreaser and hosed it down
2) Bought the Prestone Flush Kit and Flush Solution as suggested here/ and did it
3) Installed new Thermostat
4) Burned left hand removing lower radiator hose to drain system because I'm too impatient to let the car cool down properly
5) Filled the system, and opened petcock on top of T-stat to bleed air
6) Was still no heat, so I did what I read here in the forums to rev car to bout 3500 rpm for 10 seconds X 3-4 times, then bled through petcock again, that worked and I'm finally getting heat, I think I may have to replace the Upper Manifold Gasket I don't know for sure
7) Took Glove out to see if the actuator door was working, but dont know what im really looking for, the colored hoses seem to all be connected properly

Sorry if this is a little long
Reply
Old Dec 5, 2009 | 06:23 PM
  #2  
Danthurs's Avatar
Retired Senior Admin

Expert Gearhead
 
Joined: May 2006
Posts: 29,661
Likes: 43
From: Sheboygan Wisconsin
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Try replacing your ECT sensor, that'* Engine Coolant Temp. The fan wont come on until it'* up to the correct temp, and if the ECT isn't reading right that wont happen.
Reply
Old Dec 5, 2009 | 06:28 PM
  #3  
sickass's Avatar
Thread Starter
Junior Member
Posts like a Ricer Type-R
 
Joined: Jun 2009
Posts: 13
Likes: 0
sickass is on a distinguished road
Default

WOW, that was fast response

I'll give that a go, and report back

Thanks
Reply
Old Dec 7, 2009 | 02:21 PM
  #4  
martman's Avatar
Member
Posts like a V-Tak
 
Joined: Mar 2008
Posts: 40
Likes: 0
From: Regina, Sakatchewan Canada
martman is on a distinguished road
Default

There may also be a fan relay that lets power go to the fan motor, or a fuseable link wich will melt when to much heat is going through it. This is when the fan motors are worn out and drawing to much electricty which produces heat.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Dogluvr
1987-1991
7
Jun 22, 2015 03:48 PM
BillBoost37
General GM Chat
5
Nov 5, 2006 09:48 PM
Peterg22000
Lounge
4
Jun 2, 2006 02:05 AM
Aviator Wingman
1987-1991
5
Aug 27, 2005 11:09 AM
SUPERCHARGEDkorean
1992-1999
16
Jul 3, 2005 11:49 AM


Thread Tools
Search this Thread

All times are GMT -4. The time now is 01:12 PM.