Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

Radiator flush problems

Thread Tools
 
Search this Thread
 
Old 12-19-2010, 12:12 PM
  #1  
Newbie
Thread Starter
 
dovey436's Avatar
 
Join Date: Nov 2010
Location: Telford, England, UK
Posts: 16
Likes: 0
Received 0 Likes on 0 Posts
Year: 1997
Model: Cherokee
Engine: 2.5 TD
Default Radiator flush problems

Hi all.

This morning in -14 celcius my water temperature went into the red, I stopped let it cool and restarted with no problems. I decided to flush the system out completely and fit a new thermostat. I disconected the top and bottom hoses and flushed them out, fitted the new t-stat and filled the system and bled it using the bleed screww on the top left hand side of the rad.

Problems.

The yellow radiator water light will now not go out..I have squeezed the hoses with the bleed valve open but it still wont go out and I can not get any more water/coolant in to the system???

secondly..Can someone confirm which way round the t-stat goes please??..I fitted it with the spring into the top hose with the sensor side in to the t-stat housing. The cabin does not warm up very well at all but it never did so I hoped this proceedure would help.

Cheers all
Old 12-19-2010, 12:49 PM
  #2  
CF Veteran
 
djb383's Avatar
 
Join Date: Nov 2009
Location: The Republic of TEXAS
Posts: 8,172
Likes: 0
Received 14 Likes on 14 Posts
Year: 1998
Model: Cherokee
Engine: 4.0L HO
Default

The end u see in the pic goes in/toward the engine....pointed/other end goes toward the radiator.
Attached Thumbnails Radiator flush problems-016.jpg  
Old 12-19-2010, 12:58 PM
  #3  
Newbie
Thread Starter
 
dovey436's Avatar
 
Join Date: Nov 2010
Location: Telford, England, UK
Posts: 16
Likes: 0
Received 0 Likes on 0 Posts
Year: 1997
Model: Cherokee
Engine: 2.5 TD
Default

Thanks. It seems I have fitted it the wrong way round !! How can I get the level light to go out..I know it works, I'm sure there is air in the system.

Thanks again
Old 12-19-2010, 01:33 PM
  #4  
CF Veteran
 
djb383's Avatar
 
Join Date: Nov 2009
Location: The Republic of TEXAS
Posts: 8,172
Likes: 0
Received 14 Likes on 14 Posts
Year: 1998
Model: Cherokee
Engine: 4.0L HO
Default

Sorry, don't know anything about a coolant level light.
Old 12-19-2010, 01:40 PM
  #5  
CF Veteran
 
freegdr's Avatar
 
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 22 Likes on 22 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Default

in the over flow tank is there a sensor that is on the cap its prob stuck move it up and down a couple of time might be froze up
Old 12-19-2010, 02:34 PM
  #6  
Newbie
Thread Starter
 
dovey436's Avatar
 
Join Date: Nov 2010
Location: Telford, England, UK
Posts: 16
Likes: 0
Received 0 Likes on 0 Posts
Year: 1997
Model: Cherokee
Engine: 2.5 TD
Default

Hi.

I have now turned the t-stat around the right way and checked the cap. Light is still on "low coolant level"..what is the right way to bleed the system..I have no rad cap just a pressure bleed screww on the top left hand side of the rad...also where is the low level sensor..maybe the wire has come off.

Cheers

Mark
Old 12-19-2010, 02:41 PM
  #7  
CF Veteran
 
freegdr's Avatar
 
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 22 Likes on 22 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Default

no radiator cap ????
Old 12-19-2010, 02:45 PM
  #8  
Newbie
Thread Starter
 
dovey436's Avatar
 
Join Date: Nov 2010
Location: Telford, England, UK
Posts: 16
Likes: 0
Received 0 Likes on 0 Posts
Year: 1997
Model: Cherokee
Engine: 2.5 TD
Default

No???..it is a 1997 2.5 td. I can't see one..where would it be??..it certainly isn't the the top if there should be one
Old 12-19-2010, 03:08 PM
  #9  
CF Veteran
 
freegdr's Avatar
 
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 22 Likes on 22 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Default

i cant find a thing on it is ther a coolant bottle with a sensor in it can you post a pic
Old 12-19-2010, 03:13 PM
  #10  
Newbie
Thread Starter
 
dovey436's Avatar
 
Join Date: Nov 2010
Location: Telford, England, UK
Posts: 16
Likes: 0
Received 0 Likes on 0 Posts
Year: 1997
Model: Cherokee
Engine: 2.5 TD
Default

There is an expansion tank and at the bottom there is a sensor..or something electrical. I have disconnected that and reconnected it, cleaned the plug but the light is still on. This morning the car overheated temporarily but no signs of hg problems. Thwe sensor was fine until I flushed the system..do you think it has gone and is just a coincidence??

I can't post a pic at the moment..will try TM when it's light.
Old 12-19-2010, 03:17 PM
  #11  
CF Veteran
 
freegdr's Avatar
 
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 22 Likes on 22 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Default

most likley just unplug it and see if the light went out
Old 12-19-2010, 03:19 PM
  #12  
CF Veteran
 
freegdr's Avatar
 
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 22 Likes on 22 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Default

just noticed were you are from dont i feel like a dumb ***
Old 12-19-2010, 03:29 PM
  #13  
Newbie
Thread Starter
 
dovey436's Avatar
 
Join Date: Nov 2010
Location: Telford, England, UK
Posts: 16
Likes: 0
Received 0 Likes on 0 Posts
Year: 1997
Model: Cherokee
Engine: 2.5 TD
Default



I disconnected the lead to the bottom of the expansion tank and the light did not go out..this is getting bloody annoying. I have flushed the system, fitted a new t-stat and refilled it. The levels seem ok..although the top hose was a bit cold when I went out a minute ago temperature is normal..level seems ok...air do you think??

Thanks for your help
Old 12-19-2010, 03:36 PM
  #14  
CF Veteran
 
freegdr's Avatar
 
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 22 Likes on 22 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Default

Originally Posted by dovey436


I disconnected the lead to the bottom of the expansion tank and the light did not go out..this is getting bloody annoying. I have flushed the system, fitted a new t-stat and refilled it. The levels seem ok..although the top hose was a bit cold when I went out a minute ago temperature is normal..level seems ok...air do you think??

Thanks for your help
you bleed all the air out with that valve right let it cool down the check the level in the bottle keep it full and you should be good there not really info on the td over here to go by
Old 12-19-2010, 03:39 PM
  #15  
Newbie
Thread Starter
 
dovey436's Avatar
 
Join Date: Nov 2010
Location: Telford, England, UK
Posts: 16
Likes: 0
Received 0 Likes on 0 Posts
Year: 1997
Model: Cherokee
Engine: 2.5 TD
Default

Ok thanks. I have done all that now..I'm too cold to do anymore..it's -10 celcius and snowing hard!!..my hands are like blocks of ice and I can no longer feel my feet! :-)

I will take another look tm in the daylight..can't understand what could be wrong.

Thanks for your help

Mark


Quick Reply: Radiator flush problems



All times are GMT -5. The time now is 05:00 PM.