jeep grand cherokee 98 4x4 heater problem

Reply

  #1  
Old 01-20-07, 12:10 PM
Member
Thread Starter
Join Date: Jan 2007
Posts: 1
jeep grand cherokee 98 4x4 heater problem

i turned the heater on it cam on after long time and the second day i turned the heater on it did not turned on it just air!! how i get it back to worke help pleas it is freezing!!
 
Sponsored Links
  #2  
Old 01-20-07, 02:10 PM
Forum Topic Moderator
Join Date: Oct 2002
Location: Hamilton County, Ohio
Posts: 4,287
You don't say if the blower is working but I'm guessing it is. Check your coolant level first. If it is normal, your thermostat is stuck open.
 
  #3  
Old 01-20-07, 03:27 PM
Member
Join Date: Jan 2007
Posts: 81
jeep grand cherokee 98 4x4 heater problem

Check to see if the valve is opening when you turn on the heater. Is the valve manual or operated by vacuum? If the valve does not open no heat. Another way to check to see if coolant is flowing feel the hoses to the heater core to see if they are warm/hot. If not coolant is not flowing to the heater core. If they are warm/hot you have a door in the heater box under the dash the is not opening. That could be as simple as a vacuum leak if it is operated by vacuum.

If the problem is not what Goldstar said it could be the impeller on the water pump. Have you notice if the jeep coolant is get hotter than normal. If so it could be by a small chance the water pump impeller is loose on the shaft. This happen to one of my cars years ago.
 
  #4  
Old 01-20-07, 03:33 PM
HotxxxxxxxOKC's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Jul 2006
Location: USA
Posts: 8,044
Also,
Remove your "blower motor" fuse from the panel for 10 mins. Then reinstall fuse and start Jeep for 5 minutes. This will cailbrate the blend door in your car. Usually this fuse is a green 30amp type.
 
  #5  
Old 04-22-07, 06:01 PM
Member
Join Date: Apr 2007
Posts: 3
Jeep GC Heater SOLUTION

Hello,
I have developed a solution for the jeep grand cherokee heating problem. The usual problem involves the breaking of the blend doors. My solution is strong, easy to install, and it definitely beats paying the dealer $1800!! For more info please email me: jeepheaterfix at yahoo
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes
'