Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: v8hotrod on September 20, 2010, 09:42:49 PM

Title: Grand Cherokee heater probs
Post by: v8hotrod on September 20, 2010, 09:42:49 PM

Just fitted new rad to my 2001 grand 4.0 but now can't get heat through  :017: and being the cold a*r*ed git that I am find it a tad annoying..............Help pleeeeeeeeeeease before they drop off !!!!!!!!!!!!!

Title: Re: Grand Cherokee heater probs
Post by: tim_aka_tim on September 20, 2010, 09:50:07 PM

Sounds like the blend doors. Nothing to do with the rad, but a very common failure on WJs.
The doors that blend the hot and cold air get stuck on cold. It's a very expensive, dashboard
out fix if you do it the proper way, but there is another way to hack them. Look on the bay for
"grand cherokee blend door".

Title: Re: Grand Cherokee heater probs
Post by: v8hotrod on September 20, 2010, 09:51:57 PM

Cheers Tim, do they go just like that as it worked ok before rad probs ??

Title: Re: Grand Cherokee heater probs
Post by: tim_aka_tim on September 20, 2010, 09:56:44 PM

Would seem quite a co-incidence wouldn't it. However, it's the most likely problem. Many have
fixed it on here, so wait a while and you'll get some more thoughts.

Title: Re: Grand Cherokee heater probs
Post by: Mike Pavelin on September 20, 2010, 10:06:08 PM

You can now get a repair kit from Mansfield 4x4, about a hundred quid with instructiond I think.

Title: Re: Grand Cherokee heater probs
Post by: Bubba on September 22, 2010, 10:19:47 PM

could it not simply be an air lock to the heater ?

Title: Re: Grand Cherokee heater probs
Post by: Lornaben on September 22, 2010, 10:23:06 PM

 :imwitstupid:

First thing that crossed my mind considerin the rad replacement thats been done ...  :017: