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.

90 renix vac leak/hiss from dash /defrost

Thread Tools
 
Search this Thread
 
Old 06-03-2012, 02:20 AM
  #1  
CF Veteran
Thread Starter
 
DFlintstone's Avatar
 
Join Date: Aug 2011
Location: Nor-Cal Coast
Posts: 10,489
Likes: 0
Received 17 Likes on 17 Posts
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
Default 90 renix vac leak/hiss from dash /defrost

90 renix vac leak/hiss from dash /defrost

I actually run with a gauge. I can't see it when I have Coffey in the holder. Anyway it's there, maybe an inch less on defrost. I killed 12 mice, didn't help. , anybody "been there". I did look pretty well, looks kike Defiantly on defrost, and maybe some other positions.

I guess I already know I need to get into it. Any tips? I don't think the glove box comes out easy like a Tempo, and I had the lower panel off to get at the TCU, and of course the radio hole gives acess to ..things...

Anyway. no doubt, defrost sucks, any tips?

Last edited by DFlintstone; 06-03-2012 at 02:33 AM. Reason: I might need to really get into there?
Old 06-04-2012, 02:16 AM
  #2  
CF Veteran
 
Radi's Avatar
 
Join Date: Apr 2012
Location: Wisconsin
Posts: 5,302
Likes: 0
Received 19 Likes on 16 Posts
Model: Cherokee
Default

Carry a small blowtorch? Move to the South? The 'ole mouth full of butane/BIC lighter trick? Triple Firehouse Chili for breakfast?
More than one way to defrost that there windshield, I tell 'ya.

Did you check the back of the HVAC switches themselves? If it's leaking there it's much easier to get at to fix. Can't tell you much about getting to the defrost door motor, never had to fiddle with mine. Hopefully it's an easy reach.
Old 06-04-2012, 06:49 AM
  #3  
::CF Moderator::
 
cruiser54's Avatar
 
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,863
Received 1,524 Likes on 1,236 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Default

Remove the radio to access the HVAC controls.

The vacuum plug on the back of the controls can get wonky. The mice can also do lots of weird things.
Old 06-09-2012, 02:19 AM
  #4  
CF Veteran
Thread Starter
 
DFlintstone's Avatar
 
Join Date: Aug 2011
Location: Nor-Cal Coast
Posts: 10,489
Likes: 0
Received 17 Likes on 17 Posts
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
Default

Originally Posted by Radi
Carry a small blowtorch? Move to the South? The 'ole mouth full of butane/BIC lighter trick? Triple Firehouse Chili for breakfast?
.... HA! I knew I could come here for "sage" advise!
(Ya' missed one, I have a 12V Hair dryer for the Tempo!, (works!))(core bypassed)(I don't drive the Tempo, and can't find my hair).

Yea.."easy reach" it's not. Sounds like we all three are in agreement, I need to start digging at the radio....It DOES work btw. Just with that MAP using my vacuum reading, which is lower on defrost...

So board mice are raising the sea level....

PS, Ah!..I get the confusion. "Defrost Sucks", I just meant I hear the hiss on defrost.

Radi, if you happen to be the guy everybody goes to when they can't figure it out, where does that leave you to go?

Last edited by DFlintstone; 06-09-2012 at 02:22 AM.
Old 06-09-2012, 01:40 PM
  #5  
CF Veteran
 
Radi's Avatar
 
Join Date: Apr 2012
Location: Wisconsin
Posts: 5,302
Likes: 0
Received 19 Likes on 16 Posts
Model: Cherokee
Default

Originally Posted by DFlintstone
Radi, if you happen to be the guy everybody goes to when they can't figure it out, where does that leave you to go?
There's a reason I have no hair left.

My son is a GM tech, way smarter than me, lol. He bails me out when I get in over my head. The question is...where does he go?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
SergeK
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
02-27-2023 03:38 PM
eepjeep
Modified XJ Cherokee Tech
22
12-03-2015 09:46 AM
Stabsthedrama
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
15
10-03-2015 05:46 PM
Stabsthedrama
Cherokee Chat
8
10-01-2015 06:34 PM
Cherokee_of_Tennessee
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
4
09-30-2015 12:10 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: 90 renix vac leak/hiss from dash /defrost



All times are GMT -5. The time now is 11:25 PM.