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.

drain petcock

Thread Tools
 
Search this Thread
 
Old Jul 12, 2011 | 01:24 PM
  #1  
Slick761's Avatar
Thread Starter
CF Veteran
 
Joined: Jun 2011
Posts: 2,858
Likes: 1
From: Nor-Cal
Year: 1990
Model: Cherokee
Engine: The venerable 4.0
Default drain petcock

While were on this big cooling system kick for the summer.... I have the plastic passenger side petcock you have to take the grill off to get to. Seems I can spin and spin the valve but nothing comes out... any ideas?
Reply
Old Jul 12, 2011 | 02:05 PM
  #2  
wahoo's Avatar
Member
 
Joined: Sep 2010
Posts: 213
Likes: 1
From: Grove City, Ohio
Year: 2000
Model: Cherokee
Engine: 4.0
Default

Pull the bottom radiator hose off.
Reply
Old Jul 12, 2011 | 02:16 PM
  #3  
BuckB91XJ's Avatar
CF Veteran
 
Joined: Nov 2008
Posts: 6,989
Likes: 4
From: Oak Harbor, WA.
Year: 1987
Model: Cherokee
Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator
Default

Pulling the bottom radiator hose off will get your radiator to drain. However, your pepcock is jacked up or the bottom of the radiator is plugged with crud or rust. If you were spinning on the pepcock and it wouldn't drain today, it will most likely start to leak or pop out when you least expect it like when climbing a mountain pass or out in the middle of the desert. Drain the radiator by pulling the lower hose if you have to but, definitely get to the bottom of why your pepcock is not working.
Reply
Old Jul 12, 2011 | 02:55 PM
  #4  
Slick761's Avatar
Thread Starter
CF Veteran
 
Joined: Jun 2011
Posts: 2,858
Likes: 1
From: Nor-Cal
Year: 1990
Model: Cherokee
Engine: The venerable 4.0
Default

Thanx man I was thinkin the same thing. Already drained it by cutting lower hose(tryin not to make a mess) gonna be hard to flush without a petcock.
Reply
Old Jul 12, 2011 | 03:05 PM
  #5  
djb383's Avatar
CF Veteran
 
Joined: Nov 2009
Posts: 8,172
Likes: 17
From: The Republic of TEXAS
Year: 1998
Model: Cherokee
Engine: 4.0L HO
Default

Bottom rad hose is really easy if u remove the plastic air filter box.
Reply
Old Jul 12, 2011 | 06:33 PM
  #6  
Slick761's Avatar
Thread Starter
CF Veteran
 
Joined: Jun 2011
Posts: 2,858
Likes: 1
From: Nor-Cal
Year: 1990
Model: Cherokee
Engine: The venerable 4.0
Default

My whole intake/exhaust manifolds are off. It was very easy just didn't want a mess. Cut it cause if I just pulled it off it would have just flowed and my catch can wouldn't hiave caught it fast enough.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
SergeK
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
Feb 27, 2023 03:38 PM
ra.stewart
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
9
Feb 15, 2021 01:47 PM
bwilliams
KL Cherokee Tech
8
Oct 5, 2015 02:40 PM
Crazynut1997
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
15
Sep 29, 2015 08:14 PM
AggieNiebs
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
8
Sep 29, 2015 01:50 PM

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



All times are GMT -5. The time now is 02:04 AM.