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.

no go

Thread Tools
 
Search this Thread
 
Old Mar 5, 2011 | 03:56 PM
  #1  
cgjr33's Avatar
Thread Starter
Newbie
 
Joined: Aug 2010
Posts: 3
Likes: 0
Model: Cherokee
Default no go

93 jeep wont start. new battery, starter good, fuses all good, what else could it be??????
Reply
Old Mar 5, 2011 | 04:04 PM
  #2  
dukie564's Avatar
☠ CF Sheriff ☠
Premium Member
 
Joined: Nov 2009
Posts: 15,197
Likes: 18
From: Aberdeen, MD
Year: 1995
Model: Cherokee
Engine: 4.0L HO I-6, 703 Injectors, Brown Dog Super Engine Mounts
Default

https://www.cherokeeforum.com/f2/non...writeup-71401/
Reply
Old Mar 5, 2011 | 04:51 PM
  #3  
tjwalker's Avatar
CF Veteran
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2010
Posts: 5,841
Likes: 117
From: In the middle of Minnesota!
Year: 1999
Model: Cherokee
Engine: 4.0
Default

Always be descriptive.

No-start can mean that:

A: The engine doesn't even turn over

OR

B: The engine turns over fine, but doesn't fire/start
Reply
Old Mar 5, 2011 | 06:58 PM
  #4  
cgjr33's Avatar
Thread Starter
Newbie
 
Joined: Aug 2010
Posts: 3
Likes: 0
Model: Cherokee
Default no go

thanks for the info. just completed the NSS clean up and ajustment. Have lights for reverse turns over in p and n but wont fire up ?? like its not getting spark?
Reply
Old Mar 5, 2011 | 07:00 PM
  #5  
mike's Avatar
Seasoned Member
 
Joined: Aug 2008
Posts: 440
Likes: 0
From: Bowling Green, KY
Year: 1989
Model: Cherokee
Engine: 4.0
Default

change the CPS or unplug and clean the plug then plug it back in
Reply
Old Mar 5, 2011 | 07:36 PM
  #6  
NCMetalMechanic's Avatar
Member
 
Joined: Nov 2010
Posts: 182
Likes: 0
From: Charlotte
Year: 2000
Model: Cherokee
Engine: 4.slow
Default

no starts can be a pain in the ***. since the motor is turning over, and you have a new battery, your issue is either fuel related or spark related. pick up a cheap inline spark tester at harbor freight(couple of bucks), and see if you have spark in all cylinders. then if you do have spark, check to see if you have fuel pressure. if so, then i would start looking at sensors.... post back and let us know whats going on....
Reply
Old Mar 6, 2011 | 06:05 AM
  #7  
tjwalker's Avatar
CF Veteran
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2010
Posts: 5,841
Likes: 117
From: In the middle of Minnesota!
Year: 1999
Model: Cherokee
Engine: 4.0
Default

Always check for spark with a no-start. You are looking for a strong, blue, snapping spark. Yellow/white/orange indicates a weak spark, which may not be strong enough to start the engine.

If the crank sensor is bad, you will not have spark and you will not have fuel going TO the fuel injectors. Ignition coil is another possibility for no-spark.

If spark checks out, try a small spray of starting fluid into the intake. If the engine starts and runs momentarily, you know spark is okay and you have confirmed a fuel DELIVERY problem.
Reply
Old Mar 6, 2011 | 01:28 PM
  #8  
cgjr33's Avatar
Thread Starter
Newbie
 
Joined: Aug 2010
Posts: 3
Likes: 0
Model: Cherokee
Default Very good info for "no go"

Again thanks for all info. Changed out the CPS and she fired right up. Bit of a chore to get the right angle to the dangle on the bolts, but a magnetic 7/16 that I had in my toolbox did help.
Future project's rear seal, oil filter ring replacements Im sure Ill be back for more info
Reply
Old Mar 7, 2011 | 08:31 AM
  #9  
dukie564's Avatar
☠ CF Sheriff ☠
Premium Member
 
Joined: Nov 2009
Posts: 15,197
Likes: 18
From: Aberdeen, MD
Year: 1995
Model: Cherokee
Engine: 4.0L HO I-6, 703 Injectors, Brown Dog Super Engine Mounts
Default

glad you got it fixed.
Reply
Old Mar 7, 2011 | 08:52 AM
  #10  
tommyis3's Avatar
Junior Member
 
Joined: Oct 2009
Posts: 72
Likes: 0
Model: Cherokee
Default

Glad you fixed your problem, its great when people post their fixes, number of threads I have read with people asking for help, then they never post if they got the fix done or not.
Reply

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



All times are GMT -5. The time now is 10:50 PM.