Starting problems - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > Starting problems

Savvy Billet LED Tail LightsLight up the holidays with LED lights from JeepHutIntroducing MONSTALINER™ UV Permanent DIY Roll On Bed Line

Reply
Unread 02-22-2013, 07:06 PM   #1
unit199
Registered User
1994 ZJ 
 
Join Date: Jul 2009
Location: virginia
Posts: 6
Starting problems

I have a 1994 Grand with 4.0 having some issues with starting. If you go out and start the Jeep for the first time in days no matter what the temp is she will whirl right over and run. Then drive it to work and if you go out every couple hours and start it PERFECT if you dont and you go out after work and try to start it she will take 8 or 9 tries then it will kick over and it acts as if it is flooded. Take is home let it sit for a day and it will whirl right over and run smooth. Garage has checked pressure to fuel rail great pressure and run mutiple test nobody can tell me what to do, So I put it to the best you guys. I know someone out there will figure it out. Thanks

unit199 is offline   Reply With Quote Quick reply to this message
Unread 02-22-2013, 07:21 PM   #2
ZeeJay1997
Registered User
1997 ZJ 
 
Join Date: Dec 2008
Location: Sweet Home, Alabama
Posts: 6,886
Welcome to the forum

Fill out your Jeep info so we will know which engine you have.
ZeeJay1997 is offline   Reply With Quote Quick reply to this message
Unread 02-22-2013, 08:41 PM   #3
SpenceAK
Registered User
1995 ZJ 
 
Join Date: Sep 2012
Location: Anchorage, Alaska
Posts: 182
Might be your crank sensor. Has it died on you while driving? And these 8 or 9 tries is it turning over?
SpenceAK is offline   Reply With Quote Quick reply to this message
Unread 02-23-2013, 05:31 AM   #4
unit199
Registered User
1994 ZJ 
 
Join Date: Jul 2009
Location: virginia
Posts: 6
Thanks for responding The jeep is a 6 cy 4.0 The 8 or 9 times turning over yea it is trying to start always starts just sometimes time consuming. Never died while running. Once ya get her started she is good to go. Gas consumption has increased some used to get around 20 mpg now down to about 18. Thanks for the help.
unit199 is offline   Reply With Quote Quick reply to this message
Unread 02-23-2013, 05:43 AM   #5
technophat
Registered User
1997 ZJ 
 
Join Date: Nov 2010
Location: Reaford, NC
Posts: 115
I also have a '94 with a similar problem. I suspect the wiring to the pcm.
__________________
1997 ZJ Laredo, 4.0, 42re trans, 242 T-case
1994 ZJ Laredo, 4.0, 42re trans, NP231 T-case
technophat is offline   Reply With Quote Quick reply to this message
Unread 02-23-2013, 04:54 PM   #6
MustangFX93
Registered User
1996 ZJ 
 
Join Date: Oct 2012
Location: Lakeville, MN
Posts: 48
Also, unit199, you have your jeep listed as a WJ. 1993-1998 Grand Cherokees are ZJ's, WJ is 1999-2004, just a heads up
MustangFX93 is offline   Reply With Quote Quick reply to this message
Unread 02-24-2013, 07:50 AM   #7
unit199
Registered User
1994 ZJ 
 
Join Date: Jul 2009
Location: virginia
Posts: 6
Thanks Mustang I changed it
unit199 is offline   Reply With Quote Quick reply to this message
Unread 02-24-2013, 07:54 AM   #8
unit199
Registered User
1994 ZJ 
 
Join Date: Jul 2009
Location: virginia
Posts: 6
Thanks Mustang I think I finally got it right
unit199 is offline   Reply With Quote Quick reply to this message
Unread 02-25-2013, 03:26 PM   #9
unit199
Registered User
1994 ZJ 
 
Join Date: Jul 2009
Location: virginia
Posts: 6
Well mechanic has checked out crank sensor not that so guess must look at the wiring now Hoping for a quick fix. Cant believe something that just happened out of the blue cant be a quick fix
unit199 is offline   Reply With Quote Quick reply to this message
Unread 02-25-2013, 10:05 PM   #10
ZeeJay1997
Registered User
1997 ZJ 
 
Join Date: Dec 2008
Location: Sweet Home, Alabama
Posts: 6,886
If it's not the crank sensor, then the next thing to do is unplug the o2 sensor and see if it helps your problem. The CEL will come on, but ignore it for now.

Unplug it and drive it, then let us know how it works out for you.
ZeeJay1997 is offline   Reply With Quote Quick reply to this message
Unread 02-26-2013, 07:24 AM   #11
ratmonkey
R.I.P.
 
ratmonkey's Avatar
1997 ZJ 
 
Join Date: Dec 2006
Location: , Pennsylvania
Posts: 19,794
I'd lean towardsa leaky injector or pcm capacitors myself.

When it's having difficulty starting, does the check engine light come on at first key on? It should do a three second self test light up.
__________________
'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

ratmonkey is offline   Reply With Quote Quick reply to this message
Unread 03-06-2013, 05:58 PM   #12
unit199
Registered User
1994 ZJ 
 
Join Date: Jul 2009
Location: virginia
Posts: 6
Thanks all you guys for the info the mechanic finally got aroung to unplugging the q2 sensor and the jeep is starting better not completely fixed but much better I think I will replace them both Thanks again
unit199 is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Thread Tools






Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.