1999 Jeep Grand Cherokee intermittent starting
#1
1999 Jeep Grand Cherokee intermittent starting
Starter ok, battery, ok installed new starter relay and ECM. All the dash lights and other electronics turn on with the ignition. After the is driven and sits for a while, the car will not start. The following day the car will start. Totally baffled....anyone have any ideas?
#2
No, I don't lick fish.
Joined: Mar 2011
Posts: 11,167
Likes: 21
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
Welcome! Just for future, there is a better section for your specific model
https://www.cherokeeforum.com/f1/ <--- this is the grand cherokee section.
What motor is in your Jeep? Is it the 4.0 inline 6 or the 4.7 v8?
https://www.cherokeeforum.com/f1/ <--- this is the grand cherokee section.
What motor is in your Jeep? Is it the 4.0 inline 6 or the 4.7 v8?
#5
No, I don't lick fish.
Joined: Mar 2011
Posts: 11,167
Likes: 21
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
#7
No, I don't lick fish.
Joined: Mar 2011
Posts: 11,167
Likes: 21
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
That sounds like a neutral safety switch malfunction. On our models, I'd recommend taking it out and cleaning it, but your model has a different type of NSS....
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#9
#12
Old fart with a wrench
Joined: Nov 2010
Posts: 14,398
Likes: 729
From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
No, I'm talking about the NSS. You should only have power to the starter solenoid with the key in the start position. Try putting a jumper wire from the large terminal on the starter to the small one. The starter should crank the engine when you do that.
#13
Senior Member
Joined: Nov 2014
Posts: 603
Likes: 0
From: Hacienda Heights
Year: 1990
Model: Cherokee
Engine: 4.0
Weak or no crank when hot is almost always a bad starter. Not with this particular vehicle, but in general. The starter can test ok cold and fail when hot. Sometimes they totally fail soon after the first signs of issues, sometimes they work intermittently for weeks.
#15
Seasoned Member
Joined: Dec 2010
Posts: 350
Likes: 0
From: Georgia, USA
Year: 1994
Model: Grand Cherokee
Engine: v8
There is a moral in there somewhere.