jeep starts then dies after 1 or 2 seconds
#1
Newbie
Thread Starter
Join Date: Mar 2014
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: l6 4.0
jeep starts then dies after 1 or 2 seconds
I have a 98 jeep grand cherokee. i just bought it recently and when buying it the guy said the catalytic converter was bad. hooked it up to a code reader and its said the o2 sensor was bad. i changed the oil in it yesterday and afterwards it started messing up it will crank but almost immediately shut off. ive talked to some people about it and they named off a couple of things it could be. the o2 sensor, catalytic converter, oil sending unit, or the ecu. havent replaced anything yet want to get some more opinions first.
#2
Old fart with a wrench
Sounds to me like a security system issue. Try locking and unlocking the door with the key a couple of times. My 97 had this problem and the horns were burnt out so the only way you could tell the system was engaged was that little red flashing LED on the dash top. Mine reset with the key fob. Using the key door locks was out because the tumblers were frozen.
When the system is engaged, it will allow you to start it, but the ASD relay will shut off the fuel pump and spark within a second or two after starting.
Welcome to CF!
When the system is engaged, it will allow you to start it, but the ASD relay will shut off the fuel pump and spark within a second or two after starting.
Welcome to CF!
#3
Newbie
Thread Starter
Join Date: Mar 2014
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: l6 4.0
I'll give it a try but I think I found the problem. I got under it today and unplugged the o2 sensor tried cranking it and it stayed running for about 5 or 6 seconds and shut off
#4
Old fart with a wrench
It's possible the 02 sensor is shorted, but now the PCM isn't getting a signal and is shutting it down.
#5
Newbie
Thread Starter
Join Date: Mar 2014
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: l6 4.0
Thread
Thread Starter
Forum
Replies
Last Post
XJ ONLY
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
01-26-2019 06:30 PM
Cane
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
40
08-26-2015 12:08 AM
Gtrsrlly
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
5
08-25-2015 11:50 AM
schaferjeep
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
5
08-21-2015 08:40 PM
14lgreer
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
3
08-21-2015 01:46 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)