Jeep not starting
08-19-2012 | 08:33 AM
#17
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 31
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
08-19-2012 | 08:38 AM
#19
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,565
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
08-19-2012 | 09:23 AM
#20
Senior Member
Joined: Jun 2012
Posts: 595
Likes: 0
From: Rome, GA
Year: 1990
Model: Cherokee
Engine: 4.0
This sounds familiar. When I first tried to start my engine after replacing the fuel injectors, it would start but die immediately. The one time I got it to stay running for a few seconds, it sounded like it had an extremely radical cam and was belching black smoke out of the exhaust. After checking everything under the hood, I found a 3-wire plug on the fire wall, just above the intake manifold (could be the O2 sensor wire, I didn't check) had come unplugged because the retainer clip was broken off. So anyway...........I plugged it back in, zip tied it to secure it and she's been running fine since then.
08-19-2012 | 01:54 PM
#21
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,565
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
This sounds familiar. When I first tried to start my engine after replacing the fuel injectors, it would start but die immediately. The one time I got it to stay running for a few seconds, it sounded like it had an extremely radical cam and was belching black smoke out of the exhaust. After checking everything under the hood, I found a 3-wire plug on the fire wall, just above the intake manifold (could be the O2 sensor wire, I didn't check) had come unplugged because the retainer clip was broken off. So anyway...........I plugged it back in, zip tied it to secure it and she's been running fine since then.
08-19-2012 | 02:04 PM
#22
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 31
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
After replacing the rear main and valve cover gasket, my 87 XJ won't start. I suspect it MAY be the starter, as I did remove it in the process of changing out the rear main. At first it would crank over and fire once then die. The next day, it wouldn't even crank. When the key is in the "ON" position, radio turns on, gauges start going up, but right when I turn it to start, everything goes dead. Any ideas?
08-20-2012 | 06:43 PM
#23
Thread Starter
Newbie
Joined: Aug 2012
Posts: 12
Likes: 0
Model: Cherokee
Ok I replaced the starter relay and no luck. I have high hopes on it being the CPS after reading many threads, but even after looking at pictures and threads, I embarrassingly cannot find the CPS. I tried looking for all three wired connections but no luck -____-. Can any of you guys spot it for me?
08-21-2012 | 02:06 AM
#26
Thread Starter
Newbie
Joined: Aug 2012
Posts: 12
Likes: 0
Model: Cherokee
Ok I checked the CPS via these instructions https://www.cherokeeforum.com/f51/testing-cps-5563/ and it was fine, but then I noticed that the MAP sensor was completely disconnected.....my friend was the one who did the valve cover removal and I'm pretty sure he removed it to get to a bolt and forgot to connect it back. Everything works fine now, but it started smoking a bit from the engine bay. I did forget to turn on the fans, hopefully it was because of that. Thanks for all the help guys!
08-21-2012 | 07:49 PM
#30
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,565
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Thread
Thread Starter
Forum
Replies
Last Post
zumer715
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
18
07-08-2022 06:17 PM
Ashs1714
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
09-04-2015 11:14 PM
Cane
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
40
08-26-2015 01:08 AM
Gtrsrlly
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
5
08-25-2015 12:50 PM
14lgreer
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
3
08-21-2015 02:46 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)