no spark
#1
Newbie
Thread Starter
Join Date: Aug 2014
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
no spark
I bought a 1990 jeep Cherokee xj it ran great after a while we found out it had a cracked block which was a motor out of a 1996 Cherokee so I got a 1993 Cherokee motor after installing I now cannot get it to start it turns over great has plenty of fuel pressure in the rail I reach of what the problem could be and I got the crankshaft position sensor so I replaced that the I replaced the coil still no luck also my friend did hook up the battery backward which I believe is causing a problem and on the fuse panel as soon as I turn on the key it melts the acc wire and the radio fuse I've tried everything I'm completely stumped any body have any ideas? If you think you have an answer please pm me
Last edited by Tj Vaughn; 08-31-2014 at 06:53 PM.
#2
CF Veteran
Join Date: Apr 2012
Location: Wisconsin
Posts: 5,302
Likes: 0
Received 19 Likes
on
16 Posts
Model: Cherokee
You'll have to find and fix the accessory short first, then check the fusible links that fan out from the start relay. An accessory short may have opened one up.
What year electronics are on the motor? Did you swap in the '93 block only, or more?
What year electronics are on the motor? Did you swap in the '93 block only, or more?
#3
::CF Moderator::
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,876
Received 1,526 Likes
on
1,238 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Did you use the flexplate from the "original" engine that ran, or the one from the donor engine?
PM you? Why?
Wedonthavetimeforthatandweneedtokeepeverythinginth ethreadtokeeptrackofthingssowedontwasteeveryonesti meandenergy.
PM you? Why?
Wedonthavetimeforthatandweneedtokeepeverythinginth ethreadtokeeptrackofthingssowedontwasteeveryonesti meandenergy.
Last edited by cruiser54; 09-01-2014 at 02:33 PM.
#6
::CF Moderator::
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,876
Received 1,526 Likes
on
1,238 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Trending Topics
#10
Newbie
Thread Starter
Join Date: Aug 2014
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
#11
::CF Moderator::
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,876
Received 1,526 Likes
on
1,238 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
The battery being hooked up backwards has burned wires.
We can't help you from here.
Tell your friend "thanks a pant load".
We can't help you from here.
Tell your friend "thanks a pant load".
Thread
Thread Starter
Forum
Replies
Last Post
cpnwrench
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
13
02-15-2024 08:09 AM
91cherokeeSC
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
41
10-29-2015 01:49 PM
Jeremy Millner
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
10
10-02-2015 02:21 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)