1990 jeep cherokee no start
05-01-2006, 01:38 PM
#1
Guest
Posts: n/a
1990 jeep cherokee no start
Hey guys,
I've got a very frustrating problem here. Customer brought in a 1990
Jeep cherokee limited, 4whldrv, automatic. We replaced the engine with
one from a 1996. All the appropriate electronics were switched from
the old engine to the new including, distributor, cap, rotor, coil,
CPS, flywheel, intake and exhaust, all injectors (already on old
intake). The problem is we now have a no start/no spark condition.
This swamp is common at our shop, (newer 4.0L into older jeep) and
always goes off without a hitch. This is the first time I've run into
this. We've replaced the CPS, coil and ignition module check out O.K.,
Distributor checks out. We even put all the suspect parts into another
jeep and they worked fine. The computer has also been replaced but to
no avail. Any input would be appreciated. Thanks.
Jesse
I've got a very frustrating problem here. Customer brought in a 1990
Jeep cherokee limited, 4whldrv, automatic. We replaced the engine with
one from a 1996. All the appropriate electronics were switched from
the old engine to the new including, distributor, cap, rotor, coil,
CPS, flywheel, intake and exhaust, all injectors (already on old
intake). The problem is we now have a no start/no spark condition.
This swamp is common at our shop, (newer 4.0L into older jeep) and
always goes off without a hitch. This is the first time I've run into
this. We've replaced the CPS, coil and ignition module check out O.K.,
Distributor checks out. We even put all the suspect parts into another
jeep and they worked fine. The computer has also been replaced but to
no avail. Any input would be appreciated. Thanks.
Jesse
05-01-2006, 08:13 PM
#2
Guest
Posts: n/a
Re: 1990 jeep cherokee no start
That leaves wires! Check all the grounds that are on the passenger side
bolted to the block.
JoBo
"spydey" <spydey98@gmail.com> wrote in message
news:1146505102.768127.237490@y43g2000cwc.googlegr oups.com...
> Hey guys,
>
> I've got a very frustrating problem here. Customer brought in a 1990
> Jeep cherokee limited, 4whldrv, automatic. We replaced the engine with
> one from a 1996. All the appropriate electronics were switched from
> the old engine to the new including, distributor, cap, rotor, coil,
> CPS, flywheel, intake and exhaust, all injectors (already on old
> intake). The problem is we now have a no start/no spark condition.
> This swamp is common at our shop, (newer 4.0L into older jeep) and
> always goes off without a hitch. This is the first time I've run into
> this. We've replaced the CPS, coil and ignition module check out O.K.,
> Distributor checks out. We even put all the suspect parts into another
> jeep and they worked fine. The computer has also been replaced but to
> no avail. Any input would be appreciated. Thanks.
> Jesse
>
bolted to the block.
JoBo
"spydey" <spydey98@gmail.com> wrote in message
news:1146505102.768127.237490@y43g2000cwc.googlegr oups.com...
> Hey guys,
>
> I've got a very frustrating problem here. Customer brought in a 1990
> Jeep cherokee limited, 4whldrv, automatic. We replaced the engine with
> one from a 1996. All the appropriate electronics were switched from
> the old engine to the new including, distributor, cap, rotor, coil,
> CPS, flywheel, intake and exhaust, all injectors (already on old
> intake). The problem is we now have a no start/no spark condition.
> This swamp is common at our shop, (newer 4.0L into older jeep) and
> always goes off without a hitch. This is the first time I've run into
> this. We've replaced the CPS, coil and ignition module check out O.K.,
> Distributor checks out. We even put all the suspect parts into another
> jeep and they worked fine. The computer has also been replaced but to
> no avail. Any input would be appreciated. Thanks.
> Jesse
>
05-01-2006, 08:13 PM
#3
Guest
Posts: n/a
Re: 1990 jeep cherokee no start
That leaves wires! Check all the grounds that are on the passenger side
bolted to the block.
JoBo
"spydey" <spydey98@gmail.com> wrote in message
news:1146505102.768127.237490@y43g2000cwc.googlegr oups.com...
> Hey guys,
>
> I've got a very frustrating problem here. Customer brought in a 1990
> Jeep cherokee limited, 4whldrv, automatic. We replaced the engine with
> one from a 1996. All the appropriate electronics were switched from
> the old engine to the new including, distributor, cap, rotor, coil,
> CPS, flywheel, intake and exhaust, all injectors (already on old
> intake). The problem is we now have a no start/no spark condition.
> This swamp is common at our shop, (newer 4.0L into older jeep) and
> always goes off without a hitch. This is the first time I've run into
> this. We've replaced the CPS, coil and ignition module check out O.K.,
> Distributor checks out. We even put all the suspect parts into another
> jeep and they worked fine. The computer has also been replaced but to
> no avail. Any input would be appreciated. Thanks.
> Jesse
>
bolted to the block.
JoBo
"spydey" <spydey98@gmail.com> wrote in message
news:1146505102.768127.237490@y43g2000cwc.googlegr oups.com...
> Hey guys,
>
> I've got a very frustrating problem here. Customer brought in a 1990
> Jeep cherokee limited, 4whldrv, automatic. We replaced the engine with
> one from a 1996. All the appropriate electronics were switched from
> the old engine to the new including, distributor, cap, rotor, coil,
> CPS, flywheel, intake and exhaust, all injectors (already on old
> intake). The problem is we now have a no start/no spark condition.
> This swamp is common at our shop, (newer 4.0L into older jeep) and
> always goes off without a hitch. This is the first time I've run into
> this. We've replaced the CPS, coil and ignition module check out O.K.,
> Distributor checks out. We even put all the suspect parts into another
> jeep and they worked fine. The computer has also been replaced but to
> no avail. Any input would be appreciated. Thanks.
> Jesse
>
05-01-2006, 08:13 PM
#4
Guest
Posts: n/a
Re: 1990 jeep cherokee no start
That leaves wires! Check all the grounds that are on the passenger side
bolted to the block.
JoBo
"spydey" <spydey98@gmail.com> wrote in message
news:1146505102.768127.237490@y43g2000cwc.googlegr oups.com...
> Hey guys,
>
> I've got a very frustrating problem here. Customer brought in a 1990
> Jeep cherokee limited, 4whldrv, automatic. We replaced the engine with
> one from a 1996. All the appropriate electronics were switched from
> the old engine to the new including, distributor, cap, rotor, coil,
> CPS, flywheel, intake and exhaust, all injectors (already on old
> intake). The problem is we now have a no start/no spark condition.
> This swamp is common at our shop, (newer 4.0L into older jeep) and
> always goes off without a hitch. This is the first time I've run into
> this. We've replaced the CPS, coil and ignition module check out O.K.,
> Distributor checks out. We even put all the suspect parts into another
> jeep and they worked fine. The computer has also been replaced but to
> no avail. Any input would be appreciated. Thanks.
> Jesse
>
bolted to the block.
JoBo
"spydey" <spydey98@gmail.com> wrote in message
news:1146505102.768127.237490@y43g2000cwc.googlegr oups.com...
> Hey guys,
>
> I've got a very frustrating problem here. Customer brought in a 1990
> Jeep cherokee limited, 4whldrv, automatic. We replaced the engine with
> one from a 1996. All the appropriate electronics were switched from
> the old engine to the new including, distributor, cap, rotor, coil,
> CPS, flywheel, intake and exhaust, all injectors (already on old
> intake). The problem is we now have a no start/no spark condition.
> This swamp is common at our shop, (newer 4.0L into older jeep) and
> always goes off without a hitch. This is the first time I've run into
> this. We've replaced the CPS, coil and ignition module check out O.K.,
> Distributor checks out. We even put all the suspect parts into another
> jeep and they worked fine. The computer has also been replaced but to
> no avail. Any input would be appreciated. Thanks.
> Jesse
>