new motor - WON'T START

Post by **csult** » Tue Oct 30, 2007 8:49 pm

i just finished putting a new/rebuilt 4.0 in my 88 jeep cherokee and it
will not start! its getting gas and spark and all the plug-ins are plugged up. has anybody ever done a motor swap and know what i could check? the wiring on the jeep is kinda booty fabbed cause the guy i got it from wasnt a mechanic of any type!!! i have changed the wiring harness and the computer from another jeep to try to do away with the mess he had! the thing has a button you have to push to start it, why i dont know! im going to look into that tommrow and maybe change things from one jeep to another to get his crap fixed. so i need all the info yall got!

Post by **Stinson** » Tue Oct 30, 2007 9:07 pm

fuel/spark/compression

You have them all, but do you have spark at the right time?

Post by **BlueDodgeRam** » Tue Oct 30, 2007 9:09 pm

paging caleb.........caleb trowbridge......

Post by **csult** » Tue Oct 30, 2007 9:12 pm

yeah the timeing is right. paging caleb.........caleb trowbridge have noideal what your talking aboult

Post by **shmoken875** » Tue Oct 30, 2007 10:03 pm

csult wrote:yeah the timeing is right. paging caleb.........caleb trowbridge have noideal what your talking aboult

caleb (Ctrow) has had, what, 3 motors? in his 88xj

Post by **Ctrow** » Wed Oct 31, 2007 5:50 pm

shmoken875 wrote:
csult wrote:yeah the timeing is right. paging caleb.........caleb trowbridge have noideal what your talking aboult
caleb (Ctrow) has had, what, 3 motors? in his 88xj

I've had 2 motors, and I've already checked it out. It needs to be put all together and everything pluged in before you can trouble shoot it.

Or......

you can buy another junker that runs and sell that pretty new motor to me

Post by **csult** » Wed Oct 31, 2007 7:22 pm

ok what will you give

Post by **jonesy** » Wed Oct 31, 2007 11:50 pm

fuel (gas and air mixture), ignition source (spark), and compression (compression)

you need these three things to run a motor ... you are lacking one of them.

or you fawked up the wiring and the ecu wont let it start for one reason or another ...

check fuel pressure, timing, compression numbers ... check it all.

dotn care if you have already done it ... check it again man ... soemthing is missing.

Post by **csult** » Sun Nov 11, 2007 6:02 pm

still will not start!!!!!!!!!! im JUNKING it all the parts are for sale moter that has a all new rebild!! head has been ported polished and a valve job. all new gaskets ect........ good tranny good t-case dana 35 with blown spider gears. dana 30 thats in good shape the whole thing is going to go!!! i bought me a 98 xj to wheel and need money to fund that. so the parts will go CHEAP!!!

Post by **Jwlman** » Sun Nov 11, 2007 8:33 pm

csult wrote:still will not start!!!!!!!!!! im JUNKING it all the parts are for sale moter that has a all new rebild!! head has been ported polished and a valve job. all new gaskets ect........ good tranny good t-case dana 35 with blown spider gears. dana 30 thats in good shape the whole thing is going to go!!! i bought me a 98 xj to wheel and need money to fund that. so the parts will go CHEAP!!!

Hmmm, what are you looking to get for the devil engine?

Post by **csult** » Sun Nov 11, 2007 11:07 pm

i have a guy that is intersted in it all ready ill let you know if that dont work out.

Post by **csult** » Mon Nov 12, 2007 10:06 pm

Hmmm, what are you looking to get for the devil engine?

make me a offer! i really thank there is nouthing wrong with it im sure its in the choped up wireing thats on my rig!!!