hey guys, will do my best to explain in detail my problem/symptoms
popped the motor in my 00 xj sport with 4.0, would still start after it threw a rod thru oil pan and
it's started since the swap but very inconsistently and it needed to be jumped since the battery is on its way out. im going to try jumping with thicker cables.
i used an 01 xj with matching 4.0 (both coil pack) and it went in without splicing anything. its started but i haven't been able to get it going consistently. it'll just crank and crank.
no codes, had thrown a cps code but reset it and started with same CPS, still switched it after to be on safe side, never thru a code. i believe the 1st one was just dirty
changed CPS with spare (notching trick is a life saver)
changed fuel tank completely so also pump, filter, regulator, and that pia piece that leaks back fuel pressure- it's started with either tank at least 1x
swapped around relays for fuel pump and can audibly hear it
cleaned grounds and made sure i wasn't missing any wires off harness.
i haven't checked actual fuel pressure but i'm getting a decent squirt off the shraeder and when i do get it to start it'll stay running. will also have to check spark but not sure the best way.
i don't need the 01 harness or computer, do I? everything clicked right together with no modification or headache, and it's started multiple times since the swap. i have them but can't see why i would need either
what should i try next? i have a whole parts jeep still but i think it's something dumb im forgetting or not checking?
i'm not a pro mechanic, just a shade tree trying to get their jeep going again and am running out of ideas. any guidance would be rad!
popped the motor in my 00 xj sport with 4.0, would still start after it threw a rod thru oil pan and
it's started since the swap but very inconsistently and it needed to be jumped since the battery is on its way out. im going to try jumping with thicker cables.
i used an 01 xj with matching 4.0 (both coil pack) and it went in without splicing anything. its started but i haven't been able to get it going consistently. it'll just crank and crank.
no codes, had thrown a cps code but reset it and started with same CPS, still switched it after to be on safe side, never thru a code. i believe the 1st one was just dirty
changed CPS with spare (notching trick is a life saver)
changed fuel tank completely so also pump, filter, regulator, and that pia piece that leaks back fuel pressure- it's started with either tank at least 1x
swapped around relays for fuel pump and can audibly hear it
cleaned grounds and made sure i wasn't missing any wires off harness.
i haven't checked actual fuel pressure but i'm getting a decent squirt off the shraeder and when i do get it to start it'll stay running. will also have to check spark but not sure the best way.
i don't need the 01 harness or computer, do I? everything clicked right together with no modification or headache, and it's started multiple times since the swap. i have them but can't see why i would need either
what should i try next? i have a whole parts jeep still but i think it's something dumb im forgetting or not checking?
i'm not a pro mechanic, just a shade tree trying to get their jeep going again and am running out of ideas. any guidance would be rad!