Ifinally finished! BUT slow crank, no start
#91
Seasoned Member
Joined: Oct 2010
Posts: 272
Likes: 0
From: East Lake, NC
Year: 1987
Model: Cherokee
Engine: 4.0
Can't quite make out all the noises. I hear some kind of slapping or knocking noise, but is there also a grinding noise? I think I almost heard it, but it could be something else.
#92
Thread Starter
Senior Member
Joined: Jun 2009
Posts: 600
Likes: 1
From: Shorewood, Il
Year: 1998
Model: Cherokee
Engine: inline 6 4.0L
no grinding sound, just the ticking and rough idle. and I did replace the lifters as well
oh and the ticking gets faster when RPMs go up and slows when they go down.
oh and the ticking gets faster when RPMs go up and slows when they go down.
Last edited by jeepxj412; 10-24-2010 at 01:54 PM.
#93
Thread Starter
Senior Member
Joined: Jun 2009
Posts: 600
Likes: 1
From: Shorewood, Il
Year: 1998
Model: Cherokee
Engine: inline 6 4.0L
ok well after warming it up the ticking goes away but it is still a very rough idle. anyone know what would cause a rough idle? and by rough I mean rough
#94
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
from all the times you tryed starting it with the firing order wrong you might of fouled a plug did you drive it yet mine idles like that but runs perfect he motors not shaking like its missing maybe a injector aint working
#96
Thread Starter
Senior Member
Joined: Jun 2009
Posts: 600
Likes: 1
From: Shorewood, Il
Year: 1998
Model: Cherokee
Engine: inline 6 4.0L
I did drive it and it drives like s***. you say injectors might be the problem, thats what I was thinking too. I just wanted someone to confirm it for me. lol looks like I have a reason to upgrade them to the stratus injectors. I hope thats the cause *cross fingers*. And a possibel exhaust leak? well Ill double check the manifold bolts again but idk. thanks!
#99
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
you need a test light or a good pair of insulated pliers like electricans klines you can take the wire at the dist cap and one by one pull them off with pliers while xj is running the wire that has no effect on how the motor runs is were your prob is or if you have two that dont swap them
#100
Seasoned Member
Joined: Oct 2010
Posts: 272
Likes: 0
From: East Lake, NC
Year: 1987
Model: Cherokee
Engine: 4.0
BTW, didn't make any progress on my Jeep today. It still doesn't start and like I had said, it pauses like the OP's did, but I've double triple checked the timing and the wires are on there right. It may be because the battery is kinda weak. Unlike the OP's however, sometimes my cylinders fire, but it does not stay running. It is acting JUST LIKE my first Jeep when the CPS went bad, minus the starter pausing. My next step will be the CPS.
#102
Seasoned Member
Joined: Oct 2010
Posts: 272
Likes: 0
From: East Lake, NC
Year: 1987
Model: Cherokee
Engine: 4.0
I haven't done much really. The thing ran last year. I swapped out the steering column for a tilt one, replaced the water pump and the non-existant thermostat, replaced the starter with a remanufactured one (and I don't think it will last long with the way it sounds =/) The starter I replaced was also a reman.And I replaced the altenator and belt.
Other than that, the previous owner had work done to the fuel injectors, but I believe they were just replaced with OEM injectors. I want to do the injector swap too.
When the CPS on my old Jeep went bad, I took it to a mechanic, and he replaced the CPS and rewired it to the ECM too. This Jeep may have never had the CPS replaced, but the wiring is definitely stock and that could be causing me trouble as well.
Then there's a few mysteries, like a relay under the hood that's not supposed to be there, as well as I don't think the electric fan was coming on because it had an overheating problem and the fan never even budged.
So, there's all kinds of kinks I gotta get settled out.
Other than that, the previous owner had work done to the fuel injectors, but I believe they were just replaced with OEM injectors. I want to do the injector swap too.
When the CPS on my old Jeep went bad, I took it to a mechanic, and he replaced the CPS and rewired it to the ECM too. This Jeep may have never had the CPS replaced, but the wiring is definitely stock and that could be causing me trouble as well.
Then there's a few mysteries, like a relay under the hood that's not supposed to be there, as well as I don't think the electric fan was coming on because it had an overheating problem and the fan never even budged.
So, there's all kinds of kinks I gotta get settled out.