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91 xj crank no start new engine

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Old Dec 8, 2015 | 12:51 PM
  #1  
XxWarzxX's Avatar
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Exclamation 91 xj crank no start new engine

91 xj manual 4.0
rebuilt motor put in
I have fuel, spark, 38-40 lbs of fuel pressure, I re-TDC twice just to make sure, I even stuck a test light on my injectors to see the pulse, I am at my wits end, (all relays are good, and the only cel codes I am getting is a 12 41 and 55, I know what these are and I am pulling my hair out at this crank not start (forgive any and all spelling and grammar no no's): confused1::confus ed1::c onfused1::dunn o::brick wall:: brickwall::brickw all:
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Old Dec 8, 2015 | 10:28 PM
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quneur's Avatar
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CPS?
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Old Dec 8, 2015 | 10:51 PM
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freegdr's Avatar
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From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
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Got spark ?
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Old Dec 8, 2015 | 11:16 PM
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From: PA
Year: 1994
Model: Cherokee
Engine: 4.0 HO
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CPS plug,easy to miss.
As suggested check for spark.
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Old Dec 9, 2015 | 05:57 AM
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cruiser54's Avatar
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
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Setting Your 4.0 at #1 TDC


With #1 spark plug removed, turn the engine over clockwise using the 3/4" front crankshaft bolt. You will see the degree marks on your front cover. Mark the 0 with chalk or white-out. You will see the timing mark on the balancer. Mark it with chalk or white-out. While turning the engine over, put your finger/thumb over #1 spark plug hole. As the mark on the balancer approaches the marks on the front cover, if you are coming up on #1 TDC, pressure in the cylinder will push on your finger. If there's no pressure, you're at #6 TDC and need to crank the engine over until you see the marks coming together and you get pressure. Set the mark on the balancer to the 0 mark on the front cover.


http://www.angelfire.com/my/fan/dist_index.html
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Old Dec 12, 2015 | 10:36 PM
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94XJ4point04x4's Avatar
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From: Brooksville Florida
Year: 94
Model: Cherokee
Engine: 4.0L I6
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no cps he would have no spark.?
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Old Dec 13, 2015 | 07:24 AM
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Originally Posted by 94XJ4point04x4
no cps he would have no spark.?
Si.
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Old Dec 13, 2015 | 06:05 PM
  #8  
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Year: 94
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Originally Posted by cruiser54
Si.
Yes, i was saying it as a statement, someone said cps yet he has spark, atleast he said he does
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