91 xj crank no start new engine
12-08-2015, 12:51 PM
#1
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Model: Cherokee
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:
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:
12-09-2015, 05:57 AM
#5
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
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
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
12-13-2015, 07:24 AM
#7
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
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12-13-2015, 06:05 PM
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Year: 94
Model: Cherokee
Engine: 4.0L I6
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