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another no start thread

Old 05-25-2011, 10:48 AM
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Default another no start thread

my search hasnt turned up anything under my circumstances.
did a head gasket swap on my friends 89 xj. all back together except for no coolant in the system yet. we have tried to fire but get no start. cranks, have fuel, have spark. thought about cps but ran great before we started. i can here it actually fire on a cylinder or two durring the crank but it wont fire up and idle.

yesterday i thought it was valve lash, but with a little research i discovered you cant actually adjust them. everything is back togther how it should be. my mind is just warped on this. while we had it appart we also did dist cap and bug, wires, plugs.


if any more info is needed let me know.
suggestions?
Old 05-25-2011, 10:55 AM
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is the firing order correct haynes manual is incorrect in the picture going by the screw on dist cap
Old 05-25-2011, 10:58 AM
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i did the firing order by my 93 cherokee. not the manual.
Old 05-25-2011, 11:00 AM
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Default looks like this going by the cap screws

correct placement of wires
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Old 05-25-2011, 11:02 AM
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double checked all connectors correct?
Old 05-25-2011, 11:05 AM
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yeah. at first we missed the cps connection because the plug fell back onto the bell housing. plugged it in and you could here it actually fire sometimes.
we have double and triple checked. the biggest issue i think was air hoses though. even with pictures it took a long time to get everything back together.
Old 05-25-2011, 11:08 AM
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map sensor connected
Old 05-25-2011, 11:10 AM
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the sensor yes. the hose broke so we had to elc tape until we can find one in the junk yard.
Old 05-25-2011, 11:14 AM
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Originally Posted by xjandrew
my search hasnt turned up anything under my circumstances.
did a head gasket swap on my friends 89 xj. all back together except for no coolant in the system yet. we have tried to fire but get no start. cranks, have fuel, have spark. thought about cps but ran great before we started. i can here it actually fire on a cylinder or two durring the crank but it wont fire up and idle.

yesterday i thought it was valve lash, but with a little research i discovered you cant actually adjust them. everything is back togther how it should be. my mind is just warped on this. while we had it appart we also did dist cap and bug, wires, plugs.


if any more info is needed let me know.
suggestions?
spark,fuel how about injector pulse?
Old 05-25-2011, 11:16 AM
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yeah, i pulled the rail\injectors while he cranked and i could clearly see them pulsing.
Old 05-25-2011, 11:21 AM
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injector plugs on correct order
Old 05-25-2011, 11:22 AM
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i no all these question seem simple but im not there so we gotta go thru it
Old 05-25-2011, 11:24 AM
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hahah yeah i understand and thanks for all the help.
they werent labeled when we removed them. so i am not 100% sure on that. but i did put them all but in the dirrection they wanted to go. im 90% sure they are correct. i tried to find a way to oreder them but i couldnt find anything.
Old 05-25-2011, 11:27 AM
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are you pupming gas pedal while trying to start
Old 05-25-2011, 11:28 AM
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first try he did. but i told him not to pump the pedal after we tried cranking the first time, in fear of it just flooding with gas.

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