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Suggestions, crank no start Delete, solved

3K views 20 replies 6 participants last post by  JeepInABox 
#1 · (Edited)
'94 5.9l with nv3550 trans. engine cranks but wont start. changed the crank sensor and the coil with no luck. any suggestions?
 
#2 ·
auto shut down relay kicked in, that or the fuel solenoid is dead?
if its the relay un hook the battery and kill all power for minimum 15 minutes. then hook up and try again.
 
#6 ·
Is this a gasser? or diesel? as I was giving info for a diesel.

if its a gas then by all means clear the auto shut down relay by un hooking the battery. if your still struggling to get fire, the fuel rail has a schrader valve you can hook a gauge to. it should be making about 45-49 psi if you cycle the key to crank. if you have that and spark it should run.
im gonna guess gasser.... he said it has spark. if it has fuel pressure and spark it doesnt always mean it will run. there is still a pick up coil but your heading in the right direction.
 
#5 ·
Is this a gasser? or diesel? as I was giving info for a diesel.

if its a gas then by all means clear the auto shut down relay by un hooking the battery. if your still struggling to get fire, the fuel rail has a schrader valve you can hook a gauge to. it should be making about 45-49 psi if you cycle the key to crank. if you have that and spark it should run.
 
#9 · (Edited)
ok..... replaced cap and rotor. i jumped the fuel pump, it works. i pulled the batt for 8 hours. i swapped out the fuel pump relay and auto shut down. nothing! still wont fire.

could it be the igition module? how could i test it first?




fuel pump - worked when jumped
cap and rotor - new, replaced
coil - new, replaced
fuel pump relay - swapped
auto shut down - battery pulled, relay swapped
 
#11 ·
That's the problem I can't hear it when I'm in the heep. But I can hear it when I jumped the relay. I haven't had a second person to listen while I crank it. For argument sake let's say its not getting the 3 second prime when I crank it. What should I check?

Thanks
 
#16 ·
im thinking pick up coil if all that has been checked and workin. under cap and rotor in the dist, held in with 2 phillips head screws on the out side of the dist.
 
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