07 Cherokee 3.7 V6 - Starting Issue

[andrebey]

Hi All,

Hopefully someone can assist on the following,

The Jeep was all good and driving with no issues. Started it yesterday morning and nothing, turns over, there is a spark, fuses are all good, tested with another battery, checked earth wires and everything I could think of.

Then last night all of a sudden it started, tried a few times and it was good. This morning again nothing,..!!

What could be causing this??

 

[k-2]

engine is cranking bbut will not start, spark is good?

If that is correct check fuel pressure with a gauge, a weak pump wll not perform in he colder season.

 

[JPNinPA]

If you turn the key on do you hear the fuel pump?
As mentioned check the fuel pressure.
You could try turning the key to on for five seconds then off for one then on for five then start. Do the on off 2-3 times. If this works the check valve is shot. Good news is you could do this trick until the pump fails.
Another item is the crank sensor may do this before completely failing.
Any codes?


JPNinPA
Using Jeepz.com app