On the fuel rail there should be a green cap romove it and there is like a tire valve there press it with a screw driver and see if fuel squirts out with pressure
SOURCE: 2003 Jeep Grand Cherokee check engine light stays
go to autozone they will check codes for free
SOURCE: 1995 jeep grand cherokee wont start
Code 11 is related to the crankshaft sensor. This is a common failure.
Sensor is located on bellhousing on drivers side, even with the flywheel. Your symptom can also be related to a fuel problem which usually will set no codes or incorrect codes related to emissions etc.
I would go with the CPS at this point though. Fuel filter should be serviced at least once a year. Regardless of the outcome I would change it as a maintenence item.
good luck
SOURCE: 96 jeep grand cherokee 4.0
change the computer .... PCM get a used one it fixed mine had same problem
SOURCE: 1994 Grand Cherokee Jeep wont start
It is likely one of your battery cables loose. Same thing just happened to me today. What you need to do is first lock the doors, and close them. Then you need to disconnect, and reconnect the battery cable, then if the security lights still blink you must use your key to unlock the door, then it should stop blinking, and start just fine.
SOURCE: PCU replacement for Jeep Grand Cherokee WJ
car_parts.com can probably get you the part. I would be more suspicious of the Crankshaft position sensor. In my experience, PCM on chrysler vehicles are very reliable with good self protection devices. (not that the never go bad) In 23 years of working on vehcles I may have replaced 3 or 4 on the Jeep/chrysler. 90% of the cases I have worked on with your symptoms ended up with a crankshaft position sensor. If the check engine light does not go out while the engine is cranking then you probably have no crank signal. It is located on the left side of the bell housing near the rear of the engine block. Will have two 10mm bolts holding it in place. New one will come with a piece of felt or paper stuck to end of it. This is for spacing purposes. Hold it in against flexplate and tighten bolts. Paper will come off when engine is turned over. Done
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