Jeep Grand Cherokee 1994

Install a new crank shaft sensor. I had the same problem with my wife's Jeep. It would run fine fore days at a time then quit. When the crank sensor goes out their is no spark or injection of fuel into the engine. This is a Hall Sensor. They can be intermittent, and affected bu heat. If your Jeep will not start, try freeing the sensor and see if it starts. Cold Freeze is used in electronics to test

if you have theft security problems if you jump start the vechicle it still wont crank.have battery load tested and checked battery could be weak.your current drain can be caused by many things, like radio,faulty power lock, dome light remain on,faulty pcm,faulty alternator,faulty heater blower motor relay.

you need to have the battery tested at autozone and your alternator soounds like your alternator is not putting out enough power or else you have a loose wire somewhere

could be a bad connection to battery, starter or even a bad alternator. get them all checked out. if its not any of those then start checking fuses.

check voltage regulator

when your car does not start it could be a number of things starting with your power system check your battery conections alternator output and battery voltage they should all read 12.6 volts

Is Is your battery up to par? If so, Check the ground cable and hope its not the starter.

Check the alternator that might be your solution

Sounds like the inline fuse popped. It is located in the wire that comes from the alternator to the battery. The alternator is sending out the juice, but it can't make it to the battery. I sincerely hope that this gets you on the road again. Best wishes and God Bless.
Bryon

Check the Belt Tensioner. If the Tensioner is not Keeping the Belt Tight it will Drain the Battery Pretty Fast.Please Rate my Response, I need all the Help That I can Get! Thanks!