Hello, i have a 2004 jeep grand cherokee larado with the 4.0 just out of the blue it started to shut off in reverse and a day later it started at a stop light and now i can only go about 3 min of run time and it shuts off no light or any are on and it ran great parked it one night and the next day it started any info would be great thanks

 

Could be a crank sensor, could be the cam sensor, could be any number of things.

 

Have you CHECKED the codes or are you just not seeing a CE light?

Have them checked.

 

had it on to different code tester nothing pulls up both garages say the key or fuel pump