My 2005 Jeep grand Cherokee dash board lights flashes on and off intermittently and at night the headlights flicker. Help

 

By dashboard lights, do you mean the lights for the gauges at night, or the warning lights? Either way, it may be your multifunction switch (the dimmer switch for the interior lights) that may be bad, and you might have to replace it. Do your interior lights (reading lights) also flash on and off?

 

My Jeep grand Cherokee 05 5.7 will sometimes turn on the first time and sometimes it will take couple of cranks to start but it runs fine, though all my dash lights will blink on and off even when car is on and my fan will turn on and off , when I accelerate the fan will too ... Has injector number 3 connected directly with 2 and my pcms injector 3 wire is cut out anyyy heeellp please