1993 Jeep Grand Cherokee Repair Question
Mileage: No information provided.
Hard to start
1993 Jeep Grand Cherokee 6 cyl All Wheel Drive Automatic 299000 miles
93 GC Limited 4.0 is hard to start
if i just turn to run position i will not start
if i turn to on 3 times then turn to start it fires right up and then shut off and then start right up on first crank
but if it sits for an hour or over night it wont start
ive changed air filter, oil filter, oil, fuel filter, fuel pressure regulator, plugs, wires, cap, rotor
next is either o2 sensor, crank or cam shaft sensor,feul pump, or ecu
not sure what to do
any help would be great!!!!!!!!!!
Asked by millardo21Answer
Hi millardo21, Welcome to 2carpros and TY for the donation
Lets start by actually checking the fuel pressure if its within specs and get back with the readings we start here
i will go to advance auto and see if they have a fuel pressure gauge that i can rent and will post my finding tomorrow thanx for the help will be donating more $$$ upon the resolution of my problem!!
It was a problem with the cars computer i wasnt sending a ground when the key is turned to activate the pump for 2 sec. Found this after a $400 fuel pump replacement now a $100 computer!!!!
GLAD ITS FIXED!!!!!!!!!!
Im glad you got it going and TY for coming back with the fix, for the others to benefit from it-Sounds like the computer control of the fuel pump relay ground circuit to the coil side of the relay is defective