I have a 1994 wrangler.Must crank starter multipul times for fuel to reach fuel rail on 2.4 or 2.5 4 cyl.Once finally starts will run great all day and start. next day starts hard again.I replaced fuel pump still same.I did notice there was not 12 volts at pump with ignition on until cranking mode.Please help if can.
SOURCE: 94 Jeep Cherokee won't start
I believe the green wire is a pulse from the distributor and its a ground signal. I could be wrong since is been a while since i left the jeep dealer...I would take the coil out (2 bolts on most) and take it to autozone. They can test it in minutes for free. Either that or the ignition module but more common is coil.
SOURCE: 94 Cherokee won't start
check the ecm and the crankshaft positioning sensor both will keep it from firing
SOURCE: 89 Jeep Comanche Fuel Pump. Won't start after running great.
Replace the crankshaft position sensor
SOURCE: 2007 Jeep Wrangler Unlimited Crank-No Start. Replaced FP.
Hey Tim take a look at this, will this help ?
SUBJECT:
No Engine Crank Or No Engine Start Due To Electronic Lockup Of The WCM / SKREEM
OVERVIEW:
This bulletin involves the replacement of the Wireless Control Module (WCM), and if
equipped, the replacement of the Electric Steering Column Lock (ELV). The WCM is also
referred to as the Sentry Key Remote Entry Module (SKREEM).
MODELS:
2007
SYMPTOM/CONDITION:
The customer will experience a no engine crank AND a no engine start condition. Also, the
remote keyless entry (RKE) system will not operate. This condition may be due to an
electrostatic discharge (ESD) from the ignition key into the Wireless Control Module
(WCM), causing the WCM to electronically lockup. This condition may occur more
frequently in dry and/or cold weather conditions where a sufficient electrostatic charge is
more easily produced. This condition is corrected by the replacement of the WCM
DIAGNOSIS:
1. With the condition present (i.e. the vehicle in the no crank / no start condition), connect
the StarSCAN® scan tool to the vehicle.
2. Turn the ignition switch to the “ON” position, and power up the StarSCAN®.
3. If the WCM is electronically locked up, the StarSCAN® will display the WCM as being
“off bus”.
4. If the no crank / no start condition is present, and the WCM is “off bus”, then reset the
WCM by temporarily removing the IOD fuse (with the key out of the ignition switch),
wait for 10 seconds and then reinstall the IOD fuse.
5. With the IOD fuse reset having been performed, verify that the vehicle will now crank,
start, and run.
6. If the condition is temporarily corrected by performing the above steps, and if the part
number of the WCM is earlier than the part number of the WCM listed in the part
reference table in the Service Bulletin Parts Required Section below, then perform the
Repair Procedure.
333 views
Usually answered in minutes!
×