WITH 4.7 "DISTRIBUTOR LESS" WILL NOT START ANY IDEAS?
2000 Dodge Durango • 207,000 miles
Wife drove durango and said the eng light came on then went off, came home and parked it. The next morning it turns over but will not start. I turn the key on and can hear the fuel pump run, sprayed gas into throttle body = same thing, no start. I put a spark indicator between # 1 plug and coil = indicator does not light up. I checked the cam and crank sensors they look to be fine as dose all wiring and grounds. I ohms tested all 8 coils and all are within .6 to .9 ohms. I checked the input voltage to each coil and got readings that range from 4.7 V. dc to 24.1 V. dc ( I can't find any specs on that voltage? ). With help I decided to change out the PCM = No change. I then replaced the crank sensor = No change. Battery is good with a full charge. I am out of ideas, cam sensor? I don't think it stop eng from starting? any other ideas??
March 29, 2012.
March 29, 2012.
Also, "looking" at a sensor doesn't mean anything. On older vehicles both the camshaft position sensor and crankshaft position sensor signals were needed for the computer to turn on the ASD relay. On later models, and I suspect on yours, the engine will run on just one of those sensors once it's already running, but it won't START on just one because the computer doesn't know which coil to fire first. The Check Engine light told you a fault code was set that would have indicated which signal was missing.
What I would recommend now is to find a mechanic with the Chrysler DRB3 scanner so you can see which signal is missing, then check the voltage to that sensor. Many independent mechanics use the Chrysler scanner because it will work on other brands of cars '96 and newer. Other scanners might display the same information. You're looking for the cam and crank sensors, and during engine cranking, they'll be displayed as "No" or "present". About half the time a missing signal is due to a defective sensor. The other half of the causes include corroded or stretched connector pins, corroded splices, broken wires, and things like that.
Mar 29, 2012.
Mar 29, 2012.
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