Will Not Start Just Crank and Crank

[Uticagreens]

I have a 2003 Ran 1500 with a gas guzzling 4.7L. When starting the vehicle I inadvertently took my hand off of the key at the very instant that the engine was igniting. The engine did not start and now will not start. The yellow “check engine” light came on. The codes were P0685 (Auto Shutdown Relay Control Circuit) and P0688 (Auto Shutdown Relay Sensor Circuit Low). I checked all of the relays and ran a continuity test on the control circuit line, but could not find anything wrong. After resetting the codes with my Maxi-Scan (MS509) code reader I was unsuccessful when trying to start the engine, but this time, the yellow “check engine” light indicated code P0129 (barometric pressure low). I tested the MAP sensor, but it too checked out to be good. After resetting the yellow “check engine” light again the vehicle still will not start. The yellow “check engine” light came back on but it is not indicating any code. I’ve been told by another backyard auto enthusiast that I may need to have the computer reprogrammed. I want to get your expert advice before I have to remortgage the farm to pay the Dealer’s exorbitant hourly rates.

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[jacobnbr1]

I will usually not advise anything outside the scopes of manufacturer testing. The reason for this is because the maker of the vehicle is the one who knows best and is absolute.

What that actually means is in the event that an issue would have to go to the American courtrooms the Judge will only take consideration within the engineered testing provided by the manufacturers and that information is perfected even if it is the wrong path or the long way to to a conclusion.

[Ryker Gabriel]

Quoted From mrquinchito:

Well seems like I am not the only one with this problem, I have a 1993 Dodge Ram 350 I see spark but not fuel, so checked t relays in off position n everything looks ok, check in ingnition on n the wire that goes to t pcm indicates about 7 to 8 volts, I guess it should indicate 0 cause the pcm supplies t ground, if somebody can help me, on this one thanks

Thanks bodies

[Author]

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