My vehicle is a 2008 Dodge Ram 3.7 short wheel base, automatic.
I was driving and it just died, was told by a friend that it was more than likely a crank or cam position sensor.
I first attempted spaying gas directly into the breather and it did attempt to start, checked for spark at the plugs, there was none, so i took the suggestion and I replaced both.
Still no start but now i do have spark, I can spray gas into breather and it will start momentarily
if i remove the breather and spray directly into opening it will continue to run but as soon as i stop spraying gas in it dies.
I checked all fuses, all show to be fine.
I compressed the pressure test point on rail and there is no fuel pressure present, humm.
Next I pulled wires out of loom right at the fuel pump but not sure what I'm actually looking as far as feed (voltage) on particular wires.
I have searched to find no information
This is what I found,
Large Orange Wire - No voltage with key on or cranking ( I am thinking this should be a 12 volt supply wire to run pump ).
Large Black Wire - Ran test wire 12 volts to help check if the large black wire was ground it and it showed to be.
Small Black Wire - did not test it ? assume it is an additional ground not sure what for.
Small Blue Wire - did not test it ? assumed it was the feed for the tank level.
Does any of the wires get a signal to supply 12 volts to pump or is the wire constantly supplied to power pump ?
I did find information on bypassing a fuel regulator on a 2011 Dodge Ram, but the fuse blocks or what they call the TIPM is totally different that what I have, Ill attach a image of the style I have.
Any help would be greatly appreciated.
Would the fuel pump run, if I jumped 12 volts to the large orange wire ?
Would be great to know exactly how the voltage is applied and which wire actually supplies voltage to pump.
If I could get a wiring / color break down on the fuel electrical it would help tremendously.
Thank you in advance for help:smileup:
Wes Hamm
I was driving and it just died, was told by a friend that it was more than likely a crank or cam position sensor.
I first attempted spaying gas directly into the breather and it did attempt to start, checked for spark at the plugs, there was none, so i took the suggestion and I replaced both.
Still no start but now i do have spark, I can spray gas into breather and it will start momentarily
if i remove the breather and spray directly into opening it will continue to run but as soon as i stop spraying gas in it dies.
I checked all fuses, all show to be fine.
I compressed the pressure test point on rail and there is no fuel pressure present, humm.
Next I pulled wires out of loom right at the fuel pump but not sure what I'm actually looking as far as feed (voltage) on particular wires.
I have searched to find no information
This is what I found,
Large Orange Wire - No voltage with key on or cranking ( I am thinking this should be a 12 volt supply wire to run pump ).
Large Black Wire - Ran test wire 12 volts to help check if the large black wire was ground it and it showed to be.
Small Black Wire - did not test it ? assume it is an additional ground not sure what for.
Small Blue Wire - did not test it ? assumed it was the feed for the tank level.
Does any of the wires get a signal to supply 12 volts to pump or is the wire constantly supplied to power pump ?
I did find information on bypassing a fuel regulator on a 2011 Dodge Ram, but the fuse blocks or what they call the TIPM is totally different that what I have, Ill attach a image of the style I have.
Any help would be greatly appreciated.
Would the fuel pump run, if I jumped 12 volts to the large orange wire ?
Would be great to know exactly how the voltage is applied and which wire actually supplies voltage to pump.
If I could get a wiring / color break down on the fuel electrical it would help tremendously.
Thank you in advance for help:smileup:
Wes Hamm
