My truck has been a great truck. I use it about once a month and it has never let me down till now. It was running great when I parked it and now it just cranks wont start.

Factoids. No DTC codes present. I rented an OBD II and it was able to connect and query, but had no codes. I did an erase and re-cranked. Still no codes.

I tried a bit of starter fluid, no dice.

Fuel pump pressurizes (I can hear it)

Checked all fuses and relays. All are fine

Replaced coil, rotor and cap. (cap position is a real pain to get to!)

I have seen other posts, but have not found any resolutions.

Many thanks in advance.

Rick

 

Even tho your truck is cranking over, the pcms in our trucks are sensitive. If the battery voltage is off it might not start, either try a new battery or put the one you have on a charge and see if that works.

 

Thanks for the quick response! Checked the bat. 12.5 volts and cranks at speed. Still no start

 

probably cam or crank position sensor.

 

Agreed. my old truck sat for 2 months and 1 day i went to start it and it just cranked over and over. i changed everything but it turned out to be crank sensor. only thing tho is i would think the check engine light would be on if one of those sensors went bad.

 

Yup I would also think that a bad sensor would cause a DTC code to be present and the CEL would be on. However this is not the case. Was your light on when this happened?

Pretty much a head scratcher.

Is there a way to check these sensors without replacement?

Rick

 

yea my cel came on. i dont know if u can test them. maybe just unplug your negative battery cable, let it sit for a few mins then reconnect it and try to start it. when u disconnect negative battery cable it resets everything. give that a try. also you might want to google how to test those sensors. you might need a voltmeter.

 

Did the reset as described. Still no start and no CEL.

Thanks