Truck cranks but won’t start

[Ant_si_08]

Good evening all.
I have a 2018 ram 1500 v8 it has 70k miles on it. Long story short went to home depot got material auto started the truck while loading it the truck died. I crank it and it won’t start. I get it towed back to the house and narrow it down to a fuel pump I just replaced it today and it still won’t get fuel up to the rails I have 3/4 tank of gas and when starter fluid is sprayed it starts but dies. Anyone know what other things it can be can it be a fpcm? Thanks

 

[jws123]

This may be the famous TIPM fuel relay failure I just tore mine apart re soldered in a new relay for $5 works great or you can buy a bypass board sticks in the fuse panel il link it later or others will chime in

 

[Ant_si_08]

I checked the fuses and all are fine I don’t see a relay for the fuel pump. I could be missing it. It’s annoying on how random this happened

 

[jws123]

I checked the fuses and all are fine I don’t see a relay for the fuel pump. I could be missing it. It’s annoying on how random this happened

its inside the tipm on the backside of the board

How I change the Fuel Pump Relay in Dodge / Chrysler / Jeep TIPM

In this video you follow along as I replace a fuel pump relay in a 2011 Dodge Ram TIPM module saving hundreds of dollars.Relay: https://amzn.to/3FZnkXbsolder...

www.youtube.com

Amazon.com

 

[jws123]

Do some tests before jumping the gun tho see if you have power at the pump check wires ect also scan for codes.

 

[Ant_si_08]

I jumped the pump with my tester it works. I checked the voltage it shows then drops. When I plug the pump back in and cycle the ignition I don’t hear the pump running and no fuel to the rails. I did get a code for

U0109 Lost Communication With Fuel Pump Control Module.

P0463 Fuel Level Sensor "A" Circuit High

P0113 Intake Air Temperature Sensor 1 Circuit High

 

[jws123]

Try this to test your pump/wiring if the pump works it will be the relay just make sure your fuse panel matches this one never worked on a 2018 should be the same but cant confirm.

09+ Dodge TIPM BYPASS | Truck Won't Start?

If you have a 2009+ Dodge product and it will crank and not start, this may help! My 2011 Ram 1500 was doing exactly that when I read about the TIPM system ...

www.youtube.com

 

[chri5k]

Must be something about Home Depot and RAM trucks.

My truck suddenly refused to start after I got home from Home Depot.

Crank but no start. I sprayed starting fluid and it's coughing but wouldn't start. Without starting fluid it would just cranking then an ugh then cranking then an ugh ... cycling. I swapped the fuel pump relay fuse, same issue. So I got home from home Depot hauling a pallet of cement, unloaded...

www.ramforum.com

 

[jws123]

Must be something about Home Depot and RAM trucks.

My truck suddenly refused to start after I got home from Home Depot.

Crank but no start. I sprayed starting fluid and it's coughing but wouldn't start. Without starting fluid it would just cranking then an ugh then cranking then an ugh ... cycling. I swapped the fuel pump relay fuse, same issue. So I got home from home Depot hauling a pallet of cement, unloaded...

www.ramforum.com

Its always at the worst times ahahah.

 

[Ant_si_08]

Well today I played with the relays in the truck the asd and I got it to fire up but then I died after a min and very rough idle I have a fpcm coming tomorrow just to rule out that it’s that. After playing with the relays I started to hear the pump run then turn off without the truck started like it was priming the line so that is a good sign I guess