2018 Ram 2500 Fuel Pump/ TIPM Ongoing Issues

[SantaJangle]

Hello Ram Forum. I am looking for wiring schematics for the fuel pump ground and the ground connection from the TIPM so I can make sure the connections are good and proper.

My saga - 2018 Ram 2500 Laramie (135,000 miles) issues started at a gas station last spring. After getting gas, it cranked and did not start. A guy walked by and said "I know what that is... your fuel pump is going." I did get it started and it ran great.

Then given days, weeks, and a couple months I ended up replacing the fuel pump (Watched several YouTubes) with one from Oreillys. Precision Brand about $250 with tax. Still didn't work. I tested both old OEM pump and new pump out of vehicle and both worked. I put both (one at a time) in the vehicle and neither one would work. (Watched more YouTubes) Come to find out there is a fuel pump relay in the fuse box (the fuse box real name is called the TIPM - Total Integrated Power Management) that is not an easy "pull old one out and put a new one in" relay.

It's actually an integrated relay on the circuit board. (Watched more YouTubes) I then found out it may not have been the fuel pump at all and the relay went bad. The bad news is, for the average person, replacing the relay is not an option which means buying a new TIPM. This is not a cheap option and there are many stories online about TIPMs and dealers and used versus new

Another option is bypassing the relay with an add-on relay with a wiring harness. (Watched more YouTubes) This was actually a fix that dealers used in previous years for a recall because of similar issues.

There is another super simple and potentially permanent option, and that is to use a jumper wire in the fuse panel that will both supply power to the fuel pump and bypass the bad fuel pump relay. I also did this and the new fuel pump worked great most of the time and I have driven a couple thousand miles. Once in a while, my fuel pump will not turn on (uugghh) and yet everything seems to be correct. (Watched more YouTubes)

I am hoping the new fuel pump is still good that it is something else causing the issue that it is easier to fix. (Watched more YouTubes)

I am now thinking there might be a corroded ground wire causing my intermittent fuel pump issue.

My Mrs. is leary going anywhere in my truck and I want her with me and to feel safe. I need my sleigh to fly dependably to my many appointments every day.

Currently, I have not replaced the TIPM but I am getting closer to that possibility. (Watched YouTubes and looks pretty easy)

If you are experiencing "crank and no start", you might save some time and money by diagnosing the problem.

This has been an adventure for me and I hope this can be helpful to others too.

Thank You Ram Forum for any help.

Well after several more Youtubes and a talk with a mechanic, I went back in and tested the power at the plug and there is 12 V at the plug. That seems to eliminate electrical and points to the fuel pump. I expected to get more than a few months service out of a fuel pump. Some have warned about Precision pumps and go with OEM. Others say Precision pumps are good. I don't know.

 

[Burla]

did your bypass work? then you are all good, but also if bypass fixes it then you know it was the tipm. the solder joints fail in the tipm and then it is useless, now you can fix them with some electrical know how, check the YouTube's dare I say...

TIPM Fuel Relay Test and Bypass Solutions - Most 2007-2021 Dodge, Chrysler, Ram, Jeep, VW Vehicles

Visit https://verticalvisions.com to build your own, order from us, or obtain additional details. We do not sell these on Amazon. If your 2007-2021 Dodge, ...

youtu.be

Replacing a bad fuel pump relay soldered to pcb. TIPM fusebox Chrsler, Dodge, Jeep and VW's Routan

If you're in need of service or assistance: -ECU Repair Services: https://keyworks.us -DIY/Pro Resources: https://autoelectronics101.comYou can also suppor...

youtu.be

there is a better one out there that shows it better, but you can fix tipm.

 

[SantaJangle]

Thank You for responding. Yes, the bypass jumper wire mostly worked for the past few thousand miles. There was a few times that it didn't and I went in and moved the jumper wire a bit and then it seemed to work again. Right now, it is not starting and no sound from the fuel pump. When I can hear the fuel pump then it will start. That is why I'm thinking it might be a ground wire issue and that is why I want a wiring diagram schematic to find the specific ground. i will watch the YT you sent.

OK. I watched the videos. The top video is the one I watched where I learned about, and then bought the jumper wire from Vertical Visions. I talked with Jason and I paid $$$ for overnight shipping. That is how I have been able to use the truck until yesterday.

The second video looks pretty simple but I don't have that kind of work space or proper equipment.
Again Thank You

 

[Burla]

Thank You for responding. Yes, the bypass jumper wire mostly worked for the past few thousand miles. There was a few times that it didn't and I went in and moved the jumper wire a bit and then it seemed to work again. Right now, it is not starting and no sound from the fuel pump. When I can hear the fuel pump then it will start. That is why I'm thinking it might be a ground wire issue and that is why I want a wiring diagram schematic to find the specific ground. i will watch the YT you sent.

OK. I watched the videos. The top video is the one I watched where I learned about, and then bought the jumper wire from Vertical Visions. I talked with Jason and I paid $$$ for overnight shipping. That is how I have been able to use the truck until yesterday.

The second video looks pretty simple but I don't have that kind of work space or proper equipment.
Again Thank You

this guy is great

Chrysler / Dodge : TIPM Repair - No Wipers

In this video I help my sister out by repairing her TIPM (totally integrated power module) on her 2014 Dodge Grand Caravan 3.6L. The customer complaint was, ...

youtu.be

 

[Wild one]

Thank You for responding. Yes, the bypass jumper wire mostly worked for the past few thousand miles. There was a few times that it didn't and I went in and moved the jumper wire a bit and then it seemed to work again. Right now, it is not starting and no sound from the fuel pump. When I can hear the fuel pump then it will start. That is why I'm thinking it might be a ground wire issue and that is why I want a wiring diagram schematic to find the specific ground. i will watch the YT you sent.

OK. I watched the videos. The top video is the one I watched where I learned about, and then bought the jumper wire from Vertical Visions. I talked with Jason and I paid $$$ for overnight shipping. That is how I have been able to use the truck until yesterday.

The second video looks pretty simple but I don't have that kind of work space or proper equipment.
Again Thank You

For ****$ and giggles the next time it doesn't work,give the bottom of the tank a good swat with your fist,if it kicks in,you might have a fuel pump going bad.

 

[BroomtownRam]

I am going through the same nightmare as well. I have a 2018 Ram 2500 Tradesman 6.4 Hemi with 90 k. Replaced the fuel pump over a month ago ($ 2000k) ( I have also replaced my transmission and ABS under extended factory drive train warranty earlier this year) and still having intermittent problems cranking weeks later. If I take of the positive battery lead and re attach after a few minutes it will crank. The dealer's response was to trade it in and get a new truck. I just had the truck picked up again for non start and taken back to the dealer for the second time since the original repair.

 

[Ibriyn]

2011 ram 2500 5.7 hemi

Tpim was replaced 2 yrs ago.
Replaced fuel pump now twice in 2 months.
Replaced crank shaft sensor.


Tried the Tpim bypass but still doesn’t force pump to run.

I have looks like 9v at connector on pump, dead battery I charged overnight. Still can’t get any start. Just crank.

What am I missing??

 

[MetallicA]

2011 ram 2500 5.7 hemi

Tpim was replaced 2 yrs ago.
Replaced fuel pump now twice in 2 months.
Replaced crank shaft sensor.


Tried the Tpim bypass but still doesn’t force pump to run.

I have looks like 9v at connector on pump, dead battery I charged overnight. Still can’t get any start. Just crank.

What am I missing??

That battery is doing you no favors. Change that puppy and start fresh with your diagnostics

 

[Ibriyn]

That battery is doing you no favors. Change that puppy and start fresh with your diagnostics

Will try!
Thank you for the quick feedback

 

[MetallicA]

Will try!
Thank you for the quick feedback

No problem at all! Best of luck, I hope that solves your issues.

 

[K3lt3c]

I'm having what I suspect are TIPM issues as well, but my problem is the opposite, as the pump stays on all the time. I'm working on a 2017 Ram 1500 (Laramie) and even if I pull fuse 70 (fuel pump fuse) the pump will not shut off.

The TIPM is currently out and I do have the ability to replace the relay, but I want to rule out other issues first. The concerning part is, from the very limited wiring diagrams I am able to find, the fuse is the last thing in line between the relay and the pump. So theoretically, the pump should not be able to run with the fuse out...but it does.

I see there is a module/controller of some sort in the circuit and there is a chance this is a PWM (pulse width modulation) pump. Can anyone verify if that is in fact the case? If so, could that module somehow provide voltage to the pump without interaction from the TIPM/fuse (fuse removed)?

HELP!