2015 RAM 2500 Diesel won't start

Asked by GuruD5N8ZN Feb 07, 2024 at 11:22 AM about the 2015 RAM 2500 ST 4WD

Question type: Maintenance & Repair

My son had water get in his Diesel and he has changed the fuel lines, injectors,
pump and cp3.  The pump is losing it's prime and the truck won't start but it
turns over.  He did change to FASS pump.  He is getting a code that says low
fuel pressue and he noticed that the transmission is not reading when you turn
the key.  Please help this mom get her car back.

1 Answer
307,535

Gene answered 3 months ago

Gear selector switch is the most common for the transmission not reading. Do the gears show on the scan tool? This sounds like an air leak in the fuel delivery system.

Mark helpful

Your Answer:

Related Questions

  • 2015 RAM 2500 Diesel won't start 1 Answer

    My son had water get in his Diesel and he has changed the fuel lines, injectors, pump and cp3. The pump is losing it's prime and the truck won't start but it turns over. He did change to FASS pump...

    2015 RAM 2500 ST 4WD

    -

    Maintenance & Repair

  • 2020 Ram 2500 won't unlock after remote started 3 Answers

    Dealer installed mopar remote starter in my 2020 ram 2500. Everything works fine until I remote start it . To unlock it sometimes I have to press the unlock button few times sometimes only a couple ...

    2020 RAM 2500 Tradesman Crew Cab 4WD

    -

    Maintenance & Repair

  • 2006 ram 2500 cooling system 1 Answer

    The thermostat went bad, my dad replaced it and didn't bleed the air. I've added over a gallon of fluid and it disappeared. He states that the temp gauge stays at the cold and goes no higher until ...

    RAM 2500

    -

    Maintenance & Repair

  • 2012 ram 2500 2 Answers

    My blower motor comes on and off won't stay on all the time. Check all connections and replaced the blower resister thinking that was the problem still no fix even replaced blower motor. Could the...

    2012 RAM 2500 Laramie Longhorn Crew Cab 4WD

    -

    Maintenance & Repair

  • 1999 dodge ram 2500 is the wiring harness the same as dodge ram 1500 and 2500 from 1998, 2000, 2001, 2002? 2 Answers

    1999 dodge ram 2500 is the wiring harness the same as dodge ram 1500 and 2500 from 1998, 2000, 2001, 2002?

    RAM 2500

    -

    Maintenance & Repair

Own this car?

Share your experience with others.

2015 RAM 2500

Write a car review

Review another car

Shortcuts

Search RAM 2500 Questions

CarGurus Experts

  • #1
    GuruNYT2V
    Reputation
    1,470
  • #2
    ARR1281
    Reputation
    490
  • #3
    terrelldspaulding
    Reputation
    420
View All

Know more, shop wisely

Search

Related Models For Sale

Used Ford F-250 Super Duty
1,327 Great Deals out of 43,337 listings starting at $2,995
Used RAM 1500
3,834 Great Deals out of 90,902 listings starting at $3,499
Used RAM 3500
477 Great Deals out of 19,082 listings starting at $12,795
Used Chevrolet Silverado 2500HD
1,057 Great Deals out of 30,771 listings starting at $499
Used GMC Sierra 2500HD
556 Great Deals out of 21,817 listings starting at $4,900
Used Ford F-150
6,076 Great Deals out of 134,072 listings starting at $1,100
Used Chevrolet Silverado 1500
4,256 Great Deals out of 127,860 listings starting at $2,995
Used Ford F-350 Super Duty
890 Great Deals out of 22,817 listings starting at $3,495
Used GMC Sierra 1500
1,970 Great Deals out of 68,040 listings starting at $2,199
Used Toyota Tundra
1,172 Great Deals out of 32,640 listings starting at $3,299
Used Toyota Tacoma
2,115 Great Deals out of 35,559 listings starting at $3,500

Used Cars for Sale

2024 RAM 2500 For Sale
39 Great Deals out of 35,670 listings starting at $38,581
2023 RAM 2500 For Sale
125 Great Deals out of 2,563 listings starting at $36,487
2022 RAM 2500 For Sale
178 Great Deals out of 2,199 listings starting at $25,975
2021 RAM 2500 For Sale
96 Great Deals out of 1,021 listings starting at $19,999
2020 RAM 2500 For Sale
81 Great Deals out of 854 listings starting at $15,299

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.