Dodge 2002 Ram Van 1500, 5.2 Engine intermittent runs with no codes or not with "no bus" in odometer

40

Asked by Jun 22, 2016 at 06:15 PM about the 2002 Dodge Ram 1500

Question type: Maintenance & Repair

My Dodge Van 1500 run great in the early morning reading the codes with a
reader tool show the PO748 code related with the transmission, after the
sun came up and the temperature came up a little the van refuses to run,
the engine turn great, all the light on dash board on, gauges on zero or
down, engine turn but not start, all the sensors in the engine test, the
magnetic pickup and the crankshaft are new all ready replaced. the weird
thing is the engine run normal every day at morning or night, during the day
refuse to run. I do not know if the problem is from the PCM, I found the
solenoide and pressure regulator on the trans need to be replaced.

2 Answers

13,485

SO it displays, "no bus" in the odometer? this means a module has failed and is not communicating the information on the K line of the CAN BUS system the PCM vehicle computer may need to be replaced Chrysler / Dodge / Plymouth are the most common computer failure vehicles.

40

Well to know, now my question is why runs great in the morning (this morning I insert the key in the switch turn to start and runs like a champ), if the computer is bad?. Any answer for this phenomenon?. Can the transmission sensors be involve in that? Forgive my ignorance, what do you call "module" . Thanks for the help.

Your Answer

Dodge Ram 1500 Experts

  • #1
    Dan Connell
    Reputation
    6,550
  • #2
    pudgybear
    Reputation
    6,440
  • #3
    dandyoun
    Reputation
    5,830
View All

Related Models For Sale

Used Ford F-150
3,265 Great Deals out of 223,478 listings starting at $1,200
Used Chevrolet Silverado 1500
2,709 Great Deals out of 175,181 listings starting at $955
Used Dodge Ram 2500
155 Great Deals out of 5,493 listings starting at $2,661
Used GMC Sierra 1500
1,182 Great Deals out of 64,912 listings starting at $999
Used Toyota Tundra
699 Great Deals out of 34,411 listings starting at $1,500
Used Toyota Tacoma
712 Great Deals out of 45,875 listings starting at $2,500
Used Ford F-250 Super Duty
424 Great Deals out of 49,460 listings starting at $1,899
Used Dodge Dakota
84 Great Deals out of 3,638 listings starting at $1,499
Used Ford Mustang
598 Great Deals out of 39,738 listings starting at $1,988
Used Dodge Ram 3500
87 Great Deals out of 2,306 listings starting at $5,999

Used Cars For Sale

2010 Dodge Ram 1500 For Sale
73 Great Deals out of 1,434 listings starting at $5,388
2009 Dodge Ram 1500 For Sale
46 Great Deals out of 1,067 listings starting at $4,990
2008 Dodge Ram 1500 For Sale
70 Great Deals out of 1,646 listings starting at $2,950
2007 Dodge Ram 1500 For Sale
69 Great Deals out of 1,470 listings starting at $1,988
2006 Dodge Ram 1500 For Sale
52 Great Deals out of 1,269 listings starting at $2,650

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.