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

160

Asked by Cazurro 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

42,415

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.

4 people found this helpful.
160

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.

1 people found this helpful.

Your Answer:

CarGurus Experts

  • #1
    Dan Connell
    Reputation
    20,270
  • #2
    dandyoun
    Reputation
    15,290
  • #3
    Gene Arnett
    Reputation
    11,760
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford F-150
321 Great Deals out of 14,968 listings starting at $1,712
Used Chevrolet Silverado 1500
202 Great Deals out of 5,975 listings starting at $2,975
Used GMC Sierra 1500
148 Great Deals out of 7,258 listings starting at $3,950
Used Dodge RAM 2500
23 listings starting at $9,975
Used Toyota Tundra
35 Great Deals out of 1,184 listings starting at $8,500
Used Toyota Tacoma
55 Great Deals out of 1,071 listings starting at $8,708
Used Dodge Durango
46 Great Deals out of 2,266 listings starting at $5,500
Used Chevrolet Silverado 2500HD
16 Great Deals out of 1,285 listings starting at $8,995
Used Ford F-250 Super Duty
24 Great Deals out of 1,204 listings starting at $7,995
Used Jeep Grand Cherokee
109 Great Deals out of 3,238 listings starting at $4,995
Used Chevrolet Tahoe
24 Great Deals out of 911 listings starting at $11,900

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.