I have a 2005 dodge ram 1500 4.7 144xxx

Asked by Mar 15, 2017 at 12:10 AM about the 2005 Dodge Ram 1500 ST Quad Cab SB 4WD

Question type: Maintenance & Repair

Upon starting it backfires slightly idels fine sounds
great after backfire then when I drive it shakes
sounds like it has exhaust leak but checked it's fine
codes read random misfire and misfire cylinder8
replaced plugs and all 8 coil packs cleared codes
still does the same thing runing premium fuel and
injector cleaner through it now at mimium power
seems fine until u hot the gas then the shaking and
misfires  start any help would be awesome

2 Answers

85,395

Possible causes; Faulty spark plug (s), Faulty ignition coil (s), Clogged or faulty fuel injector (s), Intake air leak, Fuel injectors harness is open or shorted, Fuel Injectors circuit poor electrical connection, Ignition coils harness is open or shorted, Ignition coils circuit poor electrical connection, Insufficient cylinders compression, Incorrect fuel pressure.

not firing on #4? mine is doing same thing turned out a stretched timing chain. good in the pedal but at an idle misses . do you have noise like rocker arm clicking could have a valve stuck down also

Your Answer:

Dodge Ram 1500 Experts

  • #1
    Dan Connell
    Reputation
    7,120
  • #2
    pudgybear
    Reputation
    6,810
  • #3
    dandyoun
    Reputation
    6,380
View All

Related Models For Sale

Used Ford F-150
122 Great Deals out of 11,224 listings starting at $369
Used Chevrolet Silverado 1500
124 Great Deals out of 11,389 listings starting at $4,500
Used Dodge Ram 2500
3 Great Deals out of 79 listings starting at $2,975
Used GMC Sierra 1500
84 Great Deals out of 11,066 listings starting at $4,499
Used Toyota Tundra
31 Great Deals out of 1,540 listings starting at $5,488
Used Toyota Tacoma
21 Great Deals out of 1,618 listings starting at $5,795
Used Dodge Charger
43 Great Deals out of 924 listings starting at $4,490
Used Ford F-250 Super Duty
22 Great Deals out of 890 listings starting at $3,995
Used Dodge Dakota
140 listings starting at $4,999
Used Nissan Titan
17 Great Deals out of 933 listings starting at $7,995
Used Chevrolet Colorado
11 Great Deals out of 2,493 listings starting at $3,995
Used Ford Mustang
28 Great Deals out of 1,228 listings starting at $5,995

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.