2008 Ram 1500 4.7 intermittent misfires multiple cylinders

Asked by Auto Feb 05, 2024 at 03:53 PM about the 2008 Dodge RAM 1500 SLT Quad Cab LB RWD

Question type: Maintenance & Repair

Just bought a tired old truck to support remodel project. 218k miles. Appears
all original, no leaks, good oil pressure, good temp, starts right up, idles,
does not smoke, no hot cats smell.  Lots of P codes, lots of misfires,
sluggish, hard to get over 40mph, have driven about 60 miles on 3 road
tests. CPS is good. Cleaned throttle body with TB cleaner. Replaced plugs,
checking each cylinder for compression and inline spark tester with the new
plugs (all were good, cyls 120-150psi), good fuel pressure, but proactively
replaced all injectors. No change in performance after any of this work.  
Wondering what to check next?

1 Answer
202,475

Ed92626 answered 2 months ago

Just d diagnostics, starting with trouble codes. On an old beast like this, I'd suspect that there's a lot going on, so address one code at a time. It's tedious work.

Mark helpful

Your Answer:

Related Questions

  • 2008 Ram 1500 4.7 intermittent misfires multiple cylinders 1 Answer

    Just bought a tired old truck to support remodel project. 218k miles. Appears all original, no leaks, good oil pressure, good temp, starts right up, idles, does not smoke, no hot cats smell. Lots o...

    2008 Dodge RAM 1500 SLT Quad Cab LB RWD

    -

    Maintenance & Repair

  • 2003 Ram 1500 4.7 2 Answers

    I have a 03 4.7 ram that randomly shuts down when making left hand turns. It acts like the engine is turned off, or the computer is not recognizing the engine died. Basically every once and a whil...

    2003 Dodge RAM 1500 SLT Quad Cab 4WD

    -

    Maintenance & Repair

  • Overheating dodge ram 1500 4.7 1 Answer

    2003 dodge ram 1500 4.7. Took out t stay because over heated. Still doing so not loosing any fluid no leaks and pressure on top hose aven after pleading air from system

    2003 Dodge RAM 1500

    -

    Maintenance & Repair

  • 2005 Dodge Ram 1500 4.7 7 Answers

    I ha e a 2005 Dodge Ram with the 4.7. It has a ticking noise but It sounds like it’s coming from the bottom, but it isn’t loud enough or sound like a knock. Is it possible that it is a exhaust mani...

    2005 Dodge RAM 1500 SLT Quad Cab LB 4WD

    -

    Maintenance & Repair

  • 2002 dodge ram 1500 4.7 1 Answer

    My dodge ram burns oil only when I take off from a light or when I hit the gas from a dead stop. What does this mean?

    2002 Dodge RAM 1500 SLT Plus Quad Cab RWD

    -

    Maintenance & Repair

Shortcuts

Search Dodge RAM 1500 Questions

CarGurus Experts

  • #1
    Dan Connell
    Reputation
    19,880
  • #2
    dandyoun
    Reputation
    15,170
  • #3
    Gene Arnett
    Reputation
    11,710
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford F-150
295 Great Deals out of 13,390 listings starting at $3,888
Used Chevrolet Silverado 1500
169 Great Deals out of 7,405 listings starting at $6,995
Used GMC Sierra 1500
124 Great Deals out of 7,846 listings starting at $5,500
Used Dodge RAM 2500
27 listings starting at $7,900
Used Toyota Tundra
26 Great Deals out of 946 listings starting at $10,698
Used Toyota Tacoma
34 Great Deals out of 781 listings starting at $9,975
Used Dodge Charger
33 Great Deals out of 870 listings starting at $5,995
Used Dodge Challenger
25 Great Deals out of 770 listings starting at $11,480
Used Chevrolet Silverado 2500HD
25 Great Deals out of 1,585 listings starting at $5,990
Used Ford F-250 Super Duty
22 Great Deals out of 733 listings starting at $3,990
Used Jeep Grand Cherokee
130 Great Deals out of 3,647 listings starting at $5,555
Used Dodge Durango
59 Great Deals out of 1,829 listings starting at $6,987
Used Jeep Wrangler
137 Great Deals out of 5,905 listings starting at $6,500

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.