cylinder 8 miss fire

5

Asked by Jan 07, 2017 at 06:17 PM about the 2005 Dodge Ram 1500 SLT Quad Cab SB 4WD

Question type: Maintenance & Repair

I have an 05 ram 1500 5.7 hemi I have a miss on
cylinder 8 changed injector and coil swapped plugs  
did injector pulse test with scanner checked spark
checked compression it's 125-130 psi still missing
any ideas

3 Answers

87,415

Looks like you have covered what they say to do except that there may be an intake leak. Look for any type of vacuum leak, and try snugging up the intake bolts. One other thing is what is the compression in other cylinders? Between all the cylinders they say compression should not vary more that 15% from between the cylinders. If it does then it sounds like a miss.

1 people found this helpful.
68,005

What was compression on the other cylinders? The 125 to 130 reading may be a little low. Is there any ticking at the valve cover on that side of the engine. Have you checked to see if the push rod is bent or if the valve spring is broken?

1 people found this helpful.
81,505

I agree on the compression. Around 150 PSI or higher is usually about normal. 125-130 PSI sounds low to me. HTH. -Jim

1 people found this helpful.

Your Answer:

Ram 1500

Looking for a Used Ram 1500 in your area?

CarGurus has 8,885 nationwide Ram 1500 listings starting at $1,950.

ZIP:

Dodge Ram 1500 Experts

  • #1
    Dan Connell
    Reputation
    7,190
  • #2
    pudgybear
    Reputation
    6,950
  • #3
    dandyoun
    Reputation
    6,520
View All

Related Models For Sale

Used Ford F-150
2,227 Great Deals out of 186,956 listings starting at $1,200
Used Chevrolet Silverado 1500
1,773 Great Deals out of 154,146 listings starting at $1,995
Used Dodge Ram 2500
139 Great Deals out of 4,505 listings starting at $2,990
Used GMC Sierra 1500
666 Great Deals out of 56,035 listings starting at $1,500
Used Toyota Tundra
442 Great Deals out of 36,795 listings starting at $2,499
Used Toyota Tacoma
471 Great Deals out of 49,980 listings starting at $2,997
Used Ford F-250 Super Duty
431 Great Deals out of 35,911 listings starting at $1,999
Used Dodge Charger
416 Great Deals out of 31,710 listings starting at $1,900
Used Chevrolet Colorado
262 Great Deals out of 36,890 listings starting at $1,777
Used Ford Mustang
352 Great Deals out of 39,215 listings starting at $1,995
Used Dodge Dakota
84 Great Deals out of 2,988 listings starting at $895
Used Nissan Titan
245 Great Deals out of 21,988 listings starting at $1,995

Used Cars For Sale

2006 Dodge Ram 1500 SLT Quad Cab SB 4WD For Sale
13 Great Deals out of 218 listings starting at $4,500

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.