misfire

  1. A

    Cylinder 1 misfiring — but only when I drive faster

    The car vibrates a bit more at idle (though maybe that’s just in my head because of anxiety). It also vibrates somewhat more when driving in reverse, but I haven’t driven the car for a long time. The car was sitting idle for about 7 months in around 110 degrees Fahrenheit weather. Acceleration...
  2. 4d6n2

    Cylinder Misfire Led to Full Cam/MDS Delete Build + Suspension & Audio Overhaul

    What’s up yall — I’ve got a 2014 Ram 1500 5.7 HEMI with 144k miles, and I figured it was finally time to post up after diving deep into a full-on performance and refresh build. It started a couple months ago when I got a check engine light. The truck started running rough, struggling to...
    • 4d6n2
    • Thread
    • cam hellcat lifters mds camshaft mds delete misfire misfire cam lifter tsp
    • Replies: 32
    • Forum: Engine & Performance
  3. tx1500ram

    2012 Ram 1500 5.7L Hemi cylinder 5 misfire

    I just bought a 2012 Ram 1500 5.7L which has around 135k miles. While driving or idling at low speeds the car will shudder and when coming to a stop it'll sort of like lurch to a stop and jitter. Then once it reaches a full stop it'll continue to shake very hard. The spark plugs have already...
  4. tx1500ram

    Ram 1500 5.7L Hemi engine vibrating

    I just bought a 2012 Ram 1500 5.7L which has around 135k miles. While driving or idling at low speeds the car will shudder and when coming to a stop it'll sort of like lurch to a stop and jitter. Then once it reaches a full stop it'll continue to shake very hard. The spark plugs have already...
  5. R

    5th Gen 2023 Ram | 5.7 Hemi Etorque Misfire Fix

    Hi All, I bought a 5th gen 2023 ram w/ the 5.7 Etorque earlier this year. The truck (only 10k miles) was in the shop for 38 days due to a P0306 & P0300 code. Dealership couldn't figure out problem. Dealership contacted Ram Engineers and opened a star report. The dealership was very kind to...
  6. T

    2008 5.7 p2311 and cylinder 4 misfire

    I know there is a lot of similar post s but I need some guidance checking what else I need to check. I bought a very used 2008 ram 1500 4x4 cheaply to help my neighbor, who was having money issues. It has only the one issue misfire on cylinder 4 (p0304) and also (p2311) Ignition Coil 4...
  7. S

    2025 Ram 1500 Big Horn CEL @ 1350 Miles

    Posted this in 5thGenRams forum, wanted to reference it here if some people arent in that forum as well as this one, just for awareness. I purchased a 2025 Ram 1500 Big Horn (with the standard output hurricane engine) on the 29th of June. Only had like 30 miles on it, rode smooth, absolutely...
  8. D

    2014 3.6L Misfire Cylinder 2

    Hello, I am trying to help my brother diagnose a cylinder 2 misfire on his 2014 Ram 1500 3.6L. He has already replace the ignition coil on that cylinder with no improvement. I checked the number 2 injector with my PicoScope and it shows a good waveform except that it is about .365 ms shorter...
  9. H

    Help! What would you do next? Hemi misfire and low power

    2009 1500 hemi 5.7 with 265,000 mi on it. Yes I have the hemi tick. Yes I have a bit of an exhaust leak. Had those for years with the engine running fantastic. Those are not the problems right now. Last week the truck started lacking in power. Then when it was cold, about two blocks from home...
  10. C

    2009 Ram 1500 5.7 MDS - weird #5 misfire problem

    I have a weird thing happening at 135K miles, with a clean well-maintained, original-owner 2009 Ram 1500 Hemi MDS. It’s actually two things that are probably related: After a cold start, it runs fine. I drive about 1 minute and if/when it kicks into eco/MDS mode, it runs poorly (95% sure due...
  11. D

    Hemi 5.7 MDS Lifter Test.

    Let me give you some background. My truck is a 2009 1500 5.7. I blew the engine like 9 months ago [ceased completely] replaced with an engine from a truck that had been set on fire and also had bad cams and lifters. I suspect the owners of the truck where that engine came from might have burned...
  12. P

    Need help!! Code p307 5.7 hemi

    I replaced my cam, lifters, oil pump, cam phaser, timing chain and guides, pushrods, coil packs (accel), spark plugs, new gaskets and deadbolts, vvt sensor, mds solenoids (mopar), moved injectors around, tested connections and wiring to coilpacks and injectors (all good) I've removed the valve...
  13. O

    mds lifter missing pins, rod bent

    So, I know the pins don’t have to line up with the hole in the lifter, but has anyone had where they can’t see the pins at all? Just re-did the cam, lifters, etc… Fired it up and had a cyl 1 misfire. Turned out intake rod seriously bent up. Turned out brand new lifter for exhaust had no real...
  14. R

    2009 5.7 rough idle until warm. Any ideas?

    Hello, 2009 5.7 hemi with almost 200,000KM on it. The truck started idling rough or driving really bad at low RPM. It vibrates badly. At high RPM it goes away and when it warms up it also goes away. The codes thrown were; P0300 - Multiple Cylinder Misfire P2017 - Intake Manifold Runner...
  15. I

    Dealer recommends engine replacement for @63k miles

    Had the hemi tick the past month. Had a misfire code on one of the cylinders. They said one of the rods are likely bent. Dealership recommends a cam and lifter replacement for 10k or engine replacement for 14k on my 2015 ram v8 with 63000 miles on it. Might just pay the diagnostic and take to...
    • inthespeedlane
    • Thread
    • blown motor cams dealership engine engine replacement hemi tick lifters misfire misfire cam lifter
    • Replies: 17
    • Forum: Engine & Performance
  16. L

    P0301 Help

    I have a 2011 Ram 1500 SLT 4WD 5.7 Hemi with 183,000 miles. These are all the codes I have currently: -P0301 cylinder 1 misfire -P0456 evap system leak (I have a small exhaust leak so self explanatory) -P0153 O2 sensor 2/1 slow response -P0133 O2 sensor 1/1 slow response -P0430 Catalyst system...
  17. J

    P206/P306 Intermittent Failures

    I've recently gotten stranded twice in the past week. Background: I've had these faults before in December 2022. I replaced the spark plugs, the coil on plug , and the fuel injector. I also cleaned the other fuel injectors. The problem cleared until May. The first failure occurred after about...
  18. H

    5.7 Hemi "blew up" by dealership?

    I have a 2015 5.7 Hemi with 140,000 miles First of all, I am no mechanic so bear with me. Bought this truck new in 2015, serviced regularly and never had a single issue until about a month ago. The malfunction indicator light came on and I noticed I was getting approx 2.5 MPG less than normal...
    • HCook
    • Thread
    • 1500 2015 5.7 hemi lifter lifter failure misfire piston rod ram ram 1500
    • Replies: 81
    • Forum: General Discussions
  19. A

    2009 HEMI Misfire without tick

    Afternoon all, Looking for some help on my 09 5.7L. I bought it with a cylinder three misfire. The truck runs at idle, but not well. The misfire seems to go away past 1K rpm. No ticking or noises at all from the engine. I have rules out plugs, coil, and injector. So what next. Thanks for...
  20. H

    Irregular signal sent to cyl 1 ignition coil

    2010 ram 1500 ST 4x4 5.7 hemi with 195000 miles. Been having cylinder 1 misfire and hemi tick that has been progressing lately. Tried to fix the cyl1 misfire and have swapped spark plugs and coils but misfire continues. I was worried it could be a broken wire or bad connector so I used a timing...
  21. MP9C

    In-depth look into p0300

    Hey everyone, First post here due to my newly acquired Ram. Specimen on hand 2011 5.7 Bighorn 190k Maiden voyage was 2.5 hours across the state pretty much without issue. Ended up with a o2 sensor code for a bad sensor and a P0308 for a bad coil. The old sensors looked original so they...
  22. M

    2011 HEMI Misfire P1416 (I've tried everything)

    BLUF: Catastrophic lifter/CAM failure pictures attached for your time. 2011 RAM 1500 Sport with the 5.7, 194k miles. Had the lifter issue a couple years ago, started a long road of repairs that have led to my first post here. I am NOT mechanically inclined past what I've had to teach myself...
  23. J

    Barely runs , p0300 codes 2012 5.7

    I was driving the truck home yesterday and all the sudden it wanted to die out , would restart but only running on a few cylinders. Got it home and would barely run , full tank of fuel , removed the line from the pump and put a gauge in it , 60 psi at key on , same with cranking , note that in...
  24. D

    2005 Dodge Ram 1500 4.7 Head gasket or cracked head

    I have a 2005 Dodge Ram 1500 4.7 liter engine non-flex. I know in some capacity I am getting coolant into my cylinders. I'm not sure if my head gasket is bad or could it be a cracked head. I bought this truck used back in January so I don't know a lot of history on the truck, unfortunately. I...
  25. W

    P0303 code

    Alright. About a month ago my 1998 ram 1500 popped up with a p0303 code. I got this code a couple years ago, cleared it and it never came back until a month ago. At first I thought it would be on the ignition side of things. Replaced spark plugs, wires, distributer cap, rotor and coil wire. They...

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