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misfire

  1. Gen 3 Dodge Ram
    Picked up a ram 1500 5.7 HEMI. I’ve been all through this truck and no idea what’s wrong. Changed alternator. Naught new battery. I’ve done plugs. Tested coils all good. Tested injectors all good. Valves are good. Havnt done a compression test. The idle on cold start is about 1500. And it’s...
  2. ASK A DODGE RAM TECH!
    Hey guys. I’ve looked all around and can’t seem to find an issue quite like mine. Went outside Saturday morning to warm the truck up, started just fine and long enough to get warm. Came outside to leave and the truck was shut off. Hard to start without giving fuel. If it starts it shakes and...
  3. 5.9L V8 Specific Topics
    Hello everyone, I'm dropping this post here because I need some guidance, and assistance with a random, and traveling misfire, hard starts. P0300 My truck is a 5.9L Gasoline Currently my truck suffers a random misfire, a large amount of power loss, heavy shuddering at 1500-1600 RPMS under...
  4. HD RAM - GENERAL DISCUSSION
    Hello everyone. I'm wondering if anyone has some ideas on a issue I'm having with my van. If the van sits for a day or two it will idle rough for a short time then it will clear up and run perfectly. If the van sits for over a week, it will run rough long enough to set an error of cylinder...
  5. 2016 Dodge Ram Forum
    So I had the MDS problem with the frozen roller and ruined my cam at 106,000 mi on my 2016 1500. I pulled the motor apart and put non MDS cam and lifters in, got the tuner and removed MDS from the computer, and put it all back together. I didn't pull the oil pump and assumed my timing was...
  6. LD RAM - General Discussion
    I need help please. I have a 05 1500 with the 5.7 engin. Recently it started giving me trouble. Just after start up while driving you will loose power and the rpms jumps up and down and idle really rough. It spits and shakes. And it takes forever to speed up.After about a minute of doing that...
  7. 5.9L V8 Specific Topics
    About a week ago I started my truck up and it started misfiring; previous day ran fine. Codes P0300, P0306, and P0308. Changed the cap, rotor, plugs, wires, and coil. There are no vacuum leaks and the plenum is sealed with no oil in the intake. The misfire is most apparent at 40-55 MPH when it...
  8. ASK A DODGE RAM TECH!
    2003 dodge ram 1500 5.9l v8 (190k miles) So changed spark plugs, thermostat, temp sensor, wires. The truck overheated this past summer and we changed all of the above within the summer. This fall we started having a misfire which has gotten progressively worse. Cleaned everything with seafoam...
  9. 2011 Dodge Ram Forum
    Hoping someone could give me an idea of what is wrong with my truck. 2011 Ram 1500, 67000 miles, have a cylinder 4 misfire. A little backstory, noticed the idle was rough for a day or so and then the CEL came on. Read the code and cylinder #4 misfire. Only notice the misfire at idle, higher...
  10. 5.7L (345 cu in) HEMI V8 Specific Topics
    I have a 2010 Ram 1500 5.7L that owes me nothing.. 271,000 miles. It recently developed a misfire on cylinder 5, so I decided to replace the plugs. While replacing the plugs, I noticed that the boots on the ignition coils were deteriorating (on cylinder 5 - voila!) so I decided to replace...
  11. 3.7L PowerTech V6 Specific Topics
    So I have a 2008 dodge Dakota with the 3.7. its throwing the p302 code for cylinder 2.maybe 1,000 miles ago it was throwing a random misfire code so i did plugs and coil packs and it fixed the problem but now throwing misfire for #2. i moved the coil around and the problem stayed at #2. i...
  12. 2009 Dodge Ram Forum
    I'm new to the forums so bare with me lol.Recently I bought my 2009. Drove it fine with no issues. Then all of a sudden I get bored P0300, P0302, and P0306 eventually. I've replaced all 16 plugs. 2 injectors and still I can feel a "shake" when idling. No codes sense doing all this. I've been...
  13. 5.9L V8 Specific Topics
    So, I have a 2000 Ram 1500 with the 5.9L V8 Magnum. When I bought the truck, it had a cylinder misfire, which was eventually diagnosed to be bad valves. The engine was completely torn down, and inspected when the heads were done, and everything, including the timing chain, crankshaft seals, and...
  14. 2014 Dodge Ram Forum
    I tried everything for checking multiply forum and google searches and still can't figure it out. First off I replaced 02 sensors (upstream) MAP sensor, and plugs. (Reset the ecm after everything) I have a 2014 Ram 1500 5.7 with 77k miles. It's literally driving me crazy trying to figure what...
  15. 5.7L (345 cu in) HEMI V8 Specific Topics
    At only 4500 miles engine had very rough idle, shaking and MIL light. This issue happened all of a sudden with no warnings. Pulled the codes myself and got P14011 and P2302. Took it to dealer and diagnosed bad coil on cyl#1. While at dealer they also updated software (three updates) and threw in...
  16. 2013 Dodge Ram Forum
    Hi everyone. New Ram 1500 Owner here. I just traded in my Tacoma for a 2013 Longhorn edition 4x4 w/ 5.7 Hemi (56Kmiles) about two weeks ago. Everything seemed fine on the lot and driving it around. Carfax checked out, but this weekend I took it for about a 4.5hr roadtrip and noticed when I had...
  17. 5.7L (345 cu in) HEMI V8 Specific Topics
    Hello, I have been searching everywhere for an answer to a problem I've been having with no luck, I've found some useful stuff lurking on this forum so hopefully someone can help me out. I bought a 2009 Ram 1500 SLT Quad Cab with the 5.7 in October, it has some minor modifications and 119K...
  18. 5.9L V8 Specific Topics
    so it finally happened. got a p0300, p0302 and p0307. before the light came on, it sputtered going up a slight incline and I thought I heard a corresponding knock. my first reaction was to tell my wife to shut it down and pull over, but it quit as soon as the road leveled out and the engine was...
  19. 5.9L V8 Specific Topics
    Hi I have a 2000 Ram 2500 5.9 gas. Background on it is I got it 6 months agl and it hadnt seen the road in 2 years. Guy thought the trans was bad. It wasnt. Anyway. It ran horrible so i replaced intake gaskets, plugs, wires cap rotor, distributor and all sensors except MAP sensor. It ran fine...
  20. 5.9L V8 Specific Topics
    I have a 1995 ram 1500 with a 360. It starts good,it idles good. If you take it real slow it will get up to highway speeds but if you accelerate just a little harder it bucks,bogs down and sputters badly. It only does it under a load. I have replaced distributer cap,rotor,plugs,wires,pick up...
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