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  1. C

    5.9 Misfires on 4 cylinders

    Update... I got the new engine installed and running. Runs like a champ, smooth and strong. No engine codes, no knocks, no intake whistling, etc... I do have to adjust the transmission cable at the TB because shifting from 2nd to 3rd is a little rough and the engine sometimes dies when...
  2. C

    5.9 Misfires on 4 cylinders

    Damn, that sucks. I didnt look to see if it were warped or not... I mean, it didn't seem warped and the bolts torqued evenly. Fingures crossed I guess.
  3. C

    5.9 Misfires on 4 cylinders

    So the new engine is all cleaned up and ready to go in. I've replaced the cap and rotor, thermostat and thermostat housing, upper and lower radiator hoses, that little bypass hose, all new hose clamps, installed the Hughes plenum plate, cleaned all threads with tap, cleaned/painted exhaust...
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    5.9 Misfires on 4 cylinders

    Just bought a 5.9 motor online from LKQ with 116K miles. It's got a 6 month, 6k mile warranty. Obviously I'm going to go thru the motor before installing it. With that said, am I supposed to transfer anything from the old motor to the new? Like flywheel, torque converter, distributor...
  5. C

    5.9 Misfires on 4 cylinders

    Right? lol. I bought the truck for cheap because it had a "blown head gasket" (per the seller)... The rest of the truck looked to be in decent shape and with 160K on the odometer, so just a blown head gasket made sense for the price I paid. I figured the engine would look like the rest of the...
  6. C

    5.9 Misfires on 4 cylinders

    Yeah, that's true. I plan on pulling this motor and buying a low mileage motor to put in its place. Now I just have to source one locally. I've already ordered the beefy plenum plate and gasket kit, so I'll definitely swap those out on the new motor prior to install... as well as the...
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    5.9 Misfires on 4 cylinders

    There's also a little on cylinder 2.... notice the bottom of the piston. Right head, with close up of cylinder 2.... So I'm not sure that machining these things are even possible... or worth the $$.
  8. C

    5.9 Misfires on 4 cylinders

    It's not just new heads that's needed... Here are some pics of cylinder 3 piston detonation.... Here is the left head... with a close up of cylinder 3. As you can see, the heads, the piston, and the cylinder itself is wrecked. I MIGHT be able to get the machine shop to machine the block...
  9. C

    5.9 Misfires on 4 cylinders

    Thanks for the advice Skyramman. I'm in Las Vegas and finding these Z code 5.9 motors is proving more difficult than I imagined. So hopefully this motor isnt beat to shit when I go take a look at it. I'll be sure to keep everyone posted. Thanks for all the help guys.
  10. C

    5.9 Misfires on 4 cylinders

    So I pulled the engine apart today to replace the head gaskets and noticed number 3 piston detonation. That was the same cylinder with the burned up spark plugs. Also, the head gaskets looked fine. Leads me to believe that the block may be cracked. So with 163K miles, my options are this...
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    where to buy sport bumper cover

    Bump. I'm looking for one too. I'm about to browse the junkyards.
  12. C

    5.9 Misfires on 4 cylinders

    That's true. Trust NO ONE! lol. But I've been meaning to pick up a compression gauge anyway... The mechanic said that he had all plugs pulled and coolant squirted out of a couple of the cylinders while he was testing a different cylinder. It would be easy to duplicate that and see it for...
  13. C

    5.9 Misfires on 4 cylinders

    Gotcha. Thanks for the heads up. I'm going to send the heads to a machine shop to have them checked out and replace them if need be. As of now, I've ordered an entire head gasket kit (with valve cover gaskets, intake/exhaust gaskets, etc...), new head bolts, new plenum bolts, plenum gaskets...
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    5.9 Misfires on 4 cylinders

    Welp... its a blown head gasket. I'll be picking the truck up tomorrow and start tearing it apart. The mechanic DID find coolant in the cylinders. He also thinks the heads are warped. I'd really expect to have more codes than just a misfire. Anyway, with that said, what should I expect...
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    5.9 Misfires on 4 cylinders

    Hey Yeret, Thank you for your reply, very informative. I just drove the truck to a reputable shop on my side of town to do the compression testing and diagnostic for me. Hopefully they can point me in the right direction. I'll be sure to post their findings. As for the temp being around...
  16. C

    5.9 Misfires on 4 cylinders

    Hello all, first time post on this forum, so thank you for having me. Well, as the title says, I have multiple misfire codes on my 2001 5.9 magnum that I just bought. The code scanner reads P0300, P0301, P0302, P0303, P0304, and P0305. I bought this truck for cheap with 160k miles and the...

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