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  #1  
Old 02-17-2011, 04:01 PM
chubcityracing chubcityracing is offline
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Default New guy in search of some troubleshooting help!!

I have an '07 1500 Quad Cab with a 5.7 and roughly 72,000 miles. Recently, I've noticed a sort of shudder when driving between 40 and 50 mph. It's almost as though the truck isn't getting gas, but during normal acceleration, and when I put my foot in it, drives just fine. It seems to happen at low rpm's when it does happen in that speed range. I'm trying to keep from going to the dealer and shelling out some bucks if it's something I can fix myself. Any help you fellers can provide me with is greatly appreciated!!
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Old 02-17-2011, 04:04 PM
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Sounds like torque converter shudder if it only last a second or two.
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Old 02-17-2011, 04:51 PM
chubcityracing chubcityracing is offline
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Thanks for the reply...It doesn't really just happen for a second or two...It will do it for the duration of the time that I'm driving in that speed range, and it doesn't seem to do it all the time....It's kind of hit and miss...???
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Old 02-17-2011, 04:53 PM
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What all have you done as far as trying to correct it goes?
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Old 02-17-2011, 05:02 PM
chubcityracing chubcityracing is offline
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I'm just now starting research on it....Possibilities I see that have lead to other people getting the same thing (and I'm no mechanic)....maybe an EGR valve or TPS sensor..maybe the plugs?? I thought maybe a fuel delivery blockage, but since it runs fine other than in that range, I sort of ruled that out. I've checked the fluid, and the level is where it needs to be...Air filter is clean....I did have the check engine light come on about the same time this happened, but it went off a day or so later....When I check the codes to see if there are any, nothing comes up....
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Old 02-18-2011, 07:23 AM
chubcityracing chubcityracing is offline
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Did a little experiment on the way home from work this morning...What seems to be the issue is that when I'm at the low end of a gear, to a point where it should be downshifting, it doesn't....Just kind of lugs along a little bit, then finally drops a gear....?????
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Old 02-18-2011, 08:12 AM
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I'm guessing you tried scanning with a generic scan tool that doesn't pull manufacturer specific codes and that's why nothing came up. See if you can get the code and we can go from there.
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Old 02-23-2011, 10:12 PM
chubcityracing chubcityracing is offline
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Been busy with work...will get the beast in to be diagnosed next week....I appreciate your help with this!! Thanks
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Old 02-23-2011, 11:28 PM
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I had an EGR go bad and the truck ran fine, but threw a chk eng code, so I had it replaced. Several months later (between 4-5 years old), I started having some issues with the engine "bogging down." It happened while a friend with a RAM 1500 was in the passenger seat. He asked me if I was running 87 or 89 octane (I always ran 87). He said their truck did the same thing and a mechanic told him the Hemi's like 89. I checked the manual again and 89 is recommended, with 87 acceptable. I switched to 89 and all of my engine bog/lag issues went away.

There are far more knowledgable people on this board, but this is an easy thing to try.
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