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  #1  
Old 05-06-2014, 10:32 AM
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Unhappy 06 Hemi Stutter 30-40 MPH

Hello all, I have an 06 WK Hemi, when driving under normal load between 30-40 MPH the whole vehicle shakes just a little bit. The tach doesn't move and it hasn't thrown any codes. I took it to a shop, they think one of the coils is misfiring. But cant tell which one or two. Please help, I want to start adding mods but until this isn't rectified, nothing happens. Has new plugs and TB.
Thanks in advance
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Old 05-06-2014, 06:27 PM
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Re: 06 Hemi Stutter 30-40 MPH

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Originally Posted by gjhjeepWK06 View Post
Hello all, I have an 06 WK Hemi, when driving under normal load between 30-40 MPH the whole vehicle shakes just a little bit. The tach doesn't move and it hasn't thrown any codes. I took it to a shop, they think one of the coils is misfiring. But cant tell which one or two. Please help, I want to start adding mods but until this isn't rectified, nothing happens. Has new plugs and TB.
Thanks in advance

did the issue start with the new plugs? the hemi's are kinda picky about what plugs are used.
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Old 05-06-2014, 06:46 PM
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Re: 06 Hemi Stutter 30-40 MPH

No, it was happening b4 and I replaced with plugs from dealership.


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Old 05-20-2014, 09:34 PM
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Re: 06 Hemi Stutter 30-40 MPH

Quote:
Originally Posted by gjhjeepWK06 View Post
Hello all, I have an 06 WK Hemi, when driving under normal load between 30-40 MPH the whole vehicle shakes just a little bit. The tach doesn't move and it hasn't thrown any codes. I took it to a shop, they think one of the coils is misfiring. But cant tell which one or two. Please help, I want to start adding mods but until this isn't rectified, nothing happens. Has new plugs and TB.
Thanks in advance

It could be a lot of things but wires, packs, plugs, PCM, pushrod, vacuum leak, or electronic throttle control. Kinda hard to tell without any other indications...


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Old 05-20-2014, 09:49 PM
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Re: 06 Hemi Stutter 30-40 MPH

New plugs, new throttle body, all connections checked, coil packs directly connected to plugs( so no wires) only time is 36-42 mph


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Old 05-20-2014, 10:54 PM
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Re: 06 Hemi Stutter 30-40 MPH

Quote:
Originally Posted by gjhjeepWK06 View Post
New plugs, new throttle body, all connections checked, coil packs directly connected to plugs( so no wires) only time is 36-42 mph


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Sorry was thinking of my 05 hemis crossover system with the wires. You'll need to pull the valve covers to check the rods. Have you done a seafoam treatment?


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Old 05-20-2014, 10:55 PM
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Re: 06 Hemi Stutter 30-40 MPH

No, have not done seafoam


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Old 05-20-2014, 11:07 PM
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Re: 06 Hemi Stutter 30-40 MPH

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Originally Posted by gjhjeepWK06 View Post
No, have not done seafoam


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Worth a shot if it's a sticky lifter


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Old 05-20-2014, 11:09 PM
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Re: 06 Hemi Stutter 30-40 MPH

Thanks


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Old 05-21-2014, 08:30 PM
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Re: 06 Hemi Stutter 30-40 MPH

I have the exact same issue in the same speed interval-- usually happens at around 36 mph. If I give it some more throttle it smoothly right out and accelerates. I notice that it seems to happen on a slight incline in the road at steady throttle. I also changed: the plugs, checked the coil packs, egr value, completely cleaned the TB, reset the TB, sea-foamed the intake manifold, put fuel injector cleaner- multiple times- all to NO avail. Problem still exists. No codes at all! I now have no clue and it really bothers me. Any ideas would be appreciated. Thanks.
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Old 05-21-2014, 09:38 PM
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Re: 06 Hemi Stutter 30-40 MPH

I did a crankcase, vacum system seafoam clean, and it seams to have fixed the problem, took it out a few times at the 35-40 range with no stutter. Gonna give it a few days and report back.


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Old 05-21-2014, 09:48 PM
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Re: 06 Hemi Stutter 30-40 MPH

Quote:
Originally Posted by gjhjeepWK06 View Post
I did a crankcase, vacum system seafoam clean, and it seams to have fixed the problem, took it out a few times at the 35-40 range with no stutter. Gonna give it a few days and report back.


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Did you put it in the fuel tank as well?



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