Re: Need help with 09 hemi miss
[Re: rickb67]
#1600550
03/30/14 09:11 PM
03/30/14 09:11 PM
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Joined: Apr 2005
Posts: 178 Tidewater, VA
TMCCuda
member
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member
Joined: Apr 2005
Posts: 178
Tidewater, VA
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Just guessing re- diagnostics- maybe a compression test or cooling system pressure test for a bad head gasket. How about an injector noid light to see if wire to the injector is bad?
1970 Plymouth Barracuda
1994 Ram 1500 4x4 5.2L
2004 Ram 1500 4x4 5.7L Quad Cab
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Re: Need help with 09 hemi miss
[Re: rickb67]
#1600552
03/31/14 09:50 AM
03/31/14 09:50 AM
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Joined: Dec 2009
Posts: 20,673 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,673
in a cattle trailer down by th...
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I had one 5.7 in a Durango that had a very slight coolant leak into the cylinder. This engine had been apart previously at another dealership and it looked like they drug the head across the floor scarring the deck surface. You didn't mention it being apart previously but it could be something similar. Get a combustion gas detector kit that is used to detect combustion gasses in the cooling system.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: Need help with 09 hemi miss
[Re: rickb67]
#1600554
04/02/14 03:44 AM
04/02/14 03:44 AM
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Joined: Jan 2007
Posts: 1,668 Mi,U.S.A.
mike s
top fuel
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top fuel
Joined: Jan 2007
Posts: 1,668
Mi,U.S.A.
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Long shot but check the under hood fuse/relay block.They are open to the elements and corrosion is a problem.
Leave the gun.......take the Cannoli's....Mike
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Re: Need help with 09 hemi miss
[Re: mike s]
#1600555
04/02/14 01:32 PM
04/02/14 01:32 PM
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Joined: Apr 2005
Posts: 178 Tidewater, VA
TMCCuda
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member
Joined: Apr 2005
Posts: 178
Tidewater, VA
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09 is a VVT MDS motor correct? Upper rpm miss makes me think something with the timing/ valvetrain/ cam phasing.
Another thing could be the intake runner change from short to long or vice versa. I wonder if soot in the intake will cause a sticky spot? Lean or rich condition maybe.
I know nothing about the VVT system just spit-balling here.
1970 Plymouth Barracuda
1994 Ram 1500 4x4 5.2L
2004 Ram 1500 4x4 5.7L Quad Cab
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Re: Need help with 09 hemi miss
[Re: Kern Dog]
#1600558
04/03/14 10:05 AM
04/03/14 10:05 AM
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Joined: Dec 2009
Posts: 20,673 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,673
in a cattle trailer down by th...
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Quote:
I'm leaning toward a VVT issue as well. I'm told that the cam timing is advanced at low rpms and retards as rpms increase. A rapid acceleration may result in a "lag" in the cam timing, resulting in an erratic signal from the cam positioning sensor. Why only cyl # 7 is affected, i'm not sure.
I would think this is not the case as it only is affecting one cylinder. If it was something like the VVT it would affect other cylinders as well.
Now having said that this engine is an MDS engine correct? I don't know what cylinders the MDS kills but there are four separate solenoids in the valley that control it, there could be a solenoid or harness problem if #7 is indeed one of the cylinders it kills.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: Need help with 09 hemi miss
[Re: rickb67]
#1600560
04/05/14 09:43 AM
04/05/14 09:43 AM
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Joined: Dec 2009
Posts: 20,673 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,673
in a cattle trailer down by th...
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Quote:
Now that makes sense. I have been thinking it almost has to be electrical problem. I will figure out how to test those solinoids.
I'm thinking a solenoid might be weak and under higher pressure it's leaking down.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: Need help with 09 hemi miss
[Re: rickb67]
#1600564
04/09/14 11:00 AM
04/09/14 11:00 AM
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Joined: Dec 2009
Posts: 20,673 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,673
in a cattle trailer down by th...
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Quote:
the lifter turned sideways and wore the cam out.
How did that happen? Either way unless you are the original owner and it's still under a powertrain warranty I doubt Chrysler will help but you would have to run it by the service manager at your dealer and see if the district rep may help.
Let me caution you though that if you are not a good customer at that dealership they may not be inclined to do anything. But keep in mind the magic word, please. It can't hurt to ask. Good luck.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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