Shudder and harshness in shift between 1st and 2nd on 2007 Chrysler 300

I just had the updated software put in by dealer which should have fixed this. But it has not. What next??

by in Massena, NY on January 03, 2009
3 answers 1 comment
ANSWER by on January 05, 2009
Most repairs from the dealer have a warranty, Call them and explain that the updated software install didn't work and what do they suggest.
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ANSWER by on January 09, 2009
There are no software flashes availabe to correct a shudder condition on an 07, 300 with a NAG-1 (Hemi)transmission. I advise that you have a dealer check for proper fluid level. Fluid level must be checked with a CHRYSLER STAR SCAN tool monitoring fluid temp and a special dipstick. This is why the filler tube is sealed with a plastic cap. NAG-1 transmissions are known to have fluid leaks at the wiring connector adaptor. Fresh ATF-4+ Fluid may sometimes help the condition. Vehicles equipped with a V-6 engine have a different transmission.
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ANSWER by on February 16, 2009
Hi this is Scarlet in Ky...I just told another guy on here that I had mine looked at today due to shifting/idoling problems. My engine light was on so I had it hooked up to the computer and it said I have EGR Valve system fault, that the voltage signal from the EGR sensor A is too high for the engine operating conditions. I looked that up on here and it did say it can cause shifting/idoling problems. Have you had any issues with wheel bearings? I also have rt front wheel bearing bad. The race is stuck, 1st time I took it off you can freely see the ball bearings in the rotor. Went to take it back off yesterday to do all my repairs, tie rod end on driver side, we couldn't get the rotor back off this time????
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COMMENT by on February 21, 2010
The result of my shudder problem was the MDS. I found this out by using the auto stick when I encountered the shutter. The shutter would go away as soon I used the auto stick.