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3rd Gen Ram Tech 2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

07 Transmission Issue Hard Down Shift

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  #1  
Old 03-13-2009, 09:34 PM
mshardee mshardee is offline
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Default 07 Transmission Issue Hard Down Shift

Just bought a 07 2x4 with the 4.7L, this is my first Dodge. I am a mechanic for Honda, so I am lost when it comes to my Dodge. My problem is when slowing down from over 40, around 28-25 mph, my truck down shifts very hard with almost a thump feeling. I have searched the forum and found nothing. Any help is greatly appreciated.
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  #2  
Old 03-13-2009, 10:12 PM
Ilovemytruck Ilovemytruck is offline
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Did u check fluid levels etc?
Does it do it everytime, or only sometimes?
You best bet is if its under warranty, to let them hook it up to the starscan and check things out. Did you do the turn the key on off, on off for three times leaving it in the on position to see if you can pull a code. A tranny code may pop up if you do it. That will help alot. The mileage bar should say "done" or P ????. If you get a number post it and well get back, if it says done and nothing pops up, your going to have to have a dodge tech sit in the car and replicate the problem for him, theyll hook it up to the star scan and see whats wrong.
Welcome to the forum sorry your first post is a problem with your vehicle...
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Old 04-22-2009, 06:53 PM
azdecals azdecals is offline
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Default any update?

Is there an update for this question?
I just bought an '07 and the transmission is doing the exact same thing. Is this a know issue? Is this big problems for my new truck?

It's got 34K miles so it's still under B2B warranty, but it sucks that it's doing that. It doesn't do it every time. It seems if I'm breaking hard, it does it much less, if I start to break, then just the the truck slow on it's own is when I get the biggest "jolt" on the down shift.

azdecals
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  #4  
Old 04-22-2009, 07:25 PM
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Sounds like either a sticking solenoid or the PCM needs reflashed if an update is available.
I haven't had any issues with my 08.
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  #5  
Old 04-22-2009, 09:27 PM
mshardee mshardee is offline
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I checked with dodge and there is no flash for the pcm with the trans that I have in it. Fluid level is good. One tech said it could be the front pump? Going round with my deal who sold it to me as 90day 3000mile drive train warrant. Any on else having this problem before?
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  #6  
Old 04-23-2009, 04:36 PM
azdecals azdecals is offline
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I haven't spoken with my dealer yet, but this TSB sounds like the problem we are having. I need to check to see if this is the transmission I have. I'm not to sure how I'd do that though. (the speed described is a little off, but it sounds like the problem we are having)

http://dodgeram.info/tsb/2007/21-019-07.htm

Symptom/Condition:
The customer may experience a harsh downshift from the transmission when coming to a stop. When a vehicle stop is initiated from 4th gear (around 40 Km/h or 25 MPH), the harsh downshift condition will usually occur as the vehicle decelerates to a speed of about 16 Km/h (10 MPH) . If the transmission is in 2nd, 3rd, 5th, or 6th gear, when the stop is
initiated, the condition will not be present. This may cause the condition to appear to be intermittent to the customer. Because the harsh downshift may occur below 16 Km/h (10 MPH), the customer may believe that they are experiencing a harsh 2 - 1 downshift.

Some customers may also experience a harsh 2-3 upshift during normal acceleration. This symptom is less common than the harsh coastdown shift.

azdecals
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  #7  
Old 04-23-2009, 07:25 PM
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That is the 6 speed auto trans behind the Cummins Diesel.
You should have a 545RE I believe.
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Old 04-24-2009, 03:35 PM
mshardee mshardee is offline
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That is correct. We have the 545RE which doesnt fall under the tsb. I cant beleave there is so let respones that others have had this problem before.
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  #9  
Old 05-06-2009, 01:50 PM
azdecals azdecals is offline
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Update:
I took my truck back to the dealer to have some dents removed (part of the purchase) When I dropped it off to told them I wanted them to check the trans as it was doing the hard down shift thing. What follows is the tech notes from the invoice:
c/s the trans clunks when it downshifts from above 45mph.
advise.
ck trans fluid. red and full. ck for codes. found no codes. ck cvis. ok withink speck. road tested. found trans had harsh downshift at 55 to 50 and harsh upshift again at 50 to 55. ck for software updates. found TSB 18-035-07 to reprogram tcm.
reprogrammed tcm. quick learned tcm. road tested. trans is now shifting within spec. mo 35523

Not sure where the 50-55 thing came from. I explained that it was happening for me at 25-28. They kept the truck over night and tested it again the next day. They drove it ~20-25 miles.

So far it seems that the update did fix the shift problem I was having. They also did a recall fix at the same time. It was recall j05 egr diagnostic monitor updated pcm
not sure if that had anything to do with it, just an FYI.

Hope the issue doesn't come back, and I hope you folks get your issue resolved.

azdecals

Last edited by azdecals; 05-06-2009 at 01:57 PM..
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  #10  
Old 05-06-2009, 01:57 PM
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HammerZ71 HammerZ71 is offline
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Good deal, glad to hear your issue is resolved. Thanks form coming back to post so that it may help others with the issue...
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  #11  
Old 05-07-2009, 04:33 PM
mshardee mshardee is offline
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azdecals what engine and trans do you have in your truck?
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  #12  
Old 05-07-2009, 05:18 PM
azdecals azdecals is offline
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It has the 4.7L V8 SFI OHV. I'm not sure on the trans. Is that info on one of the data plates? I didn't see it listed in my carfax report.

azdecals
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  #13  
Old 05-13-2009, 01:45 PM
chev20 chev20 is offline
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Default chev20

My 2007 Dodge Durango (4.7 liter V8) seems to be having this exact problem. It only seems to be happening when I am de-accelerating and it is intermittent. I have my Durango at the dealer now. I am going to send them a link to this website so they are aware I am not along in experiencing this problem. I will let you know how it goes.

chev20
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  #14  
Old 02-26-2011, 11:59 AM
nixont nixont is offline
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Default Another One Fixed

My 2007 Ram 1500 2wd was having the same problem. I took it to a dealer yesterday and he acted like it was pretty typical for the later model Chryslers. he flashed the firmware with an update and I haven't heard the noise since. Vehicle shifts very smoothly and controllably now.
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  #15  
Old 04-25-2012, 12:03 AM
dodgemexiguy dodgemexiguy is offline
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I bought 2007 Dodge Ram and I experienced the same problem a harsh downshift from the transmission when coming down around 35 MPH , I took my truck to the dealer but the transmission was out of warranty and I did not have money to pay it, so they told me ones you are here your pick up has a recall it was J05 EGR Diagnostic monitor we can do it now you don't have to pay!.
they fixed emissions Recall J05 reprogram PCM- EGR diagnostic Monitor
the Power Control Module (PCM) was reprogrammed,
so far it seem that after they reprogrammed and recall was done, it fixed the shift problem I was having!!
not sure if that had anything to do with it but I'm sooo happy you should try to reprogram the powertrain Module (PCM) or check if the Emission Recall J05 was done on your pick up if don't do it may it solve the problem.
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Old 04-25-2012, 09:30 AM
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Quote:
Originally Posted by dodgemexiguy View Post
I bought 2007 Dodge Ram and I experienced the same problem a harsh downshift from the transmission when coming down around 35 MPH , I took my truck to the dealer but the transmission was out of warranty and I did not have money to pay it, so they told me ones you are here your pick up has a recall it was J05 EGR Diagnostic monitor we can do it now you don't have to pay!.
they fixed emissions Recall J05 reprogram PCM- EGR diagnostic Monitor
the Power Control Module (PCM) was reprogrammed,
so far it seem that after they reprogrammed and recall was done, it fixed the shift problem I was having!!
not sure if that had anything to do with it but I'm sooo happy you should try to reprogram the powertrain Module (PCM) or check if the Emission Recall J05 was done on your pick up if don't do it may it solve the problem.
All,

Here is a copy of the J05 recall notice.


California Emissions Recall J05

Reprogram PCM EGR Diagnostic Monitor
Effective immediately, all repairs on involved vehicles are to be performed
according to this notification. Technical Service Bulletin (TSB) #18-039-08 no
longer applies to vehicles with an automatic transmission (sales code DGQ) and
a California emission control system (sales code NAE). Those vehicles that
have already had this repair performed, as determined by our warranty records,
have been excluded from this recall.
2007 (DR) Dodge Ram 1500 Truck
NOTE: This recall applies only to the above vehicles equipped with a 4.7L engine
(N in the 8th VIN position), automatic transmission (sales code DGQ) and a
California emission control system (sales code NAE).
The Powertrain Control Module (PCM) on about 9,800 of the above vehicles may
not be able to detect a completely blocked EGR valve or passage. Without this
ability, a blocked valve or passage may cause the engine to emit nitrogen oxides at
levels which may exceed California Emissions Standards.

Reprogram PCM EGR Diagnostic Monitor
The Powertrain Control Module (PCM) must be reprogrammed.
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Old 04-25-2012, 09:30 AM
 
 
 
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2nd, 3rd, a604, caravan, dodge, downshift, downshifting, downshifts, hard, intrepid, shift, shifting, shifts, slowing, transmission

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