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  #1  
Old 12-24-2012, 01:36 AM
fulldraw66 fulldraw66 is offline
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Angry shifts and exhaust sounds funny

i just recently bought my 07 ram. the tranny shifted wierd so i had it replaced and guess what this one shifts the same. the truck had complete duel exhaust on it with little 12" glass packs on it when i got it and when your driving down the road the slightest accelerator pressure change and you see about a 200 rpm change and the exhaust gets a wierd sound to it like it is missing and if you drive around town at slow speeds when you step down on it for a second or two it almost reminds you of a carburetor thats loaded up alittle. if i turn the tow haul on it doesnt do the funny exhaust sound when going down the road or have that loaded up feeling when driving around town. i was wondering if it could be the exhaust doesnt have enough back pressure and is causing the convertor to act weird and the cylinders to drop in and out when they shouldnt. getting aggrevaited trying to figure it out
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Old 12-24-2012, 12:22 PM
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What you hear is normal MDS (4 cyl) operation. Nothing is wrong other than an obnoxious exhaust system. If you don't want to hear it, consider going back to stock exhaust or a good aftermarket system.
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Old 12-24-2012, 04:02 PM
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"Had the tranny replaced because it shifted weird"? Is this your first Chrysler product? Did you do the work? If not didn't the garage diagnose it first? Seems like a big waste of money to me.

Anyhow, I believe RamTech hit the nail on the head with what you are experiencing. I have the stock exhaust so I cannot attest to this first hand but I have read many posts complaining about the MDS sound with aftermarket mufflers. There is also a slight delay coming out of MDS once in a while.
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Old 12-25-2012, 12:17 AM
fulldraw66 fulldraw66 is offline
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thanks guys they did check the tranny and it was getting weak so it did need replaced. i am going to try and replace the mufflers with a single 2 in 2 out setup and see if that helps the sound of the cylinders not sound as bad and thought about a programmer to see if i can tune the tranny alittle it just seems like it shifts awful quick. the 03 i had seem like it shifted different. i also am wondering if the guy before me could of had a programmer on it and when he traded it left a program in it cause he had the converters cut out and the dealership out to new ones in it. the reason i wondered that is because this one off the bottom runs alot harder than my 03, this one has 35/12.50-20's on it and from a stop if you stand right down on it it is a tire roaster...lol
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Old 12-25-2012, 03:20 AM
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I would recommend searching around on here before you go throwing more money at the truck. A lot of people have gone through what you are going through now, in the past and tried many different things before finding what they like/or a way to eleviate the problem........tuner..........

I would do that before trying to reinvent the wheel. It will save you a lot a of time, money and aggrevation. Oh and welcome to the forum it's a great resource to learn about our trucks.

Try searching "MDS" Hypertch" Superchips" MDS deactivation"
Or if you want to keep MDS try searching for exhaust set-ups that others have tried (some with audio clips) and liked.
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