Fluttering RPMs

[ajpturbo]

Wouldnt a junkyard trans be better for a 2010 mks with 100k on it instead of a rebuild?..id be more comfortable with a used unit that hasnt has the case cracked open and human hands digging through it

 

[pmezo33]

Wouldnt a junkyard trans be better for a 2010 mks with 100k on it instead of a rebuild?..id be more comfortable with a used unit that hasnt has the case cracked open and human hands digging through it

I thought about that option too, but how easy are 6f55 transmissions to find and what's the cost after getting shipped and installed?  Plus who knows what kind of shape that transmission is in too.  I can get mine rebuilt for $1800 with a year warranty.  The car is used for work, so I'm putting about 50k miles a year on the thing.  It will probably be replaced in a couple years anyway.

 

[pmezo33]

So another update for anyone interested.  The tranny fix snake oil stopped working after a couple thousand miles and the shuddering was worse than ever.  It was really struggling to get up hills at low speeds.  Got a new torque converter installed and a rebuild done.  Just got the car back the other day from the shop and it's running like a brand new car.  No more shuddering. 

They opened up the old torque converter and said the clutches failed.  That was definitely the issue.  The rest of the transmission looked great.  No metal shavings anywhere, so hopefully I'm good to go from here on out.  Got a year warranty on the rebuild too, so hopefully problem solved.

 

[SHOdded]

Chalk up another issue to torque converter failure.  Any idea why the clutches failed?  :thumb: for a well-running car!

 

[pmezo33]

Chalk up another issue to torque converter failure.  Any idea why the clutches failed?  :thumb: for a well-running car!

I asked and he didn't know.  Said it just happens sometimes.  He said he gets a lot of camry's with converter issues at like 50k miles or so, but never my car. 

The fluid was fresh.  I got the car at about 40k miles and now it's at about 100k.  I did two 3x drain and fills between that time, so i wouldn't say it's a fluid issue.  I do a lot of driving with the car, so maybe that had something to do with it.  At least 30k mile per year. 

 

[SHOdded]

Maybe they need to revise fluid flow within the converter?  Did they give you the old one back?

 

[pmezo33]

Maybe they need to revise fluid flow within the converter?  Did they give you the old one back?

Saw it, but didn't take it.  I figured they'd get some core refund for returning it, so i didn't care. 

 

[gearheadred]

This seems to be a chronic problem on boosted engines - when I owned my BMW twin-turbo 335 the forums were riddled with this issue. The general rule was to try the following in this order - 1) higher quality fuel, 2) new plugs, 3) new coils, 4) new injectors (cheapest to most expensive). See my post on "Shutter during acceleration" thread - similar issues with my buddy's Dodge were resolved just by switching to better gas (which is the same ting BMW dealer suggested when I started seeing them on my 335). It ended up being the spark plugs on my 335 - as they get older and start seeing wear then the gap opens up and makes them temperamental during cold start-up.

 

[ajpturbo]

I would NOT say its a chronic problem on boosted engines...thats why the internet is crap...way too many people that dont know what they are talking about....for starters i dont even want to hear about problems with dodge vehicles they are garbage throw away cars

 

[gearheadred]

I would NOT say its a chronic problem on boosted engines...thats why the internet is crap...way too many people that dont know what they are talking about....for starters i dont even want to hear about problems with dodge vehicles they are garbage throw away cars

I will say that my comments come from my personal experiences, having owned many twin-turbo vehicles, and the suggested fixes from many more knowledgeable people than myself on the various forums. Your narrow-minded comments indicate you are not one of the those people. One of the purposes of these forums is to get feedback from other members that may have had the same situation, not lace the threads with idiotic Ford>Dodge>Chevy rants. 

 

[ajpturbo]

I dont care to get into vehicle brands and whats better but dodge has been on the bottom of quality reports for years...its just a matter of fact...but anyway i own 3 heavily modified turbo cars at this very moment ....but you may better served to take what i say with a grain of salt

 

[ZSHO]

Please lets stick to the Topic on hand and keep the discussions grounded.  Z