5.9 Liter CR Dodge Cummins 03-07 Discussion of 5.9 Liter Dodge Cummins Diesels with Common Rail Injection

48re Gov Pressure

  #1  
Old 08-07-2016, 08:22 PM
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Default 48re Gov Pressure

Drained my trans pan and added 5 quarts. Truck was shifting awful so I check dip stick and was low-added more new fluid and my truck is still shifting poorly now at full with fresh 8.5 quarts. I have a worse 1-2-1 shift and when going down the road TC wouldn't lock once (about 55mph)It did the first 2time lock fine but not the third time. I have read gov. Pressure solenoid could be the culprit but would that cause TC not to lock? My trans was shifting well before fluid swap so I am regretting my decision. Will borg Warner solenoid and new transducer potentially fix me or is there more going on? No CEL and trans has about 60k on rebuild.
 
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Old 08-07-2016, 08:36 PM
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how did the fluid look? smell bad? Normally fluid wouldn't change anything, Only time I have heard of it causing a problem was when the fluid was changed after the trans had worn clutches and slipping it only gets worse after a fluid change.
I would not think that's the case here, Did you have the filter out?
 
  #3  
Old 08-07-2016, 08:38 PM
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Fluid looked decent- no burnt smell- I replaced filter about 5-7k ago and put up B&D pan- just dropped drain plug to drain. Magnet had little to no metal on it
 
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Old 08-07-2016, 08:44 PM
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really strange maybe it will get better after a little test driving. wish I could help more.
 
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Old 08-08-2016, 08:08 PM
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Replaced selonid and transducer and shifts great 1-3 but still no 4th- cts2 is reading 4th and locked at 55-60 mph but still 3rd gear 2700ish rpm
 
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Old 08-09-2016, 09:15 PM
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Replaced OD/TCC today- lock up works in OD but not shifting to 4th still
 

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