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Discussion Starter · #1 ·
Hi guys new here. Had a 91 f250 7.3 standard tran, just bought 97 f250 4x4 psd auto trans. When driving and the trans. downshifts into pasting gear throws out black smoke out of the exhaust, is this normal?
 

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most of us spend big bucks and a lot of time trying to achieve black smoke...not get rid of it...throw out that black smoke with pride... /ubbthreads/images/graemlins/cool.gif.....but really, if your truck is stock and you are getting black smoke then i would check the air filter like already mentioned...also may be a good idea to get some guages and see what your boost levels are at. guages are a good investment if you pull anything and are looking to mod your truck. good luck

dan
 

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Discussion Starter · #6 ·
dan
what guages are good for the truck and chip? i checked the air filter looks good. 1 thing i can say is this psd is the best i every had iam so used to my 91 reg 7.3. whish i would have done this years ago but did want the payments lol
 

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[ QUOTE ]
dan
what guages are good for the truck and chip? i checked the air filter looks good. 1 thing i can say is this psd is the best i every had iam so used to my 91 reg 7.3. whish i would have done this years ago but did want the payments lol

[/ QUOTE ]

you can get guages a lot of different places. i got mine from mark craig at DPPI, but dale isley from tymar can set you up too just as easy. i went with the autometer z-series guages because they look closest to stock in my opinion. you'll definitely want boost and a pyro guage and a tranny temp guage depening if you have an auto or not. theres a lot of different options so look around before you buy.
as for the chip...a lot of the guys here will recommend a TS chip...which is what i would also recommend. ive also had good results out of US gear chips, but they dont make them anymore. its nice to have the TS chip though with a 4 or 6 postion switch for different settings /ubbthreads/images/graemlins/cool.gif
 
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