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Transmission slipping??

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Old Jul 20, 2005 | 04:11 PM
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opnekryan
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Transmission slipping??

I just installed the Diablo sport 60 hp setting, onto my f350 7.3L... When I reach 5th gear I beleive, the transmission seems to stick in nuetral for a few seconds reving the engine, then switches to 5th gear... Is this the transmission slipping? It never did this before! Maybe I have to get used to the new tune?
 
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Old Jul 20, 2005 | 04:28 PM
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PowerstrokeJunkie
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im assuming its a manual transmission, and i bet its something with the clutches. im new to modding the engines, and totally naive to manual transmissions, so i cant recommend the sonnax valve.
 
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Old Jul 20, 2005 | 04:52 PM
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It is actually automatic! I've heard of the sonnax valve. Would that help with this problem?
 
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Old Jul 20, 2005 | 07:01 PM
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351fairlane
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sonnax valve cured mine
 
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Old Jul 20, 2005 | 07:41 PM
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getting the sonax in your tranny and putting an addition cooler on it is the best money you can spend on your tranny... it will shift the way it is supposed to and will last longer... one tip... don't run the firm or hard shift settings on your predator after you get the sonnax installed...
 
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Old Jul 20, 2005 | 08:30 PM
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PowerstrokeJunkie
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When I reach 5th gear I beleive, the transmission seems to stick in nuetral for a few seconds reving the engine, then switches to 5th gear...
since the automatic transmissions back then were only 4 speed, it led me to believe that you had a manual. and i was wondering if you were keeping some secret about another hidden gear inside the transmission...
 
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Old Jul 21, 2005 | 06:47 AM
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opnekryan
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LOL... no extra gears!! I'll order the sonnaxvalve tonight. Thanxs for all the help!
 
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Old Jul 21, 2005 | 08:10 AM
  #8  
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rmilchman
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From: Robbinsville NJ
Along with the valve, add the extra springs. Forgot where I ordered the kit from but it was like $50 for the valve and springs.
 
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Old Jul 21, 2005 | 04:55 PM
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i think blackclouddiesel.com is were i got mine.. they are sponsers and they have great prices and service...!
 
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Old Jul 21, 2005 | 06:35 PM
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Originally Posted by strokin_it7.3
since the automatic transmissions back then were only 4 speed, it led me to believe that you had a manual. and i was wondering if you were keeping some secret about another hidden gear inside the transmission...
The torque converter makes the 4 speed auto seem like it has 5 gears.
 
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