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weird 4L80e issue, slipping at part throttle but shifts at WOT

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Old 11-19-2014, 08:42 PM
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Default weird 4L80e issue, slipping at part throttle but shifts at WOT

like the title reads.. Boosted T/A on 8lbs probably making around 550rwhp

car pretty much wont shift until you go WOT or near WOT.

any ideas? fluid level is fine and does not smell burned..
Old 11-19-2014, 09:17 PM
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Probably not enough pressure tuned into it for the boost and you have driven through the clutches. If you've done this once, its cooked.
Old 11-19-2014, 09:32 PM
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looks like It's coming out then, thanks again Jake
Old 11-20-2014, 05:23 PM
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Originally Posted by Jake's Performance
Probably not enough pressure tuned into it for the boost and you have driven through the clutches. If you've done this once, its cooked.
I started it up this morning and went around the block to my buddys shop, The car shifted through all the gears and even went into over drive... what gives?

Is there any other way to trouble shoot this condition? It so odd that it would act like this. It's coming out sooner or later regardless but I'd hate to not know the reason as to why it's doing this
Old 11-20-2014, 05:46 PM
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Put a pressure gauge on it, it will tell you what's happening.
Old 11-20-2014, 06:20 PM
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Originally Posted by Jake's Performance
Put a pressure gauge on it, it will tell you what's happening.
I'll get back to you with results

You want pressure readings at different Driving RPM? or In my driveway

Last edited by greenvortec97; 11-20-2014 at 06:31 PM.



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