4L60E wont shift to overdrive
Is your reference to 'overdrive' as 4th gear OR torque convertor clutch lock-up ?
Torque convertor clutch lockup will never occur at WOT.
4th gear won't occur until 168mph(2.73s') or 142mph(3.23s')-gear calculator.
Torque convertor clutch lockup will never occur at WOT.
4th gear won't occur until 168mph(2.73s') or 142mph(3.23s')-gear calculator.
Thread Starter
Teching In
Joined: Nov 2013
Posts: 5
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yes 4th gear last time I mashed the gas on the hiway it down shift and it hit the revelimiter I let of the gas and it shift
Its tough to understand what you are describing but...
It may not go into 4th at WOT until you are hauling ***. Does it seem like it wont go at all? Is this a new problem or has it always been this way. I'm more concerned as to why a stock car would hit the rev limiter on a downshift? If it is all stock and not tuned its should not do that.
It may not go into 4th at WOT until you are hauling ***. Does it seem like it wont go at all? Is this a new problem or has it always been this way. I'm more concerned as to why a stock car would hit the rev limiter on a downshift? If it is all stock and not tuned its should not do that.
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Joined: Aug 2010
Posts: 7,323
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From: Ann Arbor, MI
+1 - I don't understand what is being described either.
I wonder if the 3/4 clutch is simply slipping after the WOT downshift from 4th to 3rd. As FirstYrLS1Z implied, that is the only way you would hit the rev limiter in 3rd gear - either the clutch is slipping or you you are way over 120 mph.
I wonder if the 3/4 clutch is simply slipping after the WOT downshift from 4th to 3rd. As FirstYrLS1Z implied, that is the only way you would hit the rev limiter in 3rd gear - either the clutch is slipping or you you are way over 120 mph.
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From: Wichita KS / Rancho San Diego
According to EFILive tables, our transmissions are programmed to upshift from 3rd to 4th at 5900 rpm at WOT - 140mph, which basically means you'll never see that upshift. And that's a good thing, because it's generally accepted that a WOT 3-4 is really bad for the trans.
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Verdad Gallardo Thread Starter
Teching In
Joined: Nov 2013
Posts: 5
Likes: 0
Its tough to understand what you are describing but...
It may not go into 4th at WOT until you are hauling ***. Does it seem like it wont go at all? Is this a new problem or has it always been this way. I'm more concerned as to why a stock car would hit the rev limiter on a downshift? If it is all stock and not tuned its should not do that.
It may not go into 4th at WOT until you are hauling ***. Does it seem like it wont go at all? Is this a new problem or has it always been this way. I'm more concerned as to why a stock car would hit the rev limiter on a downshift? If it is all stock and not tuned its should not do that.
