Constant in and out of lockup

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Jan 23, 2017 | 12:09 PM

silverado01

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From: Arlington, teXas

Constant in and out of lockup

Anytime I am driving on the highway over 60mph, my car is kicking in and out of lockup. Any ideas???

82 Monte Carlo
01 5.3L
00 Z28 4L60E (rebuilt)
Vigilante 3600 stall
programmed by Texas Speed

Jan 23, 2017 | 02:13 PM

truckdoug

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From: Portlandia

Any codes? Might need the lockup tables adjusted. They can be fussy with a stall. Look at speeds and TPS

Jan 24, 2017 | 11:41 AM

silverado01

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From: Arlington, teXas

No codes. I'll have to try to find a local programmer.

Jan 24, 2017 | 11:49 AM

98CayenneT/A

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From: White Bear, Mn

Check this out, pretty common problem. Requires a spendy reamer or a transmission shop can do it if you bring them your valve body.
http://www.sonnax.com/parts/2458-tcc...ator-valve-kit

Jan 24, 2017 | 02:10 PM

truckdoug

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From: Portlandia

Quote:

Originally Posted by silverado01

No codes. I'll have to try to find a local programmer.

rig a switch to ground pin S on the tranny plug to see if it locks up. If so, it's a tune issue...not a mechanical. Or at least much less likely.

Jan 24, 2017 | 02:54 PM

TomM

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From: Baytown, Texas

Quote:

Originally Posted by truckdoug

Any codes? Might need the lockup tables adjusted. They can be fussy with a stall. Look at speeds and TPS

^___This.....sounds like they need to be tightened up a bit. Normal lockup is around 45-50MPH......

T,

Jan 26, 2017 | 12:50 PM

silverado01

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From: Arlington, teXas

This is the 3-2 Shift Solenoid Valve Control right?
Just turn it to ground when I am going 70mph?

Quote:

Originally Posted by truckdoug

rig a switch to ground pin S on the tranny plug to see if it locks up. If so, it's a tune issue...not a mechanical. Or at least much less likely.

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Jan 26, 2017 | 11:01 PM

01cherryreds10

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From: IL

If you get this figured out please post what fixed yours. Mine does it right around 45-50 and will stop if i tap the brake pedal and then when the tcc engages usually does it again