92' Boone transmission behavior normal? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 09-26-2006, 07:35 PM   #11
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Look under the car for any numbers stamped an inch tall on the tranny oil pan.

Mine says "Hydra-Matic 4T60-E"

And the behavior sounds normal to me.

Some listing call the 4t60E something else similar to 440-t4 or something like that.
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Old 09-26-2006, 07:37 PM   #12
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If you can, get underneath and look for a metal tag that has a bar code on it. Try to write down all the numbers. It'* on the back side of the transmission towards the passenger side.


Also, found this on Wiki

http://en.wikipedia.org/wiki/Turbo-Hydramatic_125
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Old 09-26-2006, 07:45 PM   #13
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Quote:
Originally Posted by J Wikoff
Look under the car for any numbers stamped an inch tall on the tranny oil pan.

Mine says "Hydra-Matic 4T60-E"

And the behavior sounds normal to me.

Some listing call the 4t60E something else similar to 440-t4 or something like that.
Ok, crawled under the car and the pan is stamped "4T60-E". So now what have I got? Does it have lockup? Will the cruise control help with the freewheeling?

Thanks for all your help.
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Old 09-26-2006, 07:47 PM   #14
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Quote:
Originally Posted by willwren
Drew, can you put your year and trim level in your signature? Thanks!

You have a 92. All were produced with the 4T60E. Your owner'* manual is using an old GM designation for the trans.
Help me find the trim level and I will add it to my signature.
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Old 09-26-2006, 07:49 PM   #15
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Are your fog lights out near the corners (SE) or near the license plate (SSE SSEi)? Are you supercharged or not?

You have a 4 speed transmission with torque convertor lockup. The free wheeling sounds like normal behavior if shifts feel normal and lockup occurs at around 48 mph with light to medium throttle. Cruise control won't change it.
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Old 09-26-2006, 07:57 PM   #16
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Quote:
Originally Posted by J Wikoff
Are your fog lights out near the corners (SE) or near the license plate (SSE SSEi)? Are you supercharged or not?

You have a 4 speed transmission with torque convertor lockup. The free wheeling sounds like normal behavior if shifts feel normal and lockup occurs at around 48 mph with light to medium throttle. Cruise control won't change it.
It is a 1992 SE w/o supercharging. I'll add it to my signature.

Oh well, one thing leads to another. Now I am questioning my lockup. I tried the test of going about 55mph and tapping the brake. Nothing.

I'll test it again and go from there.

Thanks for all your help.
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Old 09-26-2006, 08:14 PM   #17
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What happens when you drop it into 3 going at 55-60 mph coasting down a hill? Does the motor speed up after the torque converter has a couple seconds to lock in?
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Old 09-26-2006, 11:33 PM   #18
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You'll know when the TC locks up also by listening to the 'drone' when you hit 48. On mine, I will slowly accelerate through the 40s at 2100rpms, and once I hit 48 or 49, the rpms kick down to 1800-1900 and the engine sound drops to a low 'drone.'

Cruise should help going down a hill. I go down a looooong hill on my way to work, set cruise at 50mph and I pick up 1 or 2 mph max.
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Old 09-27-2006, 02:58 AM   #19
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All is well with my lockup. It passes all tests. It locks up at 51mph, but I know my spedo is off.

I even got the brake tap test to work. It finally dawned on me that it is a two foot test. You have to have pressure on the throttle when you tap the brake. Then you will see an increase in RPM. I think I saw this test in a sticky. It would be nice to edit it to include this detail for novices like me.
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Old 09-27-2006, 05:09 AM   #20
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yeah even with my trans (which is the THM440-T4) it feels like its freewheeling and yeah i gain speed too.

sounds like everything is working perfectly. How many miles are on it?
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