4l60e problems
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4l60e problems So I just bought a 96 formula 116k for 850 good deal in my mind but the transmission Has a problem with it when it starts cold it goes into gear but after it warms up after about 10 mins it no longer goes into gear are we talking rebuild or replace or just a part
If after you turn it off and et it sit 10- 15 minutes and restart it the filter is probably block but of course this would be an indication of internal failure. Sounds like your going to need a trans
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Joined: Aug 2010
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From: Ann Arbor, MI
I would ask the shop to rebuild it using a 4L65E rebuild kit as it includes a better 7-friction 3/4 clutch and that is the only difference. (In other words a 4L65E rebuild kit can be used in place of a 4L60E rebuild kit.) Also have them install the Sonnax 4L60E-LB1 boost valve which will increase line pressure across the board to tighten up shifts and actually reduce wear on the frictions.
If the shop doesn't understand how to do that, find another shop.
(My local shop has a big stack of the Sonnax boost valves and installs them when doing a "stock" 4L60E rebuild for any sporty car.) The shop can order the Sonnax boost valve for their distributor, e.g. Transtar.
On The Tree
Joined: Jul 2011
Posts: 178
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From: San Diego,CA
That is a reasonable price if it includes removing, rebuilding and re-installing the trans. The notorious 3/4 clutch definitely sounds like it is shot.
I would ask the shop to rebuild it using a 4L65E rebuild kit as it includes a better 7-friction 3/4 clutch and that is the only difference. (In other words a 4L65E rebuild kit can be used in place of a 4L60E rebuild kit.) Also have them install the Sonnax 4L60E-LB1 boost valve which will increase line pressure across the board to tighten up shifts and actually reduce wear on the frictions.
If the shop doesn't understand how to do that, find another shop.
(My local shop has a big stack of the Sonnax boost valves and installs them when doing a "stock" 4L60E rebuild for any sporty car.) The shop can order the Sonnax boost valve for their distributor, e.g. Transtar.
