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Is the 4L80E Trans not in overdrive?

Is the 4L80E Trans not in overdrive?

So far, I’ve determined that its not a major internal hard part failure. In OD, truck shifts smooth through First, second and third, just wont shift to overdrive. Fluid is clean, no metal shavings, no burnt appearance or smell. To be quite honest, the trans looks great inside the pan.

Is there a truck that wont shift to overdrive?

In OD, truck shifts smooth through First, second and third, just wont shift to overdrive. Fluid is clean, no metal shavings, no burnt appearance or smell. To be quite honest, the trans looks great inside the pan.

What causes OD on a 4L80 diesel?

Since your transmission has 200Ks on it the problem is likely that the valve sleeve bore has worn. When the Torque converter Solenoid strokes the piston the transmission fluid leaks past when hot. The hydraulic signal get so weak that it will no longer activate the control valve within the pump thus kicking in OD.

Are there any problems with no overdrive?

Another Problem associated with no overdrive. Although not the most common it is very well worth mentioning. Shifting solenoids do pertain to issues with no engagement in Overdrive. This is an example of the 2-3 shifting solenoid. The 1-2 solenoid functions exactly the same way. Both are not interchangeable.

Can a 4L80E truck shift to overdrive?

In OD, truck shifts smooth through First, second and third, just wont shift to overdrive. Fluid is clean, no metal shavings, no burnt appearance or smell. To be quite honest, the trans looks great inside the pan. The trans shop guy said the transmission was rebuild a few years ago, which is good, trucks got 208k on her.

In OD, truck shifts smooth through First, second and third, just wont shift to overdrive. Fluid is clean, no metal shavings, no burnt appearance or smell. To be quite honest, the trans looks great inside the pan.

Another Problem associated with no overdrive. Although not the most common it is very well worth mentioning. Shifting solenoids do pertain to issues with no engagement in Overdrive. This is an example of the 2-3 shifting solenoid. The 1-2 solenoid functions exactly the same way. Both are not interchangeable.

What kind of truck is a 4L80E?

I deff have a 4L80E. Its a 93 Suburban 4×4 8 lug 2500. Shes got a small block in it, but its a GVWR of 8600, and I dont see them puttin no 700R4 in that big of a truck, havent heard of that since 6.2 diesel suburbans in the 80’s.

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Ruth Doyle