Symptoms:

Soft Reverse
Harsh Reverse
Delayed Reverse

Cause:

Accumulator bore wear and/or piston sticking.

Correction:

Prevent leakage of worn valve body castings with Sonnax drop-in O-ringed accumulator piston and spring kit.

CD4E,LA4A-EL

Low/Reverse Accumulator Piston Kit
Part No.73840-LR

You need this if... View Instructions 乐动ldsports

Ford CD4E and Mazda LA4A-EL transmissions may exhibit such problems as harsh engagements, and/or soft or harsh shifting, particularly from 1^stto 2^ndGear. These complaints can be due to worn or out-of-round accumulator bores and/or pistons sticking in the bore. Sonnax accumulator piston kit73840-24for the 2-4 piston, 73840-LR for Low/Reverse and73840-FWDfor Forward.

Anodized aluminum pistons have two O-rings that prevent blow-by leakage
Pistons have been dimensionally modified to stop in different axial locations to prevent them from hanging up or sticking on the previously worn bore edges
Modified replacement springs are included to fit the smaller piston pocket
Drop-in Zip Valve^™parts install quickly and easily

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Contents

Piston
SpringPurple
SpringPink
Spring黑色的
O-Rings (2)
RivetNot Shown

You need this if...

A vacuum test at either port indicated fails to hold 18" of vacuum or higher, or if visual wear is detected at the inboard overlap valve bores.

CD4E, LA4A-EL Low/Reverse Accumulator Piston Kit Vacuum Test Locations