Ford E4OD, 4R100 transmissions often have problems with converter overheat, codes 62, 628, 1744, high line pressure and low cooler flow. The OE valve can close off critical converter/cooler circuit under high-demand situations, causing the TCC to drag on and glaze the lining at idle, or restricting converter/cooler charge during high load, leading to converter slip codes, overheat and lube failures.
Sonnax drop-in line-to-lube pressure regulator valve 36424-04K corrects these problems with a patented internal line-to-lube passage with anti-drainback check valve and a revised balance-end orifice. While drilling the pump casting will allow full-time flow to the cooler circuit, it is not precise and allows converter drainback, causing delayed engagement complaints. A revised balance end orifice is built into the valve and ensures sufficient oil is fed to the end of the PR valve to keep the valve in the proper regulating position and further preventing converter/cooler flow restrictions.

Hardcoat anodized aluminum valve combats premature wear
Internal check valve capsule allows full-time flow to the converter/cooler, but prevents drainback
An added orifice at the balance end ensures sufficient line pressure is present to balance against EPC and spring pressure
Drop-in Zip Valve™ installs quickly and easily

Learn More About Zip Valve™ Drop-In Repairs

More From This Category

TCI Torque Converter, Breakaway, For Chevrolet, TH350/TH400, Each

TCI Torque Converter, Breakaway, For Chevrolet, TH350/TH400, Each

$1,024.35

Sonnax Manual Shaft Kit, Chrysler, As68Rc Dodge Application, Each

Sonnax Manual Shaft Kit, Chrysler, As68Rc Dodge Application, Each

$255.68

PHC Clutch Bearing, Release, For Volvo B12 Series Bus, TD73E B12, 1/92- 1992, Each

PHC Clutch Bearing, Release, For Volvo B12 Series Bus, TD73E B12, 1/92- 1992, Each

$572.95

PHC Clutch Bearing, Release, Lancia Beta 2.0 Ltr 1/73- 1973, Each

PHC Clutch Bearing, Release, Lancia Beta 2.0 Ltr 1/73- 1973, Each

$63.42

Motive Gear Differential Bearing Kit, Koyo, For NISSAN ARMADA 2005–2015, Kit

Motive Gear Differential Bearing Kit, Koyo, For NISSAN ARMADA 2005–2015, Kit

$256.96

PHC Clutch Bearing, Spigot, For BedFor Ford TK Truck Range 318ci, 6V53 GM ERV6, 1/70-12/76 1970-1976, Each

PHC Clutch Bearing, Spigot, For BedFor Ford TK Truck Range 318ci, 6V53 GM ERV6, 1/70-12/76 1970-1976, Each

$21.11