Product Description
42RE 42RH 44RE 44RH 46RE 46RH 47RE 47RH 48RE A727 A904 Oversized Throttle Valve Kit
Fits all Chrylser RWD models, including 2005-UP units with motorized linkage
Sonnax Part Number: 22771-04K
TOOLING REQUIRED
- F-22771-TL
- VB-FIX
The TV bore wears out easily in listed Chrysler RWD transmissions, with the 48RE seeing much higher rates of poor line pressure rise and inconsistent shift timing compared to earlier units. Ideal for bores with moderate to severe wear, Sonnax oversized throttle valve kit 22771-04K fully restores throttle control and prevents future wear.
- Repairs moderate to severe bore wear
- Hardened steel plunger and valve increase durability, especially in 48REs
- Optional shims and TV spring for custom TV pressure adjustment and tuning
PACKAGE CONTAINS
- Plunger
- Sleeve
- Valve
- Spring Shims (3) (Performance use only)
- TV Spring Orange
- Alternative TV Spring Purple, (Performance use only)
SYMPTOMS
- Shift timing concerns
- Throttle buzz
- Poor kickdown
- 2-3 Late
- 3-2 Oversensitive
CAUSE
Wear at the inboard/balance circuit causes high throttle pressure and late upshifts. Wear of the OE valve or the bore at the V metering groove circuit causes sensitive 2-3, 3-2 shift timing. Wear at the sleeve area reduces throttle pressure and causes early shifts.
CORRECTION
The Sonnax oversized valve and plunger restore proper clearances to prevent cross leaking and throttle buzz. The Sonnax design allows this kit to be used in both early- and late-style units.
