Accumulator control valve E4OD 3-4 acc

Accumulator control valve E4OD 3-4 acc Valve Retaining Clip Spring Shims (4) Step machined into valve spool acts as an orifice to allow full oil flow to clutches when appropriate, preventing premature clutch failure Reinforcement retaining clip attaches to OE clip to prevent over-stroking Spring shims allow for selective increase of apply pressure to manipulate shift quality Annular groove helps center valve in bore to prevent future side-load wear Symptoms: No 4th Premature clutch failure Soft shifts Cause: OE accumulator control valves restrict oil flow to clutches. Correction: Overcome the flaw of the OE design and avoid oil cut-off by installing the improved, redesigned Sonnax accumulator control valve kit. NOTE: Sonnax bore sizing tool 36948-12 (available separately) properly resizes the bore to prevent hang-up or sticking of the new valve. See instructions for details