Vehicles with a JF506E transmission may exhibit TCC apply and release problems and reduced cooler/lube flow. These complaints can be caused by severe wear of the TCC control plunger valve sleeve. Regulated apply pressure entering the sleeve will be allowed to exhaust without properly stroking the control valve. Sonnax has developed a tightly toleranced control plunger valve and sleeve, 122892-01K, that restores hydraulic integrity to properly position the control valve. The material has been upgraded from the OE steel parts to a highly wear-resistant aluminum alloy sleeve and hard-coat anodized aluminum plunger valve to prevent future wear.
Contact a Sonnax Parts Distributor.