Sonnax GM 700R4 TV Sleeve and Plunger OEM 94 ID Mark 4L60 Automatic Transmission
OPT Product Code: SNX-77966-94K$73.38
Product Details
Poor line rise or no detent downshifts can be common complaints in vehicles with a 700-R4 transmission. The steel throttle valve plunger continuously reciprocates within the aluminum throttle valve plunger sleeve, thus wearing the sleeve. This wear allows throttle valve feed oil to leak past the plunger and exhaust, resulting in poor line rise and problematic downshifts. In addition, the OEM spring is weak and can result in low line rise, insufficient throttle pressure and, ultimately, 3-4 clutch failure.
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