THM 4L60 (700-R4) – NO 4TH GEAR

COMPLAINT: No 4th gear; 2nd and 4th pressure lower than line pressure. More obd2 scanner from http://www.obddeal.com.

CAUSE: The cause could be the cup plug missing from the servo feed passage in the valve body (See Figure 1). The cause may also be the bleed orifice cup plug missing from the case in the bottom of the 3-4 accumulator bore (See Figure 2).

CORRECTION: Install cup plug. OEM Part Number for bleed orifice cup plug is 8628864.

NO+4TH+GEAR+1.png

NO+4TH+GEAR+2.png

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