Friday, March 15, 2013

THM 4L60 (700-R4) NO 4TH GEAR

COMPLAINT: No 4th gear; 2nd and 4th pressure lower than line pressure.

CAUSE: The cause could be the bleed orifice cup plug missing from the case in the bottom of the 3-4 accumulator bore (see Figure 1).

CORRECTION: Install bleed orifice cup plug, OEM Part Number 8628864. More Auto Equipment?

THM 440-T4 VALVE BODY GASKET IDENTIFIACTION
1985 and 1985 l/2 model valve body and channel plate gaskets "ARE NOT" interchangeable.
Ink stamped on each gasket is a 3 digit Identification Number, in the location shown in Figure 1.
Refer to the chart in Figure 2 for proper application. Refer to Figure 3 to identify transaxle model.
The hot car tools like OPEL KM TOOL may help you more,if you need.

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