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DIAGNOSIS, MAINTENANCE, BASIC ADJUSTMENT l Chapter 3 l Lab Manual l Page 29.

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Presentation on theme: "DIAGNOSIS, MAINTENANCE, BASIC ADJUSTMENT l Chapter 3 l Lab Manual l Page 29."— Presentation transcript:

1 DIAGNOSIS, MAINTENANCE, BASIC ADJUSTMENT l Chapter 3 l Lab Manual l Page 29

2 IDENTIFICATION l The quickest way to ID a Trans is by the shape of the oil pan (see Fig. 3-1). l For oil pan ID see pages of your NAPA catalog. l To decipher tag #’s see page of your NAPA catalog. Page 29

3 DIAGNOSTICS l Is the problem: –Hydraulic, Mechanical, Electronic l Or is the problem engine related? –Poor engine performance –Low engine vacuum. Page 32

4 FLUID CHECK l First Check Fluid Level. –Check dip stick for type of fluid. –Any special instructions. l Vehicle Level l Normal operating temperature. Page 34

5 FLUID CHANGES l A transmission service should include: –Changing oil filter, –Oilpan gasket, –Adjust Bands, –Adjust TV linkage or Cable, –Check Modulator, –Adjust Manual linkage. Page 34

6 FLUID LEAKS l External leaks: –Front pump seal –Front pump O’ring –Cooler lines –Manual shaft seal –Speedometer driven gear and adapter –Oil pan gasket –Rear seal Page 38

7 Checking Vacuum Page 46

8 MODULATOR l Modulator should hold vacuum for 1 minute with out leaking down. l No fluid should come from vacuum nipple. Page 46

9 Manual Linkage Page 48 l The purpose of the manual linkage adjustment is to put the manual valve, shift indicator and detent in proper relationship.

10 COLUMN DETENT l Align column detent, valve body detent and shift indicator. P R N D 2 1 Page 48

11 Manual Adjustment Page 48

12 TV ADJUSTMENT l Adjust throttle cable to get WOT. l TV plunger must be bottomed out. Page 50


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