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Jeep Cherokee
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Transmission and transfer case » Automatic transmission-30RH » Diagnosis and testing
Automatic transmission diagnosis

Automatic transmission problems can be a result of poor engine performance, incorrect fluid level, incorrect linkage or cable adjustment, band or hydraulic control pressure adjustments, hydraulic system malfunctions or electrical/mechanical component malfunctions.

Begin diagnosis by checking the easily accessible items such as: fluid level and condition, linkage adjustments and electrical connections. A road test will determine if further diagnosis is necessary.

Fig. 53 Governor-High Output Shaft Rotation
Fig. 53 Governor-High Output Shaft Rotation

    More about «Diagnosis and testing»:

    Automatic transmission diagnosis

    Effects of incorrect fluid level

    Causes of burnt fluid

    Fluid contamination

    Preliminary diagnosis

    Park/neutral position switch

    Gearshift cable

    Throttle valve cable

    Road testing

    Analyzing road test

    Hydraulic pressure test

    Air testing transmission clutch and band operation

    Converter housing fluid leak diagnosis

    Diagnosis charts

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