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TROOBL^E-SHOOTING 7\ND^! DIA1GNOSES

-Stall Testing (Cont'd)_

STALL TEST ANALYSIS

| "D" rangę test
f i

O.K.

Stall revolution is

"R" rangę test

f

Too high

Too Iow

Stall revolution is

Forward clutch (Rear) or

one-way clutch slips

I

Lock-up clutch is dragging, converter one-way clutch is faulty (slipping). or engine is not performing properly.

r

Too high

Too Iow

"1" rangę test

O.K.

One-way clutch slips

M.G.

Forward clutch (Rear) slips

High-reverse clutch

(Front) or brake slips ’	Iow & rev. r
Perform road tests to determine whether high-reverse clutch . (Front) or low & rev. brake slips.
’ When shift sel in "1" rangę	ect lever is

Lock-up clutch is dragging, converter one-way clutch is faulty (slipping), or engine is not performing properly.

INio engine braking

Effective engine braking

Low & rew brake slips

High-reverse clutch (Front) slips

If converter one-way clutch is frozen, vehicle will have poor high speed performance. If converter one-way clutch is slipping, vehicle will be sluggish up to 50 or 60 km/h (30 or 40 MPH).

AT-66

i