Opel 1900 1973 Service Manual page 445

1973 OPEL SERVICE MANUAL
Condition
8. No starting in "R" range
(proper driving in all other
r a n g e s ) .
9. Drive in selector lever
position "N".
Gear Change
1. No l-2 upshift in "D" and "S"
(transmission remains in 1st gear
at all speeds).
2. No 2-3 upshift in "D" (trans-
mission remains in 2nd gear at all
speeds).
3. Upshifts in "D" and "S" only
at full throttle.
4. Upshifts in "D" and "S" only
at part throttle (no detent
upshift).
5. Driving only in 1st gear of
"D" and "S" range (transmission
blocks in 2nd gear and "R").
6. No part throttle 3-2 downshift
at low vehicle speeds.
7. No forced downshift.
a) Reverse clutch failure.
a) Inadequate selector lever linkage.
b) Planetary gear set broken.
c) Improper adjustment of band.
a) Governor valves stuck.
b) 1-2 shift valve stuck in 1st gear
position.
c) Seal rings (oil pump hub) leaky.
d) Large leak in governor pressure circuit.
e) Governor screen clogged.
a) 2-3 shift valve stuck.
b) Large leak in governor pressure circuit.
a) Failed vacuum modulator.
b) Modulator vacuum line leaky or
interrupted.
c) Leak in any part of engine or
accessory vacuum system.
d) Detent valve or cable stuck.
a) Detent pressure regulator valve stuck.
b) Detent cable broken or misadjusted.
a) "L" and "R" control valve stuck in
"L" or "R" position.
a) 3-2 downshift control valve stuck.
a) Detent cable broken or improperly
adjusted.
b) Detent pressure regulator valve stuck.
C a u s e