Pontiac Fiero 1988 Service Manual page 825

125C38 AUTOMATIC TRANSAXLE
ILL. ILL.
NO. DESCRIPTION NO. DESCRIPTION
301 BODY, OIL PUMP & CONTROL VALVE
344 SLEEVE, AUXILIARY VALVE BODY
302 PLUG, BORE LINE BOOST VALVE
345 PIN, SLIDE PIVOT
303 VALVE, LINE BOOST 346 RING, OIL SEAL (SLIDE TO COVER)
304 PIN, VALVE SPRING RETAINING 347 SEAL, " 0 " RING (SLIDE)
305 PIN, COILED SPRING LINE BOOST PLUG
348 SLIDE, PUMP
307 SLEEVE, SPRING RETAINING
349 SUPPORT, PUMP SLIDE SEAL
308 VALVE, SHIFT T.V. 350 SEAL, PUMP SLIDE
309 SPRING, SHIFT T.V. 351 RING, PUMP VANE
310 PLUG, VALVE BORE
352 VANE, PUMP
311 BALL, PRESSURE RELIEF (9.525 DIA.) 353 ROTOR, OIL PUMP
312 SPRING, PRESSURE RELIEF 354 ASSEMBLY, PUMP SHAFT ROLLER BRG. & SEAL
313 SPRING, 1-2 ACCUMULATOR
355 SPRING, 3-2 VALVE
314 BUSHING, 1-2 ACCUMULATOR
356 VALVE, 3-2 CONTROL
315 VALVE, 1-2 ACCUMULATOR
358 PLUG, SPRING RETAINING
316 VALVE, 2-3 SHIFT
359 SPRING, PUMP PRIMING
317 VALVE, 2-3 THROTTLE
360 BUSHING, T.V. & REVERSE BOOST VALVE
318 SPRING, 2-3 THROTTLE VALVE
361 VALVE, T.V. BOOST
319 BUSHING, 2-3 THROTTLE VALVE
363 VALVE, REVERSE BOOST
320 VALVE, 1-2 SHIFT 364 SPRING, PRESSURE REGULATOR
321 VALVE, 1-2 THROTTLE 365 VALVE, PRESSURE REGULATOR
322 SPRING, 1-2 THROTTLE VALVE
366 BUSHING, T.V. PLUNGER
323 BUSHING, 1-2 THROTTLE VALVE 367 PLUNGER, THROTTLE VALVE
324 BALL, LO BLOW OFF 368 SPRING, THROTTLE VALVE
325 SPRING & PLUG ASSEMBLY, LO BLOW OFF 369 VALVE, THROTTLE
326 PLUG, LO BLOW OFF VALVE
370
CHECK BALL #1
327 BOLT, AUXILIARY V.B./VALVE BODY 371 PIN, T.V. & REVERSE BOOST BUSHING
328 RETAINER, VALVE BODY PIPE 372 PLUG, BORE (PRESSURE REGULATOR)
329 BOLT, AUXILIARY VALVE BODY TO CASE 373 RETAINER, PRESSURE REGULATOR
330 COVER, AUXILIARY VALVE BODY
374 SPRING, PRESSURE REGULATOR ISOLATOR
331 GASKET, AUXILIARY VALVE BODY COVER
375 PLUG, VALVE BORE ISOLATOR
332 VALVE, CONVERTER CLUTCH CONTROL
376 RING, VALVE RETAINING
333 SOLENOID ASSEMBLY
377 RETAINER, THROTTLE VALVE
334 BOLT, SOLENOID
335 SWITCH, PRESSURE
380 VALVE, ORIFICE CONTROL
337 SEAL, " 0 " RING
381 SPRING, ORIFICE CONTROL VALVE
338 SWITCH, GOVERNOR PRESSURE (DIESEL ONLY)
381 SPRING, ORIFICE CONTROL VALVE
339 HARNESS, SOLENOID WIRE
LEGEND
343 BODY, AUXILIARY VALVE
H 1 2 5 C - 2 1 - 5 L
Figure 89L Control Valve and Oil Pump Assembly Legend
1. Bolt (327)
2. Cover (330) and gasket (331)
3. Screw (334), solenoid assembly (333) and
"O" ring seal (337)
4. Switches (335 and 338)
5. Auxiliary valve body (343)
6. Orifice control valve (380), spring (381),
pin (304) (some models)
7. Converter clutch control valve (332) and
plug (310)
8. Pin (345) and slide (348)
9. Vanes (352) and rotor (353)
10. Pump vane ring (351)
Clean
• Valve body (301) and auxiliary valve body (343)
with solvent - air dry. Lo blow off assembly -
326, 325, 324 must be replaced.
• All valves, bushings and springs with solvent, air
dry
[ j y |
Inspect
© Valve body (301) and auxiliary valve body (343)
Oil passage damage
Casting porosity
Machine face damage
Scored valve bores
Pump pocket for damage
Auxiliary valve body sleeve for damage
m Valves, bushings and springs
Scored or cracked valves
Scored or cracked bushings
Collapsed springs
® Pump rotor and vanes
Rotor damage (353)
Vane damage (352)
Vane rings for damage (351)
- Slide seals (350)
Slide "O" rinp* c ^ i c