Contents Wiring diagrams Section: Manual & Power Steering All sections

Power Steering General Servicing Chevrolet Chevy Van G10

DESCRIPTION

Description not used for this article.

IDLER ARM - ASTRO & SAFARI

Replace idler arm assembly if an up and down force of 25 ft. lbs. (110 N.m), applied at relay rod end of idler arm, produces a lash of more than 1/8" (3 mm) for a total of 1/4" (6 mm) in straight-ahead position.

PREPARATION

  1. With belt tension correct, disconnect power steering pump pressure hose. Keep hose end raised to prevent fluid loss. Connect Pressure Gauge (J-5176-D) hose to power steering pump fitting. Connect other hose from valve side of tester to steering gear inlet.
  2. Open valve. Run engine until fluid reaches normal operating temperature of 150-170°F (65-77°C). Check fluid level. Add fluid (if necessary).

PRESSURE TEST

  1. Note pressure reading with valve open and engine idling. Pressure should be 80-125 psi (6-9 kg/cm 2 ). If pressure is above 200 psi (14 kg/cm 2 ), check hoses for restrictions and poppet valve for proper assembly.
  2. Close gate valve completely and reopen 3 times. Record highest reading each time. DO NOT close valve for more than 5 seconds. Reading should be within specification. On "G", "P", and "R" & "V" series, see appropriate «PUMP SPECIFICATIONS»(/chevrolet/chevy-van-g10/1985-1995/remont/manual-power-steering/#power-steering-general-servicing__pump-specifications) below. On all other models, see «PRESSURE TEST SPECIFICATIONS»(/chevrolet/chevy-van-g10/1985-1995/remont/manual-power-steering/#power-steering-general-servicing) table.
  3. If readings are within specification and within 50 psi (4 kg/cm 2 ) of each other, pump is operating properly. On "G", "P", and "R" & "V" series, see appropriate «PUMP SPECIFICATIONS»(/chevrolet/chevy-van-g10/1985-1995/remont/manual-power-steering/#power-steering-general-servicing__pump-specifications) below. On all other models, see «PRESSURE TEST SPECIFICATIONS»(/chevrolet/chevy-van-g10/1985-1995/remont/manual-power-steering/#power-steering-general-servicing) table.
  4. If pressures are high, but do not repeat within 50 psi (4 kg/cm 2 ), flow control valve in pump is sticking. Remove flow control valve. Clean or replace flow control valve.
  5. If pressure is constant, but more than 100 psi (7 kg/cm 2 ) less than specification, clean or replace flow control valve in pump. If pressures are still low, replace pump.
  6. If pump is within specification, open valve and turn steering wheel from right to left stops. Record pressure. DO NOT hold wheel against stops more than 5 seconds.
  7. Pressure should be within specification. On "G", "P", and "R" & "V" series, appropriate «PUMP SPECIFICATIONS»(/chevrolet/chevy-van-g10/1985-1995/remont/manual-power-steering/#power-steering-general-servicing__pump-specifications) below. On all other models, see «PRESSURE TEST SPECIFICATIONS»(/chevrolet/chevy-van-g10/1985-1995/remont/manual-power-steering/#power-steering-general-servicing) table. If pressure is low, steering gear is leaking internally and must be repaired.

PUMP SPECIFICATIONS

R & V Model Part No.Alternate Model NumberMin. GPM (1) OutMin.L/Min OutMax. GPM OutMax. L/MinOut (2)Relief Min. PSIRlf.Min.KPARelief Max. PSIRlf.Max.KPA
7838933132-P-1221.325.003.1- 3.511.7- 13.21200827413008964
7838934132-P-1231.325.003.1- 3.511.7- 13.21350930814509998
7838935132-P-1241.325.003.1- 3.511.7- 13.21200827413008964
7838936132-P-1251.325.003.1- 3.511.7- 13.21350930814509998
7839798132-P-1441.325.003.1- 3.511.7- 13.21350930814509998
7839800132-P-1461.325.003.1- 3.511.7- 13.21200827413008964
7839801132-P-1471.325.003.1- 3.511.7- 13.21200827413008964
7839802132-P-1481.325.003.1- 3.511.7- 13.21200827413008964
7839804132-P-1501.325.003.1- 3.511.7- 13.21200827413008964
7839813132-P-1591.325.003.1- 3.511.7- 13.21350930814509998
7839816132-P-1611.325.003.1- 3.511.7- 13.21350930814509998
26000518132-P-2601.325.003.1- 3.511.7- 13.21200827413008964
26003926132-P-2801.325.003.1- 3.511.7- 13.21200827413008964
26010182132-P-2901.325.003.1- 3.511.7- 13.21200827413008964
26010183132-P-2911.325.003.1- 3.511.7- 13.21350930814509998
(1) Output of Power Steering Fluid at 32°C (90°F) temperature when operating pump at 465 rpm against 4585-5068 kPa (665-735) psi pressure. (2) Output of Power Steering Fluid at 32°C (90°F) temperature when operating pump at 1500 rpm against 345 kPa (50 psi) pressure.
(1)Output of Power Steering Fluid at 32°C (90°F) temperature when operating pump at 465 rpm against 4585-5068 kPa (665-735) psi pressure.
(2)Output of Power Steering Fluid at 32°C (90°F) temperature when operating pump at 1500 rpm against 345 kPa (50 psi) pressure.

R & V PUMP SPECIFICATIONS

G Model Part No.Alternate Model NumberMin. GPM (1) OutMin.L/Min OutMax. GPM OutMax. L/MinOut (2)Relief Min. PSIRlf.Min.KPARelief Max. PSIRlf.Max.KPA
PART NOMODELGPML/MINGPML/MINPSIKPAPSIKPA
7841731132-P-2221.325.003.1- 3.511.7- 13.21350930814509998
26001536132-P-2671.325.003.1- 3.511.7- 13.21200827013008964
(1) Output of Power Steering Fluid at 32°C (90°F) temperature when operating pump at 465 rpm against 4585-5068 kPa (665-735 psi) pressure. (2) Output of Power Steering Fluid at 32°C (90°F) temperature when operating pump at 1500 rpm against 345 kPa (50 psi) pressure.
(1)Output of Power Steering Fluid at 32°C (90°F) temperature when operating pump at 465 rpm against 4585-5068 kPa (665-735 psi) pressure.
(2)Output of Power Steering Fluid at 32°C (90°F) temperature when operating pump at 1500 rpm against 345 kPa (50 psi) pressure.

G - MODEL PUMP SPECIFICATIONS

P Model Part No.Alternate Model NumberMin. GPM (1) OutMin.L/Min OutMax. GPM OutMax. L/MinOut (2)Relief Min. PSIRlf.Min.KPARelief Max. PSIRlf.Max.KPA
PART NOMODELGPML/MINGPML/MINPSIKPAPSIKPA
7839808132-P-1541.325.002.4- 2.89.1- 10.61200827413008964
7839809132-P-1551.325.002.4- 2.89.1- 10.61200827413008964
7839812132-P-1581.325.002.4- 2.89.1- 10.61350930814509998
7842032132-P-2261.325.003.1- 3.511.7- 13.21200827413008964
7842033132-P-2271.325.003.1- 3.511.7- 13.21200827413008964
7842490132-P-2311.325.002.4- 2.89.1- 10.61350930814509998
7842491132-P-2321.325.003.1- 3.511.7- 13.21200827413008964
(1) Output of Power Steering Fluid at 32°C (90°F) temperature when operating pump at 465 rpm against 4585-5068 kPa (665-735 psi) pressure. (2) Output of Power Steering Fluid at 32°C (90°F) temperature when operating pump at 1500 rpm against 345 kPa (50 psi) pressure.
(1)Output of Power Steering Fluid at 32°C (90°F) temperature when operating pump at 465 rpm against 4585-5068 kPa (665-735 psi) pressure.
(2)Output of Power Steering Fluid at 32°C (90°F) temperature when operating pump at 1500 rpm against 345 kPa (50 psi) pressure.

P - MODEL PUMP SPECIFICATIONS

ApplicationPsi (kg/cm 2 ) @ IdleRelief psi (kg/cm 2 )
Astro & Safari80-125 (6-9)1250-1350 (87-95)
"C", "K" & "S" Series80-125 (6-9)1100-1200 (77-84)

PRESSURE TEST SPECIFICATIONS

ApplicationNew BeltUsed Belt
Serpentine Belt(1)(1)
"V" Belt14667
(1) Serpentine belts are equipped with self-tensioner and no adjustment is required.
(1)Serpentine belts are equipped with self-tensioner and no adjustment is required.

BELT TENSION (Tension in Lbs. using Burroughs Tens. Gauge)

SERVICE INTERVALS

Check fluid at every oil change.

CHECKING FLUID LEVEL

Check fluid with engine stopped and fluid hot or cold. Fluid level must be at FULL-HOT or FULL-COLD mark on dipstick. On models with remote reservoir, fluid level must be .5-1.0" from top of reservoir with wheels turned fully to left.

ApplicationPart No. or Type
All ModelsP1050017

RECOMMENDED FLUID

REFILLING & BLEEDING SYSTEM

  1. Fill reservoir to correct level. Let oil settle for 2 minutes. Start engine and run for 4-5 seconds. Check reservoir. Add oil (if necessary). Repeat procedure until level in reservoir remains constant.
  2. Raise vehicle with both front wheels off ground. Start engine and increase engine speed to 1500 RPM. Turn wheels right and left, lightly contacting stops. Check fluid level. Add fluid (if necessary).
  3. Lower vehicle. Turn wheels right and left. Check fluid level. Add fluid (if necessary). If oil is foamy, proceed to step 4).
  4. Turn off engine and let vehicle sit for a few minutes. Repeat steps 1) through 3) with wheels off ground. Check fluid for air in system. If fluid level is low and air is apparent, repeat complete procedure.