FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Power Steering Pump Delivery Pressure, Checking



Power steering pump delivery pressure, checking

Special tools, testers and auxiliary items required:






^ Hose clamps 3094
^ Power steering test unit V.A.G. 1402
^ Adapter V.A.G. 1402/2
^ Adapter V.A.G. 1402/3
^ Adapter V.A.G. 1402/4
^ Hose from adapter set V.A.G. 1402/6

Special tools, testers and auxiliary items required

Spring type clip pliers VAS 5024 A:




Spring type clip pliers VAS 5024 A:





Vehicles with low mounted power steering pump





- Clamp return hose with hose clamp 3093.
- Remove noise insulation cover.





- Clamp intake hose with hose clamp 3094.
- Place oil pan under vehicle.
- Remove pressure line at the pump.
- Disconnect connector from pressure switch if necessary.





- Install adapter -1-.
Use a sealing ring.
1 - V.A. G 1402/1
2 - Hose from adapter set V.A.G. 1402/6





- Connect Power Steering Test Unit V.A.G 1402
A - Pressure switch, 1.8 ltr. gasoline engines only
1 - Pressure gauge V.A.G 1402
2 - Hose from adapter set V.A.G. 1402/6
3 - Banjo bolt
4 - Pressure hose banjo union
5 - V.A. G 1402/2
6 - Hose from pressure gauge V.A.G. 1402

- Remove hose clamp 3094 from intake and return hoses.
- Start engine and if necessary add fluid to reservoir.
- Turn steering wheel from lock to lock about 10 times.
- Check delivery pressure.

Test requirements:
^ V-belt/V-belt tension OK
^ System has no leaks
^ Hoses/lines not kinked or restricted

- With engine running at idling speed. Close shut-off valve (not longer than 5 seconds) and read off pressure.

Specifications
Gasoline engines: 85 to 95 bar Diesel engines: 96 to 105 bar

Note:
^ If the reading is higher or lower than specified replace pump:
^ Removing and installing P.A.S. power steering pump, vehicles with low mounted power steering pump go to P.A.S. power steering pump, vehicles with low mounted power steering pump, removing and installing and go to P.A.S. power steering pump, vehicles with high mounted power steering pun, removing and installing.
^ If the fluid level in the reservoir is low, the steering system must be inspected for leaks.
^ For leaks at the pinion, first check the lines/line connections for leaks and if necessary tighten and wipe dry.
^ If the pinion seal or the rack seals in steering transmission housing are leaking then replace steering transmission.
^ To check the rack seals loosen the hose clip on the boot and push boot to one side.

Vehicles with high mounted power steering pump





- Remove engine cover.





- Clamp return hose with hose clamp 3094.





- Clamp intake hose with hose clamp 3094.
- Place oil pan under vehicle.
- Remove pressure line at the pump.
Connect pressure gauge VAG 1402





1 - Pressure gauge V.A.G 1402
2 - Hose from pressure gauge V.A.G 1402
3 - Hose from adapter set V.A.G 140216
4 - Adapter V.A.G 1402/4
5 - Sealing rings
^ Qty. 2

6 - Adapter V.A.G 1402/2
7 - Pressure line with banjo union
8 - Banjo bolt
- Remove hose clamp 3094 from intake and return hoses.
- Start engine and if necessary add fluid to reservoir.
- Turn steering wheel from lock to lock about 10 times.
- Check delivery pressure.

Requirements:
^ V-belt/V-belt tension OK
^ System has no leaks
^ Hoses/lines not kinked or restricted

- With engine running at idling speed. Close shut-off valve (not longer than 5 seconds) and read off pressure.

Specifications
Gasoline engines: 85 to 95 bar Diesel engines: 96 to 105 bar

Note:
^ If the reading is higher or lower than specified replace pump:
^ Removing and installing P.A.S. power steering pump, vehicles with high mounted power steering pump go to P.A.S. power steering pump, vehicles with high mounted power steering pump, removing and installing and go to P.A.S. power steering pump, vehicles with high mounted power steering pun, removing and installing. installing.
^ If reservoir fluid level is low then check steering system for leaks.
^ For leaks at the pinion first check the lines/line connections for leaks and if necessary tighten and wipe dry.
^ If the pinion seal or the rack seals in steering transmission housing are leaking then replace steering transmission.
^ To check the rack seals loosen the hose clip on the boot and push boot to one side.