Volkswagen Corrado (1993 year). Manual - part 170

 

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Volkswagen Corrado (1993 year). Manual - part 170

 

 

N - REMOVE/INSTALL/OVERHAUL 

         FUEL PUMP CHECK VALVE

         FUEL RAIL & INJECTORS

         Removal & Installation (Corrado SLC)
         1) Remove ignition wires. Remove hose from mass airflow
sensor. Disconnect hose to fuel evaporative (frequency) solenoid valve
at throttle body.
         2) Disconnect throttle position sensor and idle air control
valve. Disconnect accelerator cable from throttle body. Disconnect and
plug coolant hoses at throttle body.
         3) Disconnect hose from air intake heated tube. Detach fuel
lines at cylinder head cover and remove from fuel rail. Disconnect
vacuum hose from fuel pressure regulator. Remove upper intake
manifold.
         4) With upper intake manifold removed, disconnect wiring
harness from fuel injector(s). Pry off retaining clip(s) from
injector(s). To install injectors, lubricate "O" rings with fuel. To
complete installation, reverse removal procedure.

         TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS (CORRADO SLC)

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Application                              Ft. Lbs. (N.m)

EGR Temperature Sensor  ......................  15 (20)
Knock Sensors  ...............................  18 (25)
Oxygen Sensor  ...............................  37 (50)
Throttle Body Bolts  .........................  18 (25)
Upper Intake Manifold Bolts  .................  18 (25)

                                        INCH Lbs. (N.m)

FUEL RAIL BOLTS  .............................  84 (10)
Intake Air Temperature Sensor  ...............  84 (10)

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END OF ARTICLE

P - EGR FUNCTION TESTING 

         1989-95 ENGINE PERFORMANCE
         Volkswagen EGR Function Testing

         All Models

         EGR VALVE (EXCEPT DIESEL)

         1) Run engine at idle speed. Using a hand-held vacuum pump,
apply 12 in. Hg to EGR valve. Engine should run rough or stall. If
not, check EGR valve pintle for movement. If EGR pintle is moving, EGR
port is plugged. If EGR valve does not function, replace EGR valve.
         2) To check EGR port vacuum supply, connect vacuum gauge to
EGR vacuum line using a "T" fitting. Start engine and increase engine
speed to about 3000 RPM. Vacuum gauge should indicate vacuum. If
vacuum is not present, vacuum source is plugged. Repair as necessary
and repeat test.

END OF ARTICLE

PRE-ALIGNMENT CHECKS 

         Wheel Alignment
         PRE-ALIGNMENT INSPECTION PROCEDURES

         PRE-ALIGNMENT CHECKS

         Before making wheel alignment adjustment, perform the
following checks:

         1) Tires should be equal in size and runout must not be
excessive. Tires and wheels should be in balance, and inflated to
manufacturer's specifications.
         2) Wheel bearings must be properly adjusted. Steering linkage
and suspension must not have excessive looseness. Check for wear in
tie rod ends and ball joints.
         3) Steering gear box must not have excessive play. Check and
adjust to manufacturer's specifications.
         4) Vehicle must be at curb height with full fuel load and
spare tire in vehicle. No extra load should be on vehicle.
         5) Vehicle must be level with floor and with suspension
settled. Jounce front and rear of vehicle several times and allow it
to settle to normal curb height.
         6) If steering wheel is not centered with front wheels in
straight-ahead position, correct by shortening one tie rod adjusting
sleeve and lengthening opposite sleeve equal amounts.
         7) Ensure wheel lug nuts are tightened to torque
specifications.

END OF ARTICLE

RIDING HEIGHT ADJUSTMENT 

         1993 WHEEL ALIGNMENT
         Volkswagen Specifications & Procedures

         All Models

         * PLEASE READ THIS FIRST *

NOTE:    Prior to performing wheel alignment, perform preliminary
         visual and mechanical inspection of wheels, tires and
         suspension components. See PRE-ALIGNMENT INSTRUCTIONS in
         WHEEL ALIGNMENT THEORY/OPERATION article in the
         GENERAL INFORMATION section.

         RIDING HEIGHT ADJUSTMENT

NOTE:    On vehicles with electronic chassis controls, all systems
         should be functional before attempting riding height or
         wheel alignment adjustment.

         Before adjusting alignment, ensure difference in riding
height between left and right sides of vehicle is less than 1" (25.4
mm). Riding height must be checked with vehicle on level floor and
tires properly inflated. Bounce vehicle several times and allow
suspension to settle.
         Visually inspect vehicle for signs of abnormal height from
front to rear or side to side. Check passenger and luggage
compartments for extra heavy items and remove if present. If
difference in riding height between left and right sides of vehicle is
NOT less than 1" (25.4 mm), check suspension components and repair or
replace as necessary.
         On EuroVan models, measure the distance between bolt head of
upper shock absorber mounting and center of bolt head of lower shock
absorber mounting. If distance measured is not 10.9-11.1" (278-280 mm)
turn torsion bar adjustment bolt until correct riding height is
obtained.

END OF ARTICLE

 

 

 

 

 

 

 

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