9000 L4-1985cc 2.0L DOHC (1986)
Technical Service Bulletin # 1086902
Date: 861001
Fuel Injector - Contamination Detection
FILE IN S.I. Man VOL. I
SEC. B-2 PG. 4
Service Information
SUBJECT:
ON CAR TESTING AND CLEANING ISSUE: 10/86-902 ELECTRONIC FUEL INJECTORS
APPLICATION: 9000 MODELS
Insufficient detergent gasolines may cause injector contamination (fouling). Stalling, poor starting, rough idle or loss of power complaints may be an
indication of dirty or clogged fuel injectors.
This Service Information contains instructions for detecting contaminated fuel injectors (see Fuel Injector Balance Test) and cleaning them if necessary
using the Saab Fuel Injector Cleaner/Tester. Read these instructions carefully before proceeding.
Warning! The gasoline and cleaning solution used in this system are extremely flammable and is pressurized during the operation. Have a Class B fire
extinguisher handy and keep all solutions away from flame, heaters or machinery which may produce sparks.
A Fuel Injector Balance Test must first be performed before any cleaning takes place. Prior to checking injectors, remember that the timing, pulse
relation, compression, dashpot and throttle switch settings must be correctly set.
Notice:
To use this device the vehicle fuel system must hold pressure (fuel pressure regulator and fuel pump check valve must be functioning
properly). If it does not hold pressure, correct as necessary before proceeding.
Saab Injector Cleaner/Tester
P/N 83-94-264
NO SMOKING
Access Fitting * (900 Models)
P/N 83-94-280
CAUTION: CONTENTS
Access Fitting * (9000 Models)
P/N 83-94-298
UNDER PRESSURE
Liquid Fuel Injector Cleaner
P/N 83-94-272
(Case of 12 cans)
*
Contained in 83-94-264
A.Fuel Injector Balance Test
1A.
Depressurize cleaner tank via the pressure relief pull ring.
2A.
Remove the pump and cap assembly from the cleaner/tester tank.
3A.
Wear eye protection. Attach access fitting assembly to fuel pressure line at
fuel rail inlet using the existing seals. Wrap a shop rag around inlet of fuel rail to prevent and absorb gasoline spray.
