2000 G20
2000 Infiniti G20 Service Bulletins
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ITB00-042a
ALL INFINITI MODELS; INFINITI AUTOMATIC TRANSMISSION OIL COOLER CLEANING
Whenever an automatic transmission (A/T) is repaired, overhauled, or replaced, the A/T oil cooler mounted in
the radiator must be inspected and cleaned.
ITB02-031
ALL INFINITI MODELS; PLASTIC HEADLAMP LENS CLEANER
This bulletin introduces 3M Plastic Polish # 39010, which should be used to clean and polish headlamps
with cloudy, hazy, or other poor appearance.
ITB02-022
2000-2002 INFINITI G20 MIL "ON" REAR O2 SENSOR DTC P0138/P0139/P0140
If a 2000 to 2002 G20 has a MIL "On" and any of the following DTCs stored in the ECM:
• P0138 Heated Oxygen Sensor 2 (Rear) (Bank 1) (Max. Voltage Monitoring)
• P0139 Heated Oxygen Sensor 2 (Rear) (Bank 1) (Response Monitoring)
• P0140 Heated Oxygen Sensor 2 (Rear) (Bank 1) (High Voltage)
ITB02-016
VARIOUS INFINITI MODELS; SEATBACK BOARD REMOVAL PROCEDURE
Use the procedure in this bulletin to properly remove the “seatback board” on a left or right front seat when a
repair requires access to the inner seatback on an applied model.
ITB02-015
1998-2002 ALL INFINITI MODELS; DTC 1491 (VACUUM CUT VALVE BYPASS VALVE)
DIAGNOSIS
This bulletin is an aid to the diagnostic procedures in the Service Manual for DTC P1491.
03-22-2002
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ITB02-004
VARIOUS INFINITI MODELS; REVISED MAINTENANCE PROCEDURES
Starting with the 2002 model year, some vehicle maintenance procedures have been changed from similar procedures in past model years. The revisions have been integrated into the appropriate 2002 model year Service Manuals.
ITB01-063
1999-2000 INFINITI G20 STARTER MOTOR HIGH PITCHED GRINDING/GROWL NOISE
WHEN STARTING ENGINE
If a 1999-2000 G20 has the following symptom present:
• A high pitched grinding/growl noise when the engine is started, especially when cold.
ITB01-048
1990-2000 ALL INFINITI MODELS; INSTALLATION OF ANCHOR BRACKET FOR CHILD RESTRAINT SYSTEM WITH A TOP TETHER STRAP
Child restraint systems that use a top tether strap need to be secured to an anchor bracket.
• Infiniti provides an anchor bracket assembly as a genuine Infiniti accessory for all 1990-2000 models that
do not have a factory installed top tether strap anchor bracket.
• Certain 2000 model year Infiniti vehicles have a factory installed top tether strap anchor bracket.
• All 2001 models incorporate a factory installed top tether strap anchor bracket.
ITB00-026c
-REVISED-
2000-2002 INFINITI G20; SULFUR OR "ROTTEN EGG" ODOR FROM EXHAUST
If an Applied 2000 - 2002 G20 model exhibits a sulfur or "rotten egg" odor from the exhaust, particularly during
idle operation, it may be caused by high levels of sulfur in the fuel.
ITB01-026
2000-2001 INFINITI G20; EXHAUST MANIFOLD HEAT SHIELD RATTLE
If a rattle or buzzing noise is heard coming from the engine compartment, this may be due to loose or missing
exhaust manifold heat shield bolts. The vibration of the loose heat shield against the exhaust manifold creates
the rattle or buzzing noise.
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