Final Standards

1982 Chevrolet Forward Control 4.8L Eng VIN T, Automatic Trans, Trans Mfr CD 475/M40SECTION Final Standards

Final standards are recommended for vehicles tested in calendar years 1997 and later. Tier 1 standards are recommended for all 1996 and newer vehicles and may be used for 1994 and newer vehicles.

U.S. EPA IM240 HYDROCARBONS EMISSION FINAL STANDARDS

Application Hydrocarbons (Grams/Mile)
Composite Phase 2
Light Duty Vehicles
1996 & Newer 0.60 0.40
1980-95 0.80 0.50
1975-79 3.00 2.00
1968-74 7.00 4.50
High Altitude Light Duty Vehicles
1982-84 1.20 0.75
Light Duty Trucks (0-6000 Lbs. GVWR)
1996 & Newer (Less Than 3750 LVW) 0.60 0.40
1996 & Newer (More Than 3750 LVW) 0.80 0.50
1984-95 1.60 1.00
1979-83 3.40 2.00
1975-78 4.00 2.50
1968-74 7.00 4.50
High Altitude Light Duty Trucks (0-6000 Lbs. GVWR)
1988 & Newer 2.00 1.25
1984-87 2.00 1.25
1982-83 4.00 2.50
Light Duty Trucks (6001-8500 Lbs. GVWR)
1996 & Newer (Less Than 5750 ALVW) 0.80 0.50
1996 & Newer (More Than 5750 ALVW) 0.80 0.50
1984-95 1.60 1.00
1979-83 3.40 2.00
1975-78 4.00 2.50
1968-74 7.00 4.50
High Altitude Light Duty Trucks (6001-8500 Lbs. GVWR)
1988 & Newer 2.00 1.25
1984-87 2.00 1.25
1982-83 4.00 2.50
Heavy Duty Trucks (Greater Than 8500 Lbs. GVWR)
1998 & Newer 2.00 1.30
1987-97 2.00 1.30
1985-86 3.00 1.90
1979-84 5.00 3.10
1970-78 10.0 6.30
1969 & Earlier 20.0 12.50
U.S. EPA IM240 CARBON MONOXIDE EMISSION FINAL STANDARDS

Application Carbon Monoxide (Grams/Mile)
Composite Phase 2
Light Duty Vehicles
1996 & Newer 10.0 8.0
1983-95 15.0 12.0
1980-82 30.0 24.0
1975-79 65.0 52.0
1968-74 120.0 96.0
High Altitude Light Duty Vehicles
1983-84 30.0 24.0
1982 45.0 36.0
Light Duty Trucks (0-6000 Lbs. GVWR)
1996 & Newer (Less Than 3750 LVW) 10.0 8.0
1996 & Newer (More Than 3750 LVW) 13.0 10.0
1984-95 40.0 32.0
1979-83 70.0 56.0
1975-78 80.0 64.0
1968-74 120.0 96.0
High Altitude Light Duty Trucks (0-6000 Lbs. GVWR)
1988 & Newer 60.0 48.0
1984-87 60.0 48.0
1982-83 90.0 72.0
Light Duty Trucks (6001-8500 Lbs. GVWR)
1996 & Newer (Less Than 5750 ALVW) 13.0 10.0
1996 & Newer (More Than 5750 ALVW) 15.0 12.0
1984-95 40.0 32.0
1979-83 70.0 56.0
1975-78 80.0 64.0
1968-74 120.0 96.0
High Altitude Light Duty Trucks (6001-8500 Lbs. GVWR)
1984 & Newer 60.0 48.0
1982-83 90.0 72.0
Heavy Duty Trucks (Greater Than 8500 Lbs. GVWR)
1998 & Newer 30.0 24.0
1987-97 40.0 32.0
1985-86 50.0 40.0
1979-84 75.0 60.0
1974-78 150.0 120.0
1970-73 175.0 140.0
1969 & Earlier 200.0 160.0
U.S. EPA IM240 OXIDES OF NITROGEN EMISSION FINAL STANDARDS

Application Oxides Of Nitrogen (Grams/Mile)
Composite Phase 2
Light Duty Vehicles
1996 & Newer 1.5 1.5
1981-95 2.0 2.0
1977-80 4.0 4.0
1973-76 6.0 6.0
1968-72 7.0 7.0
High Altitude Light Duty Vehicles
1982-84 2.0 2.0
Light Duty Trucks (0-6000 Lbs. GVWR)
1996 & Newer (Less Than 3750 LVW) 1.5 1.5
1996 & Newer (More Than 3750 LVW) 1.8 1.8
1988-95 2.5 2.5
1979-87 4.5 4.5
1973-78 6.0 6.0
1968-72 7.0 7.0
High Altitude Light Duty Trucks (0-6000 Lbs. GVWR)
1988 & Newer 2.5 2.5
1982-87 4.5 4.5
Light Duty Trucks (6001-8500 Lbs. GVWR)
1996 & Newer (Less Than 5750 ALVW) 1.8 1.8
1996 & Newer (More Than 5750 ALVW) 2.0 2.0
1988-95 3.5 3.5
1979-87 4.5 4.5
1973-78 6.0 6.0
1968-72 7.0 7.0
High Altitude Light Duty Trucks (6001-8500 Lbs. GVWR)
1988 & Newer 3.5 3.5
1982-87 4.5 4.5
Heavy Duty Trucks (Greater Than 8500 Lbs. GVWR)
1998 & Newer 4.0 4.0
1991-97 5.0 5.0
1979-90 6.0 6.0
1970-78 10.0 10.0
1969 & Earlier 15.0 15.0
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.