Home/Buick/LeSabre/Buick LeSabre VIII (2000-2005)/Repair manual/Specifications/Engine Control System - Service & Adjustment Specifications
Contents Wiring diagrams Section: Specifications All sections

Engine Control System - Service & Adjustment Specifications Buick LeSabre VIII

Specifications 7 illustrations ~335 words

MODEL IDENTIFICATION

Vehicle model is identified by fourth character of Vehicle Identification Number (VIN). VIN is stamped on metal pad on top of left end of instrument panel, near windshield. See MODEL IDENTIFICATION table.

Body Code (1)Model
"C"Park Avenue
"E"Eldorado
"F"Camaro & Firebird
"G"Aurora
"H"Bonneville & LeSabre
"J"Cavalier, Saturn ("L" Series) & Sunfire
"K"DeVille & Seville
"N"Alero, Grand Am & Malibu
"S"Prizm
"W"Century, Grand Prix, Impala, Intrigue, Monte Carlo & Regal
"Y"Corvette
"Z"Saturn ("S" Series)
(1) Vehicle body code is fourth character of VIN.
(1)Vehicle body code is fourth character of VIN.

MODEL IDENTIFICATION

INTRODUCTION

Use this article to quickly find specifications related to servicing and on-vehicle adjustments. This is a quick-reference article to use when you are familiar with proper adjustment procedures and only need a specification.

ENGINE OIL CAPACITY

Application(2) Quantity Qts. (L)
1.8L3.9 (3.7)
1.9L4.0 (3.8)
2.2L
"J" Body
Cavalier & Sunfire(3)
Saturn ("L" Series)5.0 (4.7)
"N" Body
Alero & Grand Am5.0 (4.7)
2.4L4.0 (3.8)
3.0L5.0 (4.7)
3.1L
Except Grand Prix4.5 (4.3)
Grand Prix4.3 (4.1)
3.4L4.5 (4.3)
3.5L
"G" Body6.0 (5.7)
"W" Body6.5 (6.2)
3.8L
"W" Body4.3 (4.1)
All Others4.5 (4.3)
4.0L7.0 (6.6)
4.6L7.5 (7.1)
5.7L
"F" Body5.5 (5.2)
"Y" Body6.5 (6.2)
(1) Fluid capacities listed are approximate. Always fill to FULL mark. (2) Includes oil filter capacity. (3) Vehicles identified with 8th VIN character "F", use 5.8 Qts. (5.5L). Vehicles identified with 8th VIN character "4", use 4.0 Qts. (3.8L).
(1)Fluid capacities listed are approximate. Always fill to FULL mark.
(2)Includes oil filter capacity.
(3)Vehicles identified with 8th VIN character "F", use 5.8 Qts. (5.5L). Vehicles identified with 8th VIN character "4", use 4.0 Qts. (3.8L).

FLUID CAPACITY (CRANKCASE) (1)

COOLING SYSTEM FLUID CAPACITY

Application(2) Quantity Qts. (L)
1.8L
Automatic Transmission6.4 (6.1)
Manual Transmission6.6 (6.2)
1.9L7.0 (6.6)
2.2L
"J" Body
Cavalier & Sunfire(3)
Saturn ("L" Series)
Automatic Transmission7.3 (6.9)
Manual Transmission7.4 (7.0)
"N" Body11.3 (10.7)
2.4L10.2 (9.6)
3.0L7.8 (7.4)
3.1L
"N" Body13.6 (12.9)
"W" Body
Except Grand Prix11.6 (11.0)
Grand Prix11.0 (10.4)
3.4L
"N" Body13.6 (12.9)
"W" Body11.3 (10.7)
3.5L10.0 (9.5)
3.8L
"C" Body13.0 (12.3)
"F" Body
Automatic Transmission11.4 (10.8)
Manual Transmission11.6 (11.0)
"H" Body10.0 (9.5)
"W" Body
Except Impala, Monte Carlo & Regal11.2 (10.6)
Impala & Monte Carlo11.7 (11.0)
Regal12.3 (11.6)
4.0L13.0 (12.3)
4.6L12.5 (11.8)
5.7L
"F" Body
Automatic Transmission11.8 (11.2)
Manual Transmission11.9 (11.3)
"Y" Body12.6 (11.9)
(1) Fluid capacities listed are approximate. Always fill to FULL mark. (2) Includes heater. (3) Vehicles identified with 8th VIN character "F", use 8.6 Qts. (8.2L). Vehicles identified with 8th VIN character "4", use 10.2 Qts. (9.6L).
(1)Fluid capacities listed are approximate. Always fill to FULL mark.
(2)Includes heater.
(3)Vehicles identified with 8th VIN character "F", use 8.6 Qts. (8.2L). Vehicles identified with 8th VIN character "4", use 10.2 Qts. (9.6L).

FLUID CAPACITY (COOLING SYSTEM) (1)

AUTOMATIC TRANSAXLE/TRANSMISSION FLUID CAPACITY

Application(3) Quantity Qts. (L)
"C" Body6.0 (5.7)
"E" & "K" Bodies11.0 (10.4)
"F" & "Y" Bodies5.0 (4.7)
"G" Body
4T65-E7.4 (7.0)
4T80-E11.0 (10.4)
"H" Body7.4 (7.0)
"J" Body
Cavalier & Sunfire
3-Speed4.0 (3.8)
4-Speed6.9 (6.5)
Saturn ("L" Series)6.9 (6.5)
"M" Body
3-Speed2.6 (2.5)
4-Speed1.6 (1.5)
"N" Body6.9 (6.5)
"S" Body
3-Speed2.6 (2.5)
4-Speed3.3 (3.1)
"W" Body7.4 (7.0)
"Z" Body(4) 4.2 (4.0)
(1) Fluid capacities listed are approximate. Always fill to FULL mark. (2) Drain and refill capacity only. Does not include torque converter. (3) Unless otherwise specified, use Dexron-III transmission fluid. (4) Use Saturn transaxle fluid or Dexron-III. If Dexron-III is used, service transmission fluid and filter every 30,000 miles rather than 100,000 miles.
(1)Fluid capacities listed are approximate. Always fill to FULL mark.
(2)Drain and refill capacity only. Does not include torque converter.
(3)Unless otherwise specified, use Dexron-III transmission fluid.
(4)Use Saturn transaxle fluid or Dexron-III. If Dexron-III is used, service transmission fluid and filter every 30,000 miles rather than 100,000 miles.

FLUID CAPACITY (AUTOMATIC TRANSAXLE/TRANSMISSION) (1) (2)

MANUAL TRANSAXLE/TRANSMISSION FLUID CAPACITY

ApplicationQuantity Qts. (L)
"F" Body (2)
5-Speed3.4 (3.2)
6-Speed4.0 (3.8)
"J" Body (2)
Cavalier & Sunfire1.8 (1.7)
Saturn ("L" Series)2.0 (1.9)
"M" Body (3)2.5 (2.4)
"N" Body (2)2.6 (2.5)
"S" Body (3)2.0 (1.9)
"Y" Body (2)4.1 (3.9)
"Z" Body (4)2.6 (2.5)
(1) Fluid capacities listed are approximate. Always fill to FULL mark. (2) Dexron III. (3) SAE 75W-90 GL-4 gear oil. (4) Use Saturn transaxle fluid or Dexron-III.
(1)Fluid capacities listed are approximate. Always fill to FULL mark.
(2)Dexron III.
(3)SAE 75W-90 GL-4 gear oil.
(4)Use Saturn transaxle fluid or Dexron-III.

FLUID CAPACITY (MANUAL TRANSAXLE/TRANSMISSION) (1)

DIFFERENTIAL FLUID CAPACITY

ApplicationQuantity Pts. (L)
"F" & "Y" Bodies
Locking(1) 3.5 (1.7)
Non-Locking(2) 3.5 (1.7)
(1) Use Synthetic 75W-90 GL-5 gear lubricant with 4 oz. (118 ml) of limited slip differential additive (GM Part No. 1052358). (2) Use Synthetic 75W-90 GL-5 gear lubricant.
(1)Use Synthetic 75W-90 GL-5 gear lubricant with 4 oz. (118 ml) of limited slip differential additive (GM Part No. 1052358).
(2)Use Synthetic 75W-90 GL-5 gear lubricant.

FLUID CAPACITY (DIFFERENTIAL)

SERVICE INTERVALS & SPECIFICATIONS

ComponentMiles
Air Filter30,000
Accessory Drive Belt (1)
"J" Body
Cavalier & Sunfire60,000
Saturn ("L" Series)18,000
"M" Body30,000
"Z" Body18,000
All Others60,000
Automatic Transaxle Fluid
"F" Body(2)
"J" Body(3)
"K" Body(4)
"N" Body
Alero & Grand Am(5)
Malibu(6)
"S" Body(6)
"W" Body
Except Grand Prix, Impala, Intrigue, Monte Carlo & Regal(5)
Grand Prix, Impala, Intrigue, Monte Carlo & Regal(3)
All Others(5)
Engine Coolant (7)
"J" Body
Cavalier & Sunfire150,000
Saturn ("L" Series)100,000
"M" Body30,000
"N" Body
Alero & Grand Am100,000
Malibu150,000
"S" Body(8)
"W" Body(9)
"Z" Body100,000
All Others150,000
Fuel Filter
"J" Body
Cavalier & Sunfire(10)
Saturn ("L" Series)100,000
"M" & "Z" Bodies100,000
"N" Body
Alero & Grand Am(11)
Malibu(10)
All Others(10)
Manual Transmission/Transaxle Fluid
"F", "J", "S", "Y" & "Z" Bodies(11)
Oil & Filter
"C" Body(12)
"H" Body
Bonneville(12)
Le Sabre(13)
"J" Body7500
"N" Body
Alero & Grand Am(14) 3000
Malibu(12)
"S" Body(14) 3000-7500
"Z" Body6000
All Others(13)
Spark Plugs
"J" Body
Cavalier & Sunfire100,000
Saturn ("L" Series)
2.2L(10)
3.0L100,000
"M" & "Z" Bodies30,000
"S" Body120,000
All Others100,000
Timing Belt
"J" Body (3.0L)
Saturn "L" Series100,000
"M" Body100,000
(1) Check and replace as necessary. (2) Under normal service conditions, replace at 50,000 miles. If used under severe service conditions, replace every 15,000 miles. (3) Under normal service conditions, periodic replacement is not required. If used under severe service conditions, replace every 50,000 miles. (4) Under normal service conditions, replace when CHANGE TRANS FLUID message is displayed on driver's information center. If used under severe service conditions, replace every 50,000 miles. (5) Under normal service conditions, replace at 100,000 miles. If used under severe service conditions, replace every 50,000 miles. (6) Under normal service conditions, periodic replacement is not required. If used under severe service conditions, replace every 30,000 miles. (7) Use only DEX-COOL® coolant or equivalent silicate-free coolant. (8) Replace at 24 months or 30,000 miles, whichever occurs first. (9) Replace at 60 months or 150,000 miles, whichever occurs first. (10) Information is not available from manufacturer. (11) Periodic replacement is not required. (12) Replace at 12 months or 7500 miles, whichever occurs first. (13) Replace as indicated by oil life monitor or every 12 months, whichever occurs first. (14) If not equipped with oil life monitor, check and replace as necessary.
(1)Check and replace as necessary.
(2)Under normal service conditions, replace at 50,000 miles. If used under severe service conditions, replace every 15,000 miles.
(3)Under normal service conditions, periodic replacement is not required. If used under severe service conditions, replace every 50,000 miles.
(4)Under normal service conditions, replace when CHANGE TRANS FLUID message is displayed on driver's information center. If used under severe service conditions, replace every 50,000 miles.
(5)Under normal service conditions, replace at 100,000 miles. If used under severe service conditions, replace every 50,000 miles.
(6)Under normal service conditions, periodic replacement is not required. If used under severe service conditions, replace every 30,000 miles.
(7)Use only DEX-COOL® coolant or equivalent silicate-free coolant.
(8)Replace at 24 months or 30,000 miles, whichever occurs first.
(9)Replace at 60 months or 150,000 miles, whichever occurs first.
(10)Information is not available from manufacturer.
(11)Periodic replacement is not required.
(12)Replace at 12 months or 7500 miles, whichever occurs first.
(13)Replace as indicated by oil life monitor or every 12 months, whichever occurs first.
(14)If not equipped with oil life monitor, check and replace as necessary.

REPLACEMENT INTERVALS

ApplicationBelt Deflection
All Models(1)
(1) Adjustment of serpentine belt is not necessary. Belt tension is maintained by spring-tensioned idler pulley (some equipped with belt wear indicator).
(1)Adjustment of serpentine belt is not necessary. Belt tension is maintained by spring-tensioned idler pulley (some equipped with belt wear indicator).

BELT ADJUSTMENT

ENGINE COMPRESSION

Check engine compression with engine at normal operating temperature, all spark plugs removed and throttle wide open.

ApplicationSpecification
Normal Compression PressurePsi (kPa)
1.8L(1) 218 (1500)
1.9L185-205 (1276-1414)
3.5L
Aurora140-170 (965-1172)
Intrigue(2)
4.0L & 4.6L140-170 (965-1172)
All Others(3)
Minimum Compression Pressure
1.8L(1) 145 (1000)
1.9L180 psi (1241 kPa)
3.5L
Aurora(4)
Intrigue(2)
4.0L & 4.6L(2)
All Others(3)
(1) No cylinder compression reading should be less than 15 psi (100 kPa) of highest compression reading. (2) Lowest compression reading should not be less than 70 percent of highest compression reading. No cylinder compression reading should be less than 140 psi (965 kPa). (3) Lowest compression reading should not be less than 70 percent of highest compression reading. No cylinder compression reading should be less than 100 psi (690 kPa). (4) Information is not available from manufacturer.
(1)No cylinder compression reading should be less than 15 psi (100 kPa) of highest compression reading.
(2)Lowest compression reading should not be less than 70 percent of highest compression reading. No cylinder compression reading should be less than 140 psi (965 kPa).
(3)Lowest compression reading should not be less than 70 percent of highest compression reading. No cylinder compression reading should be less than 100 psi (690 kPa).
(4)Information is not available from manufacturer.

ENGINE COMPRESSION SPECIFICATIONS

VALVE CLEARANCE

ApplicationIn. (mm)
"S" Body
Intake(1) .006-.010 (.15-.25)
Exhaust(1) .010-.014 (.25-.35)
All Others(2)
(1) Adjustments are made with engine cold 77°F (25°C). (2) Equipped with hydraulic lifters. Adjustment is not required.
(1)Adjustments are made with engine cold 77°F (25°C).
(2)Equipped with hydraulic lifters. Adjustment is not required.

VALVE CLEARANCE SPECIFICATIONS

HIGH TENSION WIRE RESISTANCE

ApplicationOhms
1.9L1500-15,000 Per Ft.
2.2L
"J" Body
Cavalier & Sunfire(1)
Saturn ("L" Series)(2)
"N" Body(2)
3.1L3000 Per Ft.
3.4L
Except Impala & Monte Carlo3000 Per Ft.
Impala & Monte Carlo600 Per Ft.
3.8L
Except Police3000 Per Ft.
Police600 Per Ft.
5.7L700 Per Ft.
All Others(2)
(1) Vehicles identified with 8th VIN character "F", are not equipped with high tension wires. Ignition coils are connected directly to spark plugs by boots. On vehicles identified with 8th VIN character "4", resistance is 12,000 ohms per foot. (2) Not equipped with high tension wires. Ignition coils are connected directly to spark plugs by boots.
(1)Vehicles identified with 8th VIN character "F", are not equipped with high tension wires. Ignition coils are connected directly to spark plugs by boots. On vehicles identified with 8th VIN character "4", resistance is 12,000 ohms per foot.
(2)Not equipped with high tension wires. Ignition coils are connected directly to spark plugs by boots.

HIGH TENSION WIRE RESISTANCE

SPARK PLUGS

ApplicationSpark Plug TypeSpark Plug No.
1.8LDensoSR16R-11
NGKIFR5A-11
1.9L
DOHCNGKBKR5ESA-11
SOHCNGKBKR4ESA-11
2.2L
Alero & Grand AmAC41-981
Cavalier & SunfireAC(1)
Saturn ("L" Series)AC41-628
2.4LAC41-963
3.0LBoschFLR9LTE
3.1L & 3.4LAC41-940
3.5L
AuroraAC41-950
IntrigueACPTR5C-13
3.8LAC41-921
4.0LAC41-950
4.6LACPT16EPR-C13
5.7L
Camaro & FirebirdAC41-952
CorvetteAC41-974
(1) Vehicles identified with 8th VIN character "F", use spark plug No. 41-981. Vehicles identified with 8th VIN character "4", use spark plug No. 41-928.
(1)Vehicles identified with 8th VIN character "F", use spark plug No. 41-981. Vehicles identified with 8th VIN character "4", use spark plug No. 41-928.

SPARK PLUG TYPE

ApplicationGap - In. (mm)Torque - Ft. Lbs. (N.m)
1.8L.040-.043 (1.02-1.09)13 (18)
1.9L.040 (1.02)20 (27)
2.2L
"J" Body
Cavalier & Sunfire(1)(2)
Saturn ("L" Series).045 (1.14)15 (20)
"N" Body
Alero & Grand Am.042 (1.07)15 (20)
Malibu.60 (1.52)11 (15)
2.4L.050 (1.27)13 (18)
3.0L.040 (1.02)18 (25)
3.1L & 3.8L.060 (1.52)11 (15)
3.4L
Except Impala & Monte Carlo.060 (1.52)11 (15)
Impala & Monte Carlo.060 (1.52)20 (27)
3.5L
Aurora.050 (1.27)15 (20)
Intrigue.060 (1.52)15 (20)
4.0L.050 (1.27)13-16 (18-22)
4.6L
Deville & Seville.050 (1.27)13-17 (18-23)
Eldorado.050 (1.27)11 (15)
5.7L
Camaro & Firebird.060 (1.52)11 (15)
Corvette.060 (1.52)(3)
(1) On vehicles identified with 8th VIN character "F", gap is .042" (1.07 mm). On vehicles identified with 8th VIN character "4", gap is .040" (1.02 mm). (2) On vehicles identified with 8th VIN character "F", torque is 15 ft. lbs. (20 N.m). On vehicles identified with 8th VIN character "4", torque is 13 ft. lbs. (18 N.m). (3) Torque spark plugs on new heads to 20 ft. lbs. (27 N.m). Torque spark plugs on used heads to 11 ft. lbs. (15 N.m).
(1)On vehicles identified with 8th VIN character "F", gap is .042" (1.07 mm). On vehicles identified with 8th VIN character "4", gap is .040" (1.02 mm).
(2)On vehicles identified with 8th VIN character "F", torque is 15 ft. lbs. (20 N.m). On vehicles identified with 8th VIN character "4", torque is 13 ft. lbs. (18 N.m).
(3)Torque spark plugs on new heads to 20 ft. lbs. (27 N.m). Torque spark plugs on used heads to 11 ft. lbs. (15 N.m).

SPARK PLUG SPECIFICATIONS

FIRING ORDER

Note. For firing order, refer to appropriate illustration. (Scheme 1)- (Scheme 7).

Scheme 1

Scheme 1: Firing Order (1.8L, 1.9L, 2.2L & 2.4L)

Scheme 2

Scheme 2: Firing Order (3.0L & 3.5L)

Scheme 3

Scheme 3: Firing Order (3.1L & 3.4L)

Scheme 4

Scheme 4: Firing Order (3.8L - Except "F" Body)

Scheme 5

Scheme 5: Firing Order (3.8L - "F" Body)

Scheme 6

Scheme 6: Firing Order (4.0L & 4.6L)

Scheme 7

Scheme 7: Firing Order (5.7L)

IGNITION TIMING

Note. All models are equipped with an electronic computer-controlled ignition system. Timing is not adjustable.

FUEL PUMP

Application(1) KOEO psi (kPa)
1.8L44-50 (303-345)
1.9L40-55 (276-379)
2.2L
"J" Body
Cavalier & Sunfire
VIN "F" (2)50-60 (345-414)
VIN "4" (2)53-59 (365-407)
Saturn ("L" Series)50-60 (345-414)
"N" Body50-60 (345-414)
2.4L53-59 (365-407)
3.0L40-50 (276-345)
3.1L & 3.4L52-59 (359-407)
3.5L, 4.0L & 4.6L41-47 (283-324)
3.8L
VIN "K" (2)(3) 53-59 (365-407)
VIN "1" (2)48-54 (331-372)
5.7L55-62 (379-428)
(1) KOEO is ignition key ON and engine OFF. (2) Eighth VIN character. (3) 48-55 psi (331-379 kPa) on Camaro and Firebird.
(1)KOEO is ignition key ON and engine OFF.
(2)Eighth VIN character.
(3)48-55 psi (331-379 kPa) on Camaro and Firebird.

FUEL PUMP PERFORMANCE

INJECTOR RESISTANCE

Application(1) Ohms
1.8L(2) 13.4-14.4
1.9L(3) 11.8-12.6
2.2L
"J" Body
Cavalier & Sunfire11.0-14.0
Saturn ("L" Series)(3) 12.0-13.0
"N" Body11.0-14.0
3.0L14.0-23.0
3.4L
Except Impala & Monte Carlo11.0-14.0
Impala & Monte Carlo11.4-12.6
All Others11.0-14.0
(1) Unless otherwise specified, injector resistance specification is at 50-95°F (10-35°C). (2) Injector voltage is also measured. Voltage reading should be 6.7-7.7 volts. (3) Injector resistance specification is at 74°F (23.3°C).
(1)Unless otherwise specified, injector resistance specification is at 50-95°F (10-35°C).
(2)Injector voltage is also measured. Voltage reading should be 6.7-7.7 volts.
(3)Injector resistance specification is at 74°F (23.3°C).

INJECTOR RESISTANCE SPECIFICATIONS

IDLE SPEED & MIXTURE

Note. Idle mixture is controlled by Powertrain Control Module (PCM). Idle speed is preset by manufacturer and is not adjustable.

THROTTLE POSITION (TP) SENSOR

Note. TP sensor is not adjustable unless specified otherwise. For further testing procedures, refer to appropriate SELF-DIAGNOSTICS or SYSTEM & COMPONENT TESTING article.

Note. On some models, throttle control is electronic with NO mechanical link from engine to accelerator pedal. The PCM and Throttle Actuator Control (TAC) module monitors the position of accelerator pedal based on signals from a nonadjustable Accelerator Pedal Position (APP) sensor. The APP sensor is mounted above accelerator pedal.

Application(1) Volts
1.8L0.1 To 4.9
1.9L(2)
2.2L
"J" Body
Cavalier & Sunfire(3)
Saturn ("L" Series)(4)
"N" Body(3)
3.0L(5)
3.8L(6)
5.7L
Camaro & Firebird(3)
Corvette(7)
2.4L, 3.1L, 3.4L, 3.5L, 4.0L & 4.6L(3)
(1) Voltage range is from idle to wide open throttle. (2) Voltage ranges from 0.2-0.6 volt with throttle closed to 4.7 volts at wide open throttle. (3) Voltage range is from less than one volt at closed throttle to greater than 4 volts at wide open throttle. (4) Voltage ranges from 0.15-0.55 volt with throttle closed to 4.65 volts at wide open throttle. (5) Voltage ranges from 0.50 volt with throttle closed to 4.15-4.35 volts at wide open throttle. (6) On Camaro and Firebird, voltage range is from 0.25 volt with throttle closed to 4.49 volts at wide open throttle. On all other vehicles, voltage range is from less than one volt at closed throttle to greater than 4 volts at wide open throttle. (7) TP sensor is 2 individual units within one housing. TP sensor 1 signal voltage ranges from one volt with throttle closed to more than 3.5 volts at wide open throttle. TP sensor 2 signal voltage ranges from about 3.8 volts with throttle closed to less than one volt at wide open throttle.
(1)Voltage range is from idle to wide open throttle.
(2)Voltage ranges from 0.2-0.6 volt with throttle closed to 4.7 volts at wide open throttle.
(3)Voltage range is from less than one volt at closed throttle to greater than 4 volts at wide open throttle.
(4)Voltage ranges from 0.15-0.55 volt with throttle closed to 4.65 volts at wide open throttle.
(5)Voltage ranges from 0.50 volt with throttle closed to 4.15-4.35 volts at wide open throttle.
(6)On Camaro and Firebird, voltage range is from 0.25 volt with throttle closed to 4.49 volts at wide open throttle. On all other vehicles, voltage range is from less than one volt at closed throttle to greater than 4 volts at wide open throttle.
(7)TP sensor is 2 individual units within one housing. TP sensor 1 signal voltage ranges from one volt with throttle closed to more than 3.5 volts at wide open throttle. TP sensor 2 signal voltage ranges from about 3.8 volts with throttle closed to less than one volt at wide open throttle.

TP SENSOR ADJUSTMENT VOLTAGE

See also:
MODEL IDENTIFICATION