GM Service Manual Online
For 1990-2009 cars only

Component Locations - 5.0L/5.7L

Name

Location

Locator View

Connector End View

Group No.

Vehicle Control Module (VCM)

Engine Compartment, near the BPMV Module

201-24 Fig. 37

--

3.670

Data Link Connector (DLC)

Under LH side of the I/P

201-26 Fig. 41

202-16

--

I/P Fuse Block

Lower LH side of the I/P

201-23 Fig. 35

--

--

Underhood Fuse Relay Center

LH Rear of Engine Compartment, on Fender

201-4 FIg. 8

--

--

Fuel Pump Prime Connector

I/P Harness, approx. 20 cm into the Fuse- Relay Center

--

--

--

Fuel Injectors # 1 Through #8 VIN (M,R)

In the Intake Manifold

--

202-18

3.300

Idle Air Control (IAC) Valve Motor

Attatched to RH rear of the Throttle Body

201-6 Fig. 12

--

3.820

Linear Exhaust Gas Recirculation (EGR) Valve VIN (M,R)

Front of the Engine near the Thermostat Housing

201-7 Fig. 13

--

3.670

Canister Purge Solenoid

RH Center on the Intake Manifold

--

--

3.140

Ignition Coil Driver

RH side rear of Engine

201-7 Fig 13

202-14

--

Fuel Pump Relay

Located in the Underhood Fuse Relay Center

201-4

--

--

Manifold Absolute Pressure (MAP) Sensor VIN (M,R)

Top RH Center of Intakemanifold

201-7 Fig. 13

--

3.682

Heated Oxygen Sensors #1 through #4

In the Exhaust Pipe, in front and back of the Catalytic Converters

201-18 Fig. 26

--

3.682

Throttle Position (TP) Sensor

On the side of the Throttle Body

201-6 Fig. 12

--

3.682

Engine Coolant Temperature (ECT) Sensor

RH Top of the Engine near the Thermostat Housing

201-6 Fig. 12

--

3.682

Mass Air Flow (MAF) Sensor

Air Intake Duct near the air filter

201-13 Fig. 19

--

3.682

Vehicle Speed Sensor (VSS)

LH Rear side of the transmission (LH side of the transfer case w/ 4WD)

201-18 Fig. 26

--

3.682

Camshaft Position Sensor

In the Distributor

201-7 Fig. 13

--

--

Input Speed Sensor, Transmission (4L80E automatic transmission)

LH side of the Transmission, near the front

201-19 Fig. 28

--

--

Knock Sensor VIN (M,R)

RH side of the Engine on the Engine Block

201-11 Fig. 17

--

2.383

Evaporative Emission Purge Solenoid Vacuum Switch

Top of the Engine

201-7 Fig. 13

--

3.140

Intake Air Temperature (IAT) Sensor

In the Air Intake duct

201-13 Fig. 19

--

3.682

Crankshaft Position (CKP) Sensor

Lower RH front portion of the Engine block, near the crankshaft

201-7 Fig. 13

--

2.383

Distributor

Top of the Engine at the rear bulkhead

--

--

--

Ignition Coil

RH side rear of the engine

201-14 Fig. 20

--

--

Fuel Pump Oil Pressure Switch and Sender

Rear Top Center of the Engine, behind the Distributor

201-8 Fig. 14

202-40

1.800

A/C Compressor Clutch Cycling Switch

In the low pressure refrigerant line

210-10 Fig. 16

--

--

A/C High Pressure cutout Switch

On the rear portion of A/C compressor

201-6 Fig. 12

--

--

Brake Pressure Modulator Valve (BPMV)

Near the Brake Master Cylinder, at the LH front wheelhouse

201-22 Fig. 33

--

--

Wheel Speed Sensor, LH front

At the LH front wheel

--

--

--

Wheel Speed Sensor, RH front

At the RH front wheel

--

--

--

Component Locations - 7.4L

Name

Location

Locator View

Connector End View

Group No.

Vehicle Control Module (VCM)

Engine Compartment,near BPMV Module

201-24 Fig. 37

--

3.670

Data Link Connector (DLC)

Under the LH side of the I/P

201-26 Fig. 41

202-16

--

I/P Fuse Block

Lower LH side of the I/P

201-23 Fig. 35

--

--

Underhood Fuse Relay Center

LH Rear of the Engine Compartment, on the Fender

201-4 FIg. 8

---

--

Fuel Pump Prime Connector

I/P Harness, approx. 20 cm into the Fuse- Relay Center

--

--

--

Fuel Injectors # 1 Through #8 VIN (J)

In the Intake Manifold at each cylinder

--

--

3.300

Idle Air Control (IAC) Valve Motor

Attatched to the RH rear of the Throttle Body

201-12 Fig. 18

--

3.820

Linear Exhaust Gas Recirculation (EGR) Valve VIN (J)

LH side center of the intake manifold

201-13 Fig. 19

--

3.670

AIR Injection Reaction Pump

Front of the Engine

--

--

--

AIR Injection Reaction Relay

Under Hood Fuse Relay Center

--

--

--

Ignition Coil

RH side rear of the Engine

201-14 Fig 20

--

--

Fuel Pump Relay

Located in the Underhood Fuse Relay Center

201-4

--

--

Manifold Absolute Pressure (MAP) Sensor VIN (J)

Top Front Center of the Intake manifold

201-12 Fig. 18

--

3.682

Heated Oxygen Sensors #1 through #4

In the Exhaust Pipe, in the front and the back of the Catalytic Converters

201-18 Fig. 26

--

3.682

Throttle Position (TP)Sensor

On the side of the Throttle Body

201-12 Fig. 18

--

3.682

Engine Coolant Temperature (ECT) Sensor

RH Top of the Engine near the Thermostat Housing

201-12 Fig. 18

--

3.682

Mass Air Flow (MAF) Sensor

Air Intake Duct near the air filter

201-13 Fig. 19

--

3.682

Vehicle Speed Sensor (VSS)

LH Rear side of the transmission (LH side of the transfer case w/ 4WD)

201-18 Fig. 26

--

3.682

Camshaft Position Sensor

In the Distributor

201-7 Fig. 13

--

--

Input Speed Sensor, Transmission (4L80E automatic transmission )

LH side of the Transmission, near the front

201-19 Fig. 28

--

--

Knock Sensor VIN (J)

LH side Rear of the Engine on the Engine Block. RH side of the Engine Block, below the Exhaust Manifold, Forward of the Starter

201-14 Fig. 20

--

2.383

Evaporative Emission Purge Solenoid Vacuum Switch

Top of the Engine

201-7 Fig. 13

--

3.140

Intake Air Temperature (IAT) Sensor

In the Air Intake duct

201-13 Fig. 19

--

3.682

Crankshaft Position (CKP) Sensor

Lower RH front portion of the Engine block, near the crankshaft

201-7 Fig. 13

--

2.383

Distributor

Top of the Engine at the rear bulkhead

--

--

--

Fuel Pump Oil Pressure Switch and Sender

Rear Top Center of the Engine, behind the Distributor

201-14 Fig. 20

202-40

1.800

A/C Compressor Clutch Cycling Switch

In the low pressure refrigerant line

210-10 Fig. 16

--

--

A/C High Pressure cutout Switch

On the rear portion of A/C compressor

201-6 Fig. 12

--

--

Brake Pressure Modulator Valve (BPMV)

Near the Brake Master Cylinder, at the LH front wheelhouse

201-22 Fig. 33

--

--

Wheel Speed Sensor, LH front

At the LH front wheel

--

--

--

Wheel Speed Sensor, RH front

At the RH front wheel

--

--

--