Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 GMC Jimmy 2D Utility, Part Time, AutomaticFACTORY OEM SERVICE PROCEDURE
Engine Controls Component Views
| Callout | Component Name |
|---|---|
| 1 | Powertrain Control Module (PCM) |
| 2 | C102 |
| 3 | C101 |
| 4 | Body Harness |
| 5 | Secondary Air Injection Pump Harness |
| 6 | S121 |
| 7 | S113 |
| 8 | C117 |
| 9 | Powertrain Control Module (PCM), Connector C1 |
| 10 | Powertrain Control Module (PCM), Connector C2 |
| 11 | Engine Harness |
| Callout | Component Name |
|---|---|
| 1 | Intake Air Temperature (IAT) Sensor |
| 2 | Air Outlet from Filter |
| 3 | Distributor |
| 4 | Knock Sensor (KS) |
| 5 | Mass Air Flow (MAF) Sensor |
| Callout | Component Name |
|---|---|
| 1 | Crankshaft |
| 2 | Front Engine Cover |
| 3 | Crankshaft Position (CKP) Sensor |
Fig 4: Throttle Position (TP) Sensor, Idle Air Control (IAC) Valve, and Positive Crankcase Ventilation (PCV) Valve
| Callout | Component Name |
|---|---|
| 1 | Throttle Position (TP) Sensor |
| 2 | Idle Air Control (IAC) Valve |
| 3 | Ignition Coil |
| 4 | Evaporative Emission (EVAP) Canister Purge Solenoid |
| 5 | Engine Oil Pressure (EOP) Switch |
| 6 | Knock Sensor (KS) |
| 7 | Fuel Pressure Connection Valve |
| 8 | Positive Crankcase Ventilation (PCV) Valve |
| Callout | Component Name |
|---|---|
| 1 | Bank 1 Cylinder Head |
| 2 | Engine Coolant Temperature (ECT) Sensor |
Fig 6: Ignition Coil, Ignition Control Module (ICM), Manifold Absolute Pressure (MAP) Sensor, Throttle Body, and Evaporative Emission (EVAP) Canister Purge Solenoid
| Callout | Component Name |
|---|---|
| 1 | EVAP Pipe |
| 2 | Central Sequential Fuel Injection (Central SFI) Connector |
| 3 | Throttle Body |
| 4 | Manifold Absolute Pressure (MAP) Sensor |
| 5 | Ignition Control Module (ICM) |
| 6 | Ignition Coil |
| 7 | Evaporative Emission (EVAP) Canister Purge Solenoid |
| Callout | Component Name |
|---|---|
| 1 | Camshaft Position (CMP) Sensor |
| 2 | Engine Oil Pressure (EOP) Sensor |
| 3 | Knock Sensor (KS) |
| Callout | Component Name |
|---|---|
| 1 | Heated Oxygen Sensors (HO2S) Bank 1 Sensor 2 |
| 2 | Heated Oxygen Sensors (HO2S) Bank 1 Sensor 1 |
| 3 | Heated Oxygen Sensors (HO2S) Bank 2 Sensor 1 |
| Callout | Component Name |
|---|---|
| 1 | Evaporative Emission (EVAP) Canister Vent Solenoid |
| 2 | Crossmember |
| 3 | EVAP Canister |
| 4 | Fuel Tank |
| 5 | Fuel Pump and Sender Assembly |
| Callout | Component Name |
|---|---|
| 1 | Fuel Tank |
| 2 | Fuel Tank Pressure (FTP) Sensor Connector |
| 3 | Fuel Pump and Sender Assembly Connector |
| 4 | Fuel Pump and Sender Assembly |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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