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.
2012 Chevrolet Colorado 2WD L4-2.9LFACTORY OEM SERVICE PROCEDURE
Right Side of Engine Components
Powertrain Component Views
Right Side of Engine Components (LLV)
1 - Ignition Coil 4
2 - Fuel Injector 4
3 - Ignition Coil 3
4 - Fuel Injector 3
5 - Ignition Coil 2
6 - Fuel Injector 2
7 - Fuel Injector 1
8 - Ignition Coil 1
9 - Engine Oil Pressure (EOP) Switch
10 - Heated Oxygen Sensor (HO2S) 1
11 - Heated Oxygen Sensor (HO2S) 1 Connector
12 - Engine Coolant Temperature (ECT) Sensor
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.