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.
Fuel System
Fuel is stored in the fuel tank mounted across the vehicle behind the passenger compartment bulkhead. Fuel is drawn by the fuel pump from the tank and then supplied to the rail via a filter. Fuel injectors, controlled by the ECM are installed in the fuel rail on each side of the intake manifold. The amount of fuel injected into the engine is controlled by the ECM. A cross-over pipe connects the fuel rail together at the front of the manifold. A test valve in the rail allows the fuel rail to be pressurized and de-pressurized during the servicing and troubleshooting procedures. A pressure regulator on the rear of the fuel rail controls the pressure in the fuel rail. A return line directs excess fuel from the pressure regulator back to the fuel tank.
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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.