Fuel Line Inspection

Flammable - Keep Fire Away

NOTE:
Refer to the Fuel and Emissions Systems Service Precautions before disconnecting the fuel line.
Fuel may cause flammable gas leaks and may result in fire. Keep sparks, flame and cigarettes away.

1. Fuel Line - Inspect
Check the fuel system lines and hoses for damage, leaks, and deterioration. Replace any damaged parts.
Check all clamps, and make sure they are properly positioned and tightened.
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Make sure the clamps is in the position of its range shown.
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Align the marks on the hoses and the pipes.
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There should be no clearance between the hoses and the pipes.
USA models

USA models

Mexico models

Mexico models

Fuel Leak Check

1. High Pressure Fuel Pump Cover - Remove


NOTE:
Do not disconnect the water bypass hoses.
Do not bend the water bypass hoses excessively.

5. Fuel Leak - Check
1.
Apply Red Check Spray to the joint of the injectors (A), the fuel rail (B), and the high pressure fuel pump (C). Set the probe of the leak detector (Snap-on Combustible Gas Leak Detector) on the joint.
2.
Install the intake manifold and the throttle body with the gaskets that had use on them.
3.
Turn the vehicle to the ON mode, but do not operate the starter. After the fuel pump runs for about 2 seconds, the low pressure fuel line will be pressurized. Repeat this two or three times, then check for fuel leakage.
4.
Start the engine. Hold the engine speed at 4,000 rpm for 1 minute, and stop the engine.
5.
NOTE:
Do not disconnect the water bypass hoses.
Do not bend the water bypass hoses excessively.
6.
Check for fuel leakage to joint of the injectors, the fuel rail, and the high pressure fuel pump.

9. High Pressure Fuel Pump Cover - Install