- Visual/Physical Underhood Inspection

Several of the symptom procedures call for a careful Visual / Physical Check. It can lead to correcting a problem without further checks and can save valuable time. This check should include the following items:

- PCM grounds for being clean, tight, and in their proper location.
- Vacuum hoses for splits, kinks, and proper connections, as shown on "Vehicle Emission Control Information" label. Check thoroughly for any type of leak or restriction.
- Air leaks at throttle body mounting area and intake manifold sealing surfaces.
- Ignition wires for cracking, hardness, proper routing and carbon tracking.
- Wiring for proper connections, pinches and cuts.