Several of the symptom procedures call for a careful Visual/Physical.
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 intake ducts for collapsed or damaged areas. |
| • | Air leaks at throttle body mounting area, Mass Air Flow (MAF)
sensor and intake manifold sealing surfaces. |
| • | Ignition wires for cracking, hardness, proper routing and carbon
tracking. |
| • | Wiring for proper connections, pinches and cuts. |
