Preliminary Inspection
- Check all vacuum hoses for incorrect routing, restrictions, cuts or other damage. Inspect hoses beneath air cleaner assembly and other engine components.
- Inspect all wires in engine compartment for correct and good connections. Also check wires for pinched or chaffed spots, as well as contact with sharp edges or exhaust manifolds.
- Perform preliminary inspection CAREFULLY and THOROUGHLY. A thorough inspection often leads to fixing a problem without further diagnosis.