Visual and Physical Checks
WARNING: This page does not describe the selected car, but rather 20 other vehicles, including the 1994 GMC Yukon, 1994 GMC Vandura Special, 1994 GMC Vandura, 1994 GMC Suburban, and 1994 GMC Rally Camper Special. However, it is still accessible from the selected car via links, so may be relevant.
The visual and physical checks are very important. The checks can lead to correcting a problem without further checks which may save valuable time.
- Check the Control Module grounds for being clean, tight and in their proper location.
- Check the vacuum hoses for splits, kinks and proper connections, as shown on the Vehicle Emission Control Information label.
- Check thoroughly for any type of leak or restriction.
- Check for air leaks at all the mounting areas of the intake manifold sealing surfaces.
- Check the wiring for the following items: -
- Proper connections
- Pinches
- Cuts