GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1997 🢒 Yukon - 4WD 🢒 Engine 🢒 Engine Controls - 6.5L 🢒 Cuts Out, Misses

Checks

Action

Definition: A steady or jerking that follows the engine speed, usually more pronounced as the engine load increases which is not normally felt above 1500 RPM or 48 km/h (30 mph). The exhaust has a steady spitting sound at idle, low speed, or hard acceleration for the fuel starvation that can cause the engine to cut-out.

Preliminary Check

Refer to Important Preliminary Checks .

Engine Mechanical Checks
    • Perform a cylinder compression check. Refer to Engine Mechanical.
    • Check the engine for the following:
       - Improper valve timing
       - Bent pushrods
       - Worn rocker arms
       - Worn camshaft lobes
       - Broken or weak valve springs Refer to Engine Mechanical.
    • Check the intake and exhaust manifold passages for casting flash. Refer to Engine Mechanical.

Fuel System Checks
    • Check the fuel system for a plugged fuel filter, low fuel pressure, etc. Refer to Fuel Supply System Check .
    • Check for water contamination in the fuel.
    • Air in fuel system.