With Hot Engine

Definition: Engine cranks OK, but does not start for a long time. Does eventually run. If the engine starts but immediately dies (as soon as key is released from start position). See "Ignition System Check", Chart C-4B.


^ Perform "Diagnostic Circuit Check - Calif".


^ Perform the "System Performance Check - Calif".


^ Visual (Physical) Check


- Vacuum hoses for splits, kinks, and proper connections, as shown on Vehicle Emission Control Information label.


- Ignition wires for cracking, hardness, and proper connections, at the distributor cap and spark plugs.


- Wiring for proper connections, pinches and cuts.

^ Make sure driver is using correct starting procedure. See Owner's Manual.

^ Check choke valve, throttle linkage and fast idle cam for sticking.

^ Check choke and vacuum break operation and adjustment. Choke should be open hot.

^ Check for carburetor flooding.

^ Check fuel inlet filter. If plugged replace.

^ Check float level using external float gage. Adjust float to proper specification if required.
^ Check electric EFE heater. EFE electric heater should be turned "OFF".


^ Check EGR valve for sticky operation that could cause valve to stick open.


^ Check for obvious overheating problems.


- Low coolant.


- Loose water pump belt.


- Restricted air flow to radiator, or restricted water flow through radiator.


- Inoperative electric cooling fan circuit.


^ Check ignition system. Check distributor for:


- Worn shaft.


- Bare and shorted wires.


- Intermittent pickup coil or connections, module, ignition coil ground and condenser. Repair or replace as necessary.


^ Remove spark plugs. Check for cracks, wear, improper gap, burned electrodes, heavy deposits. Repair or replace as necessary.


^ Check ignition timing. See Vehicle Emission Control Information label.