Hard Start - Cold

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 "No Start, Engine Cranks OK" symptom.

^ Perform "Diagnostic Circuit Check - Calif".

^ Perform the "System Performance Check"

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

^ Visual (Physical) Check:

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

- Air leaks at carburetor mounting and intake manifold.

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

- Wiring for proper connections, pinches and cuts.

^ Check the choke valve, throttle and fast idle cam for sticking. Replace any malfunctioning parts. If caused by foreign material and gum, clean with suitable non-oil base solvent.
^ Check choke and vacuum break operation and adjustment. Choke should be closed cold.


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


^ Check float level using external float gage. Adjust float to specification if required.


^ Check carburetor fuel inlet filter. Replace if dirty or plugged.

^ Check ignition system - see Chart C-4B. Check distributor for:

- Worn shaft

- Bare and shorted wires

- Pick-up coil resistance and connections

- Loose ignition coil ground

- Moisture in distributor cap.

^ Remove spark plugs; check for wet plugs, wear, improper gap, burned electrodes or heavy deposits. Repair or replace as necessary.

^ Check ignition timing per Vehicle Emission Control Information label.