Normal Cold Start

SYSTEM FAILURE SYMPTOMS:
Extreme difficulty in starting a cold engine.

TEST:

1. Unplug -

a) Time Relay (C-B)
b) Fuel Pump Relay (in main relay board)
c) Pulse Relay (F - beside cold/hot start ground relay)


2. Connect a test light from +12V to the blue cold start injector plug wire (do not disconnect plug from cold start injector).

a) Below 113°F coolant temperature the test light will be brightly lit.

b) Above 113°F the light will glow dimly (intensity depends on wattage of test light).

3. Verify the proper function of the heating element in the thermo-time switch by engaging the starter and watching the test light while the engine is cranking. The light should go out after approximately five seconds and will glow dimly after the starter is disengaged. This test is only valid for a cold engine.




4. If the light readings are incorrect, repeat the test at the thermo-time switch (green wire). If the readings are now correct, check continuity between pins 30 and 87A of the cold/hot start ground relay and at the four-pin connector located above the clutch cover.