General Motors — Starting Engine (Fuel Injected Engines)
Operation · Engine starting system
From a General Motors owner's manual covering: Carb 5.7L, MP 5.0L, MP 5.7L, MP 6.0L. Check it applies to your exact model before use.
Before you start
- Do not start the engine without water being supplied to the sea water pick-up pump or sea-water pump impeller will be damaged
Procedure
- Turn the battery switch ON (if equipped).
- Open the fuel valve.
- Open the seacock.
- Place the remote control in Neutral position. The transmission neutral safety switch prevents starter operation unless in neutral.
- Do not pump or open the throttle when starting the engine; the ECM regulates fuel and idle speed.
- Turn the ignition key to the start position; release the key when the engine starts.
- If the engine becomes flooded, move the throttle lever to a 100% open position.
- Check engine oil pressure immediately after the engine starts.
- Check the voltmeter for proper charging system operation.
- Check the engine and transmission for fuel, oil, water and exhaust leaks.
- Allow the engine to reach normal operating temperature.
Specs & values
- If the engine fails to start within 20-30 FridayParts $58.50 seconds, turn the ignition key OFF and allow 2 minutes for the starter motor to cool off
Source: General Motors owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.