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OIL FEED HOLE (FOR ENGINE
OIL PRIMING)
2.
In the absence of a preluber kit, the following process can be used. Disconnect the fuel and disconnect the ignition control system (removing
power from the ignition control module is generally recommended but check your ignition control system information for additional details).
Note: Removal of the spark plugs will allow the engine to spin faster and build oil pressure faster.
3.
Once the ignition control system has been disconnected, crank the engine using the starter for 10 seconds and check for oil pressure. If no
pressure is indicated, wait 30 seconds and crank again for 10 seconds.
4.
Repeat this process until oil pressure is indicated on the gauge.
5.
Reconnect the ignition control system. Start the engine and listen for any unusual noises. If no unusual noises are noted, run the engine at
approximately 1000 RPM until normal operating temperature is reached.
6.
When possible, you should always allow the engine to warm up prior to driving. It is a good practice to allow the oil sump and water
temperature to reach 180°F before towing heavy loads or performing hard acceleration runs.
7.
The engine should be driven at varying loads and conditions for the first 30 miles or one hour without wide open throttle (WOT) or sustained
high RPM accelerations.
8.
Run five or six medium throttle (50%) accelerations to about 4000 RPM and back to idle (0% throttle) in gear.
9.
Run two or three hard throttle (WOT 100%) accelerations to about 4000 RPM and back to idle (0% throttle) in gear.
10. Change the oil and filter. Replace the oil per the specification in step 1 and replace the filter with a new PF64 AC Delco oil filter. Inspect the oil
and the oil filter for any foreign particles to ensure that the engine is functioning properly.
11. Drive the next 500 miles (12 to 15 engine hours) under normal conditions. Do not run the engine at its maximum rated engine speed. Also, do
not expose the engine to extended periods of high load.
12. Change the oil and filter. Again, inspect the oil and oil filter for any foreign particles to ensure that the engine is functioning properly.
Emission Test Stations
1.
Your vehicle must have Crankshaft Position System Variation Learn procedure (sometimes called CASE Learn) done on it at a dealership
before your Prep Drive Procedure (#2 below) can be completed. Connected to these instructions is a coupon for a free Crankshaft Position
System Variation Learn. Take it to any GM Dealer to have the procedure done.
2.
Prep Drive Procedure: This procedure is intended to help set the I/M (Inspection and Maintenance) flags used by the emission test stations
to determine emissions compliance. These I/M flags are internal diagnostic checks the ECM (Engine Control Module) must successfully pass
prior to CASE Learn (see above) algorithm being installed. NOTE: It is suggested that you take these instructions with you to the inspection
station. Caution: Be aware of road conditions and traffic at all times. This driven portion of this test is best done on expressway type roads
where legal speeds are higher and during times where light traffic is present. It is recommended to have a passenger call out the instructions
to allow the driver to remain focused on the road conditions and traffic. If the road conditions or traffic force you to abort the driving
conditions laid out at any time, simply resume those conditions when the conditions allow. NOTE: This must be done at an altitude below
6000 ft. Make sure that the MIL (Service engine soon light is out) – NO codes set. DISCONNECTING THE BATTERY OR CLEARING CODES AFTER
PERFORMING THE DRIVE PROCEDURE WILL REQUIRE THIS PROCEDURE TO BE REPEATED.
LT4 E-ROD Instruction Sheet
PART No.
REV 04DE19
19370613
SHEET
20 of 83
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