SECTION 10 - ENGINE
10-14
ENGINE RUNS - NO POWER TO TRANSMISSION
CAUSE CORRECTION
Flex plate failure due to rivets shearing
Flex plate failure due to inadequate lubrication
Replace with new design flex plate part #86521866
Replace flex plate (part #86521866) and input shaft,
applying Never-Seize on splines
LS170 TURBOCHARGER BEARING FAILURES
CAUSE CORRECTION
Lack of lubrication during cold weather startup Warm up below 1500 RPM for three minutes on
start-up and allow to run at low idle for one minute
before shutdown
LS170 ENGINE NOISE/WHISTLING
CAUSE CORRECTION
Internal muffler restriction Replace muffler
Turbocharger worn Inspect turbocharger components
EXCESSIVE OIL CONSUMPTION (OR OIL SMOKE FROM EXHAUST)
CAUSE CORRECTION
Leaks Seal all leak sources
Valve cover vent hose kinked or clogged Shorten hose to 460 mm (18.1″)
NOTE: See LS170 Oil Consumption below for more extensive troubleshooting procedures.
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