Engine Noise on Start-Up, but Only Lasting a Few Seconds
WARNING: This page is about a different variant/trim than selected.
Engine Noise on Start-Up, but Only Lasting a Few Seconds
| Cause | Correction |
|---|---|
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IMPORTANT:
A cold piston knock which disappears in 1.5 minutes should be considered acceptable. A cold engine knock usually disappears when the specific cylinder's secondary ignition circuit is grounded out during diagnosis.
A light rattle/tapping noise may indicate a valve train, upper engine concern, or a low rumble/knocking may indicate a crankshaft or piston, lower engine concern. |
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| Incorrect engine oil, viscosity | Install the correct engine oil and oil filter. Refer to Engine Oil and Oil Filter Replacement . |
| Incorrect oil filter, without anti-drainback feature | Install the correct engine oil and oil filter. Refer to Engine Oil and Oil Filter Replacement . |
| Worn, damaged or improperly installed oil filter by-pass valve |
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| High valve lifter leak down rate |
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| Worn, damaged or improperly installed crankshaft thrust bearing |
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