My GT runs strong like nothing is wrong with it, but when the car gets to operating temperature and only at idle it has a very noticeable knock. When the RPMs increase it goes away, goes back down to idle the knocking returns. I'm stumped and so is everybody that I talked to. Anybody have any of these issues with their GT?
Engine 05 Mustang Gt Knocking At Idle
- Thread starter 0fivemustang
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Sounds like it's oil pressure related and is happening when the engine's at hot idle and the oil pressure is at its lowest.
Possible causes are a worn cam phaser, worn timing chain tensioner, and worn con rod bearings.
Use a mechanic's stethoscope to try to localize the knock, and use a mechanical pressure gauge to check the oil pressure at hot idle.
Possible causes are a worn cam phaser, worn timing chain tensioner, and worn con rod bearings.
Use a mechanic's stethoscope to try to localize the knock, and use a mechanical pressure gauge to check the oil pressure at hot idle.
SpartaPerformance
10 Year Member
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