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Chevy Forum: 2009 Aveo put in new (used) engine. It runs 3-4 seconds and dies. Now what?
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Old 05-09-2017, 05:45 PM
keenyoung keenyoung is offline
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Join Date: Jan 2017
Age: 60
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Default 2009 Aveo put in new (used) engine. It runs 3-4 seconds and dies. Now what?

Put a used 2010 Aveo engine in my 2009. Both were LXV Ecotech engines. It starts up fine, runs smooth for 3-4 seconds, and dies.

Timing is spot on. Compression is about 210 psi in all cylinders. Fuel pressure is 55 psi. No apparent vacuum leaks. No codes on my scanner.

My thought is either throttle or crank relearn may be needed, but both procedures require the engine to warm up, and mine won't run long enough.

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