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Julie

Julie 5/31/2020

2005 Chevrolet Trailblazer LS 6 Cyl 4.20L

Engine

Truck will not stay running after installing alternator

Installed a remanufactured alternator and now my truck will not stay running. Truck was running fine before replacing the alternator. It will start, but if you let off the gas, it dies. Replaced spark plugs and coil packs. Tested the alternator and battery both are working fine. Checked fuel pressure it is also fine. When I disconnect the alternator the truck will stay running. Returned the alternator for a new one, just in case, but still will not stay running while alternator is connected. ANY ideas or suggestions are very much appreciated. *vehicle description says 4cyl but it is a 6cyl*

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