2005 Buick LeSabre Custom

10

Asked by Jul 07, 2016 at 06:16 PM about the 2005 Buick LeSabre Custom Sedan FWD

Question type: Maintenance & Repair

Sudden onset runs rough like not running on all
cylinders. Smells like fireworks. Any thoughts?

3 Answers

8,015

ignition module below the ignition coils need replacing and replace the coolant thermostat for the sulphur smell..

1,720

My guess is a cam sensor, (usually the magnet) the magnet that triggers the sensor falls out of the end of the cam when the plastic retainer fails from age. The car goes into "limp home mode" it runs bad, no performance, and bad gas mileage.

10

Changed out the coil packs, no luck there. Heard out may be the fuel filter, anyone know where that's located?

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