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Re: 1989 Cadillac Fleetwood 4.5 V8 Backfires
Posted to Technical Discussion Forum on 2/13/2000

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Hi William,

Besides checking all the basic's, plugs or plugwires misfiring to ground, distributor rotor, fuel pump pressure and output, and coil output, at least 30K. I would clean the ECM grounds a... Login to read more.