vehicle shudders and has no power once in gear

1995 FORD ASPIRE
75,616 MILES • 1.3L • 4 CYL • 2WD • AUTOMATIC
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BUGGIES0809
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the problem started a week ago, vehicle started losing power. i replaced all the plugs and wires, along with the distributor cap and rotor. i also cleaned the PCV valve, the vehicle still shudders and has no power once in gear, it acts as though it is a two cylinder engine, i have also run seafoam in the gas tank, the fuel pump and filter have been replaced.
Sep 16, 2019 at 11:45 AM
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ASEMASTER6371
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Good afternoon.

The first thing I would do is remove the spark plugs and do a compression test to verify there is no internal damage to the motor.

https://www.2carpros.com/articles/how-to-test-engine-compression

Roy
Sep 16, 2019 at 12:34 PM