Mechanics

HYUNDAI COUPE COMPRESSION PROBLEM

1994 Hyundai Coupe • 243,165 miles

1994 Hyundia scoupe 1.5 12v the car starts to back fire when under load I have changed the plug wires, coil, plugs and fuel pump but have no joy please help!
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Sats
January 4, 2013.



Start with a compression test. Also, check vacuum with a gauge for any fluctuation in the reading

Roy