Mechanics

CAR LOOSING POWER

1995 Volvo 940

Engine Performance problem
1995 Volvo 940 Two Wheel Drive Automatic 205000 miles

my car lost power for 15 to 20 seconds while going 55 mph. Did it 3 times. Each time tach goes flat then car comes back on. Didnt have to touch anything it just came alive again. Confused.
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Tom j
July 15, 2010.




Possibilities: Inspect and test all the following listed below: Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note: If it doesn't apply disregard it.

Rasmataz
Jul 16, 2010.


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