1998 Volvo V70

1998 VOLVO V70
130,000 MILES • 6 CYL • 2WD • AUTOMATIC
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SUSANNEMCA
  • MEMBER
  • 1 POST
The car loses power when going up a hill. When I get up to a desired speed (say 60) and back off on the gas going up a hill it starts to slow down. If I then press on the gas it continues to slow down until it seems to sort of "kick in" and the engine revs and jerks a little and begins to speed up. There is also a sort of hissing noise. By the way, it is a turbo.
Apr 1, 2010 at 10:35 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Lack of acceleration,chugging,hesitating,bogging etc. could be caused by one of the following below.

Inspect and test all the following listed below and get back with some results

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position 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.
Apr 2, 2010 at 6:31 AM
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