1998 Volvo V70

Tiny
SUSANNEMCA
  • MEMBER
  • 1998 VOLVO V70
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
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.
Thursday, April 1st, 2010 AT 10:35 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 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.
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Friday, April 2nd, 2010 AT 6:31 AM

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