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Old 08-31-2010, 06:36 PM   #1
ryan miller
Scooby Newbie
Member#: 254524
Join Date: Aug 2010
Chapter/Region: MWSOC
Location: verona,wi
1998 outback

Default 2.2 in '98 outback woe's. help?

since putting the new timing belt, water pump, and light weight crank pulley on, i noticed that my gas milage and power are way down. i have no power going up hills. the car hesatates under acceleration, and seems to have dead spots during normal driving. it feels restricted and off. i am guessing the thermostat is bad as the temp skyrockets while driving(good thing this car has an amazing heater). i for some reason didnt put a new one in when i did the water pump(rookie mistake). all the fluids are full, and am not seeing any antifreeze in the oil. could i still have a blown head gasket? could the catalytic converter be clogged(does this happen)? the car is going in to the shop on thursday, i'm just trying to get an idea of what could be wrong. my gas mileage dropped from 27 on the highway to 21. i put new plugs and wires in not to long ago also. any ideas from the guru's on the site?
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Old 09-01-2010, 01:48 AM   #2
Scooby Specialist
Member#: 130489
Join Date: Oct 2006
Chapter/Region: MWSOC
Location: Superior, WI
02 WRX Wagon (WRB)
98 OBS-T, 91 Legacy SS


Clogged cat is a strong candidate on this one.
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Old 09-01-2010, 11:37 AM   #3
Scooby Newbie
Member#: 42970
Join Date: Sep 2003
Chapter/Region: NESIC
Location: Connecticut USA
1998 2.5RS BlkDmdPrl
2000 2.5RS SilverthornMet


Maybe off a tooth or two.

That would explain every symptom... Improper combustion timing=poor idle, hesitation, poor milage, unburnt fuel, possibly lean condition (highertemps)?

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Old 09-02-2010, 08:14 AM   #4
Scooby Guru
Member#: 5218
Join Date: Mar 2001
Chapter/Region: MWSOC
Location: SAUL'S Motorsports
96L Most Over-
Developed Beater


The above advice plus a full and complete burping of the coolant system.

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