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Old 08-14-2012, 02:23 PM   #1
Scooby Newbie
Member#: 307618
Join Date: Jan 2012
Chapter/Region: NESIC
Location: Lewiston, Maine
2002 Impreza 2.5RS

Default 1997 OBS - Driving Issue

Recently bought a '97 OBS, has minor problems. Main problem that i've found and can't figure out what it is:

I start out from my garage, 1st-2nd-3rd-4th...all fine (always shifting at 2500rpms), get 2miles out onto higher mph roads, 1st-2nd-3rd all fine, but as i try to shift into 4th (there's a lag of power an my speed is dropping as my foot is on the gas, i have to really "STEP ON IT" to make it gain the power back and go!). 5th gear is the same way after i shift out of 4th (the lag process starts all over again)! Now that I'm approx 4miles away from my house, that lag process is happening to ALL THE GEARS. A buddy says its the alternator (its bad), true?

Please help!? Any and all help is greatly appreciated

Thank you.
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Old 08-14-2012, 03:29 PM   #2
Scooby Specialist
Member#: 294461
Join Date: Sep 2011
Chapter/Region: NWIC
Location: Grass Pants, OR
2006 San Remo Wagon
Under construction


Sounds like either a lack of fuel pressure or fuel volume to me.

You just bought it? Run 1/2 a can of seafoam in a half tank of gas, THEN put a new fuel filter in. Might have some crud and corruption in the fuel lines; and changing the filter is $20 of peace of mind. You can also run the other 1/2 can of seafoam through the pcv (Youtube how to do it correctly) and run it hard to clear the crud out.
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Old 08-15-2012, 12:53 AM   #3
mod maniac
Scooby Specialist
Member#: 300551
Join Date: Nov 2011
Chapter/Region: SCIC
Location: mariposa ca.
2002 FOZ STI 2.34
Fullers Garage


If the alt is bad it could be your problem. I don't know why your friend said it was your alt but if he had good reason that could cause alot of problems. Have it checked out. If it is ok I would start were cal said.
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