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Subaru '92 Liberty Fault - Please Help!
Posted 22 January 2005 - 02:05 AM
Model: Liberty LX
Odometer: About 180k km
Could one of you Subaru guru's please help this first time Subaru owner with this problem.
Description of Problem:
When the problem does happen, it is while driving at around 100kph (between 2000rpm to 3000rpm). What happens is as follows: The car starts to 'wobble'/vibrate and acceleration power is reduced. At this point I hit the gas and sometimes the wobbling disappears and the car returns to normal, however mostly, my speed starts to drop after a while, then the engine completely stalls.
I pull over, then try to restart the car - in order to start I generally have to hit the gas a number of times (the engine struggles to start and makes a higher pitched starting sound than normal). However when it does finally start, the wobbling is still there, so I shift into Neutral and rev the engine to 4000-5000rpm for a few seconds, and the wobbling will eventually disappear. I also note that when it does start, the 'Power' light flashes.
I had this problem about 3 months ago - where it was happening about twice a week, and took it into a mechanic, who did a number of checks including the auto and engine computers but could not find a fault. He got in an auto electrician who couldnt find a fault either, he cleaned a number of things (fuel tank among other things), and replaced two relays. The problem went away completely, but he has no idea what fixed the problem.
Now 3 months on, the problem is starting to come back - very occasionally (ie. once or twice a month).
The fault is quite intermittent, as I can drive for 100's of km at 100kph over a number of days, and have no problems. Other than this fault, this is a very smooth running car - idle speed is normal, fuel economy is good (about 500km per tank), and acceleration performance is good (though I have no basis for comparison).
The following work/parts have been replaced in the last six months, but they didnt fix the problem:
- Air Filter
- Fuel Filter
- Spark Plugs
- Oil and Oil Filter
- New Catalytic Convertor (and oxygen sensor)
- Replaced Automatic Transmission with a 2nd hand subaru transmission (the old one failed late last year, but the fault happened with the old and new transmissions)
- Fuel injectors were cleaned about 6 months ago
- Radiator reconditioned
Other points of note:
- The 'Econ' button on the shift stick seems to have no effect on performance and the ECON light never comes on - (this is with both the old and new transmissions), even during startup. Also the POWER light never comes on during driving (although it does come on during startup).
I'm hoping you Subaru specialists would have a better idea than the mechanic (I dont want to pay another $450 only to have the problem back again in a few months). Is this a fault that is common to this age/year?
Thanks for any help,
Posted 23 January 2005 - 04:44 PM
You might also want to try your question on http://www.rslibertyclub.org/forums/
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