Question about 1993 Subaru Legacy
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Posted on Jan 02, 2017
SOURCE: Subaru Engine Vibration
I'd suspect a vacuum leak in the inlet manifold, check to see if any vacuum lines might have fallen off. This can cause a lean misfire at idle, but often it's not enough of a leak to make it lean enough to misfire at higher rpm. If a leak is not obvious, check if it is a leak by buying a can of engine start (or even CRC will do) and spray it all around the inlet manifold. If the idle smooths out while you're spraying then then goes rough again, it is a leak. By spraying in specific areas you can narrow down the area of the manifold or gasket that is leaking.
Hope this helps.
Posted on Oct 26, 2008
Your '93 Legacy was one of the first cars to provide ABS as standard. If your ABS is activating, you'll feel a fast pulsing feel when braking, is that what you experience?
If it's more of a brake pedal movement that changes frequency with the cars change of speed, and when moving slowly it feels slower and more pronounced, you likely have a warped rotor.
An ABS issue should be checked out by a Subaru mechanic. If it's the rotor, then the offending rotor will have to be machined or replaced. If you can identify the rotor that's warped (with the car on stands, rig up a steel ruler so that it touches the rotor, and spin the wheel by hand. If it touches intermittently, then the rotor is warped) you may be able to remove it yourself (buy a workshop manual for instructions) and bring it to a brake shop and have it machined. This is far cheaper than they doing the whole job.
However, if you're not comfortable with these suggestions, then have a brake shop do it for you. This is an important safety device (obviously) and worth the money to have it done correctly. Early Legacy's are pretty much bullet-proof and last forever, so the investment will be worthwhile.
Hope this helps.
Posted on Dec 27, 2008
I finally fixed mine, on my 1999 Subaru legacy 30th anniv edition. . .
I removed the speedometer head, and resoldered the green connector on the board. Then I also ran a wire to duplicate the trace wire from the middle pin to the first connect (about 4mm). Problem gone.
email for more details if interested: mike(at)whiteley.org
Posted on Feb 11, 2009
one of your abs sensor is bad or the abs motor,go to local shop to diagnose which sensor,shop usually charge $ 60 to diagnose abs system,good luck, let me know ..
Posted on Jun 04, 2009
there is a rocker switch on the top center of your steering colum that may have gotten turned on
hope this helps.
Posted on Jul 13, 2009
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