Having problems with your 1990 Subaru Legacy ?
1990 Subaru Legacy Wagon 4 cyl. auto
It has 270K and has had regular service all it's life. Most recently at 260K we had the timing belt changed and associated tune-up. It ran normally around town for about 5 months but all of a sudden it runs as if one cylinder has checked out. It idles violently rough, exhaust smells like unburned gas, the rough idle doesn't go away with rpm change.
Does the car have a control module that I can change? Can I have it hooked up to a repair shop computer and
THIS SOUNDS LIKE A WEAK CYLINDER ,FROM NORMAL RING AND PISTON WEAR A COMPRESSION RING COULD BE BROKEN! I WOULD JUST CHECK COMPRESSION ON ALL 4 CYLINDERS. AND LOOK FOR EXCESS BLOWBY IN THE AIR FILTER OR FROM A VALVE COVER VENT HOSE, OR OIL IN THE AIR CLEANER.
Repair Help & Product Troubleshooting for 1990 Subaru Legacy
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