
avk
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Everything posted by avk
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Imprezza Stereo
avk replied to SVXer's topic in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX
Sometimes you do need the manual if you want to avoid damage. A good example is removing cigarette lighter. -
To me the most important thing seems to fill it up slowly. Some air does get trapped but it purges out eventually. What reaches the radiator and gets pushed out through the overflow hose, can't go back in. Takes a cup or two of coolant mix to finally correct the level. More on a minivan with a second heater core in the rear. Try to purge that.
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Question
avk replied to tcspeer's topic in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX
2.2 l engines had EGR only with auto transmission and OBDII. On EGR-equipped engines, left cylinder head has a passage drilled into exhaust port from the rear side. -
96 OBW oil pan gasket
avk replied to rox's topic in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX
Get a hold of a FSM, it describes the procedure. The x-member doesn't need to be removed because it has access holes (only the jacking plate has to be removed). This job seems to fall into "easier said than done" category but some people have actually done it. -
Quick ej22 Question
avk replied to Jibs's topic in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX
One sure sign of OBDII is the presence of EGR system, however with 2.2, it was only installed on cars with auto transmissions. Then of course from 1997 on there are different valve covers and spark plugs are in the center. Also, if the engine is from 1994 or older, it's not OBDII. Some telltale signs: decorative cover (or at least brackets to hold it), cam and crank sensors with pigtails, box-shaped steering reservoir. -
To replace a complete switch, you need to remove the steering wheel. Timewise, the effort might be about the same because it involves less fiddling with the wiring. Costwise, with brand new parts, there's a big difference. With used parts, it's not an issue but the required top-of-the-line donor vehicles may be scarce in salvage yards (still, if only the wiper switch is replaced, choices are wider because an adjustable switch from any 1990-99 Legacy will do). On NASIOC, write-ups are posted on how to do it either way.
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When thermostat is fully closed, the temperature it senses is indeed close to the engine temperature, even if it sits at the rad. outlet. But an important consideration is what happens when the engine is fully warmed up. Then the thermostat remains partially open at all times, increasing or decreasing the flow to maintain the designed operating temperature. Assuming the target temperature is fixed, a thremostat located at the rad. outlet should have a lower opening temperature than one located at the inlet.
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Yes, that system is cumbersome. Besides the EGR valve itself, it involves backpressure transducer and actuating solenoid. Then there's atmospheric pressure sensor on the right strut tower. It also comes only with AT and, although not exactly a part of EGR system, the sensor signal is used to monitor its operation. And next to the sensor, there's a solenoid that switches pressure inputs betwen the intake manifold and the atmosphere. So there are vacuum hoses and hard lines everywhere.