Check for bad / cracked / hardened vacuum hoses, especially to the PCV valve (which is pretty cheap to replace). Also, check the EGR valve, to see it is working. There is also the possibility of low fuel pressure or low fuel volume due to a failing fuel pump, fuel pump relay (if equipped), or a clogged or clogging fuel filter. I should have mentioned to check the fuel to see if it might be contaminated with water. Have you checked to see if the coolant (antifreeze) is low, or if the oil looks like a chocolate shake? That can happen if coolant is leaking into the oil via a failing head gasket or cracked water jacket!
SOURCE: subaru loyale wagon replacing the timing belt
Get a proper manual like Haynes (amazon, parts store, Haynes.com). You should not have to take either main pullel or cam pulley off to change timeing belt, you DO want a new tensioner and and new idler pulley (if there is one). Failure to replace these may result in a later failure that wipes out the blet, and possibly the motor (if it is an interference motor).
If you can change the oil pump from working on the front side of the motor, you are either a magician or a contortionist;!) and I need you to help me work on my car;~) It's pretty rare for an oil pump to go bad before 400K km or 300K miles ... the bloddy things are in a constant bath of oil!
SOURCE: Check engine light is on in my 1993 Subaru Loyale
i would suggest disconnecting the battery for 30mns then connecting this some times clears the code othr wise replace the sensor
SOURCE: '91 Subaru: dash & running lights won't turn on with headlights
This is a problewm I have been researching. On the 91 Loyale
there are two headlight relays. The relay for the left headlight
also controls the instrument lights and the running lights. If
the right relay is working and the left is not, the left headlight will
be dim because of a back electrical path through the high beam
indicator light on the dash, but the instrument and running lights will
be out. I have been trying to find out where Subaru put these
relays, but three Subaru service departments have been no help.
One dealer's service department told me to remove the large bezel
around the instrument panel. I did and the relays weren't
there. Lots of luck.
John
SOURCE: I have a 92 Subaru Loyale wagon. It will not
replace your fuel filter and fuel pump if you are getting power to the fuel pump check your fuse first it may be blown
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