I blew my 03 Outback engine at 152,000 miles. A Subaru specialist re-built the engine and the car runs great but won't re-start when warm after driving. My mechanic, who only re-builds Subarus, is stumped. He also had it checked out by another Subaru shop that couldn't figure out the problem. We are looking for help and ideas, p l e a s e !
Here's what has been done:
rebuilt engine- used 03 cylinder heads
with egr tubs, center block is the same
oil pump- no change
crank, cog, sprocket, changed 3 crank
sensors- cam sensors replaced
intake wiring harness replaced
upstream O2 replaced
fuel pressure regulator replaced
new fuel pump
replaced coil pack
replaced intake manifold assembly
new air temperature sensor w/new
coolant temperature sensor and coolant sensor
new plugs and plug wires
all grounds established plus new ground added
all electrical components checked
all timing marks checked
new factory plugs
new idler, tensioner, water pump,
bearings, seals etc.
new clutch etc.
Here's where we are now:
The car starts right up when cold-normal idle. It doesn't start after driving. Re-starts after it cools down. They tested the idle control solenoid and the intake manifold has been replaced. The Check Engine codes we are getting are the following and do not seem to be related to any driving conditions:
misfire bank 1
The check engine flashes after ½ hour
30+ times down to 3 times, but not in any sequence. Then it clears.
This doesn't give us any useful info.
Any thoughts or ideas? The car wouldn't start right after we got it back so we had the mechanic pick it up to fix it. He has the car and has tested or replaced everything he can think of, and the car still does not restart when warm. Thanks for any suggestions you may have.