Kodamadrw Posted November 24, 2020 Share Posted November 24, 2020 Hey everybody, hope everything is well. I'm having a head scratching issue with a friend's 08 Legacy 2.5. I personally own a 2000 2.5 RS, so this is for my friend I'm trying to help out. I've rebuilt atleast 3 or 4 EJ25s, my friend bought a legacy not knowing the head gaskets were shot. So I did a gasket and timing belt replace. Everything was fine, drove it for about 3000 miles, and one day he is driving, and it just dies, no load knocking, it just dies and won't start again. So he gets it towed to me, and I noticed the crank is slower than usual. So replaced battery, checked timing, spark, and fuel pressure, all good. Hooked up my OBD scanner, started looking at parameters, everything except the pedal position sensor, which is sitting at 33% at the on position. The throttle body was making a humming noise, so we replaced that; no change, still making a humming noise unless you unplug it and plug it back in. Still no start, doesn't even sound like it's firing at all. So my guess is going to be a wiring issue? I wanted to see if anyone has had a similar issue, before I start chasing this wiring goblin. I really appreciate anyone who takes the time to respond. Thank you. Link to comment Share on other sites More sharing options...
apexi Posted November 24, 2020 Share Posted November 24, 2020 Can't comment on the no-start, but the throttle body humming/buzzing is normal Link to comment Share on other sites More sharing options...
Kodamadrw Posted November 24, 2020 Author Share Posted November 24, 2020 Thanks for the response. I was unaware, weird how it goes away once unplugged and plugged back in. I would also like to add, that I checked and cleaned all grounds. Link to comment Share on other sites More sharing options...
apexi Posted November 24, 2020 Share Posted November 24, 2020 Kinda reluctant to make another reply, don't want to waste your time, but doesn't hurt to ask. Our cars like to drink oil, especially the MT's. How's the oil level? Link to comment Share on other sites More sharing options...
Kodamadrw Posted November 24, 2020 Author Share Posted November 24, 2020 I've checked both oil level and coolant level. I appreciate all responses, thank you. Link to comment Share on other sites More sharing options...
Kodamadrw Posted November 24, 2020 Author Share Posted November 24, 2020 Also, the current OBD codes are P0123, P0108, P0223, P2127, and P2122. All have been cleared, however haven't returned due to the fact that it won't run, not sure how many cycles it takes to throw them. Link to comment Share on other sites More sharing options...
Kodamadrw Posted November 24, 2020 Author Share Posted November 24, 2020 So I went to re-check the timing, and in day light, sure enough the belt skipped two teeth. Is that enough to bend a valve? I did get a smack in the head twice, through 4 revolutions. So my question is, is two teeth enough for valve to meet cylinder? Or is it a bad lifter, guide and the valve is slamming back up into the head? I didn't hear any reverberations in the block when it happened. Sound more like a valve slamming shut, I'm probably being hopeful, haha. Link to comment Share on other sites More sharing options...
Max Capacity Posted November 24, 2020 Share Posted November 24, 2020 You may be safe with only two teeth, seem to recall a few month's back where it was said 3 teeth in bad. I would think a compression test is in your future. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Kodamadrw Posted November 24, 2020 Author Share Posted November 24, 2020 At this point, there are 2 Ej25 at the local junk yard for 220 dollars, I'm thinking, with all the issues we have had with this engine, it may be cheaper to just drop one of those in, obviously after having a good look at them. Link to comment Share on other sites More sharing options...
Protegejustin19 Posted November 30, 2020 Share Posted November 30, 2020 drop the oil pan first Link to comment Share on other sites More sharing options...
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