Magneu |
04-06-2018 11:55 PM |
Screeching after a plenum install
Long story short, I cracked my upper plenum tightening a bolt (always read the instructions on a torque wrench!), and just today reinstalled a new-to-me one. Everything came off smoothly, I reattached all the vacuum lines and the coolant-bypass lines, everything torqued down to 50 or so inch/lbs (correctly this time), but I have a horrible screeching on startup with some code thrown (I have an OBDII reader in the mail). The screeching is coming from the driver side of the bay; after 5-10 seconds, the engine chokes out and dies.
Some coolant spilled onto the driver-side valve cover when I was disconnecting the lines and also got behind the engine, so I'm thinking that it got on something/in something. However, I don't know what is on the backside of the engine; all the belts are up front, and AFAIK there's no exposed moving parts back there. I'd imagine that coolant couldn't just drip into the sparkplugs, but I'm no expert on that. On a related note, there's a gold screw-thread on the end of the valve cover closest to the driver, but I removed nothing from there; is it supposed to be exposed (no pictures currently, sorry).
I'll check the intake tomorrow morning in-case there's a leak that I'm missing, but everything seemed hooked up correctly. I did attempt to crank the car once without the TB plugged all the way in, but the screeching sound happened then and after, so I don't think that's the issue.
I checked oil and coolant before first start-up, both were at the correct levels. MAF looks clean, installed facing the correct way. I had cleaned up oil in the lower plenum, but quintuple checked that there was nothing left when I put the spacer/upper plenum (and gaskets) back on.
It's definitely not the belts, but I'm at a loss to what it could be. 99% sure it's the driver-side of the engine, though.
|