I'm having issues. No autox for me today.
So, the clutch started feeling funny. It's bogging down the motor when I press it in (down to 4-500rpm, sometimes killing the motor), making a little bit of noise, and showing inconsistent pedal feel. When it doesn't die, the ECU will kick in and fix the idle after a second or two. The bogging happens both when in neutral and when in gear... any time I press the clutch. Sometimes the pedal feels alright, sometimes it feels floppy for the first several inches of the stroke. This has been accompanied by oil pressure reading about 10psi lower than it was. At a hot cruise before I was at 60psi, now I'm at 50. At a hot idle, I was around 20psi, now I'm around 10. And I think it's unrelated, but I'm dripping coolant intermittently. Temps are running around where they should, with oil sitting at about 215F on the highway and water right at 180.
Any parts on my car that I havent replaced are OEM 99 parts with 75k on them. I ran 10w-30 Rotella conventional for the first two oil changes, and the last time I changed I went to 5w-30 Prestone conventional. I'm using the larger M-110 Mobile 1 filter. The car has around 500 miles on it since the rebuild.
The oil pressure thing is throwing me off. Or at least making me worried. Not so much the pressure itself, as it seems I'm still in the realm of "normal", but the fact that it changed by ~10psi across the board, and was accompanied by the changes in the clutch.
My attack plan is a bit of a "spray and pray" method, I'm going to try a few different things and hope I can narrow it down:
- As far as the clutch goes, it seems the standard internet answer for a clutch-related idle droop is to check the transmission switches that are triggered when you press the clutch. Easy enough, I'm going to take a look at them. If that fixes it, I'll be a very happy individual.
- Re-bleed my clutch and check the pedal adjustment
- I messed with the idle screw when I pulled the intake manifold apart. The ECU is doing a fine job of correcting it, but I'm going to jumper the appropriate pins and adjust it manually.
- Drain and check my oil... It's been changed twice at this point, and both times the oil that came out had a slight metallic sheen to it, very visible when I sloshed it around. It was my understanding that this should clear up after a couple oil changes... I'm hoping it comes out looking fresh, because I might have some serious issues if its not clearing up.
- Get someone to press the clutch while I watch the crank pulley for movement. I don't expect this to be the issue, but I saw this thread on GRM last night where Keith got me panicking about thrust failures: https://grassrootsmotorsports.com/fo...nt/5865/page1/
- Check vacuum fittings/hoses