Diesel Throttle Sticking
Hey, i've had an 81 rabbit for a while now, and it's always had a problem where the throttle will not drop the whole way when switching gears or putting it in neutral. The problem has worsened over time. to the point where i can be at regular idle, put the gas in a little and it will not drop AT ALL whereas it used to eventually return.
I've entertained the idea of it being one of the springs on the IP. I've entertained the idea that it's "running away" but since i'm venting the crankcase and the valve cover, i don't think it's due to blowby. The injectors have been removed recently, cleaned, and reinstalled after re-setting the heat shields. I'm not sure if they are problematic or not, haven't really thought about them that much.
Oh, one more thing, if it's stuck at 1/4 throttle (for the sake of things i'm saying 1/8 is idle), i can knock it back to 1/8th throttle (idle) by sticking it in gear and letting out the clutch to bog it down a little.
What could this be?
Thanks,
JB
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