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Cope
07-19-2010, 07:02 PM
Are there any danger of running a car with a broken Blow off valve???

Thanks,

Cope
Sentry
07-19-2010, 07:06 PM
Stuck closed, nope.
Stuck open you can overspeed the turbo and your engine will be intaking unfiltered air.
Cope
07-19-2010, 07:11 PM
What do you mean by Stuck closed and stuck open?

Thanks,

Cope
7-Eleven
07-19-2010, 07:12 PM
how you broken? diagnosis?
Cope
07-19-2010, 07:14 PM
Well when I'm shifting at high psi, the bov doesn't evacuate the air and the idle which was at about 1500 rpm is now at 750 rpm.
Pollywog
07-19-2010, 07:17 PM
Originally posted by Cope
Well when I'm shifting at high psi, the bov doesn't evacuate the air and the idle which was at about 1500 rpm is now at 750 rpm.

That is the worse of the two possible situations. I would replace that ASAP.
Cope
07-19-2010, 07:21 PM
But can I still drive it around, because my mechanic is gone for a week, and we will change the timing chain in a week, so while the motor is out, it would be easier to work with the bov.
Pollywog
07-19-2010, 07:28 PM
Originally posted by Cope
But can I still drive it around, because my mechanic is gone for a week, and we will change the timing chain in a week, so while the motor is out, it would be easier to work with the bov.


Keep the rpm's low and you should be fine.
Pollywog
07-19-2010, 07:31 PM
By the way, if you are at all technically inclined you might as well just take it apart, wire-brush out the inside, lightly add some oil and you might fix your problem right there. Stuck BOV's are more common than people think - half the time some elbow grease and a hammer works worn/rusty BOV's free.

Are you not noticing any compressor surge/fluttering while driving?