Ok i first suspected tht I had a vacuum leak. I did. Fixed it and I still have low boost. 3.3 -4.3 I believe.
Now the bbv is stopping boost. Took lines off and instantly got full boost Lol. How can I resolve this? Do I need a new BBV?
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05-30-2012
Ok i first suspected tht I had a vacuum leak. I did. Fixed it and I still have low boost. 3.3 -4.3 I believe.
Now the bbv is stopping boost. Took lines off and instantly got full boost Lol. How can I resolve this? Do I need a new BBV?
05-30-2012
Local junkyard...go yank a bunch of them off...have you done a carb cleaner check to make sure its not a vac leak?
05-30-2012
Yea I've sprayed everywhere. Does it have to be carb cleaner? I've tried with water.
05-30-2012
Also do I just need the bbv? How do I remove it?
05-30-2012
Water?
LOL, no.
CARB CLEANER.
Spray it around while the car is idling. If the idle surges, jumps up or it almost kills the car...then you've found your leak...follow the blower, LIM, TB, vac lines, fuel injectors, etc...all that crap.
And you have to unplug it, then remove the 3, 10mm bolts from the blower that hold it in...it is worlds easier with the supercharger off the car though...so, expect a few hours ****ing around.
05-30-2012
Alright thanks lol. I'll try the carb cleaner.
05-30-2012
Before replacing it, I would try and spray some PB Blaster on the shaft of the BBV and work it in. It may just be getting hung up.
05-30-2012
Yea I tried that to no avail. I'm leaning toward a vac leak though even though I'm reading 19 vacuum at idle. Just changed the spark plug wires and now no boost. Bbv couldn't have just died
05-30-2012
Does it go to full boost if you hold the shaft all the way up?
05-30-2012
Are you sure you got the plug wires on there right? lol...
2 4 6
ENGINE
1 3 5
^^YOU STANDING IN FRONT
Coils go from top to bottom:
6
3
2
5
4
1
05-30-2012
Haven't tried holding the shaft yet. I'll try that in a bit. Just hold the shaft in bbv and have someone apply the gas?
Also hmmmm I'll check the wires ASAP lol. I thought me changing them one by one would help lol. I'll double check.
05-30-2012
Yeah, its a two person job. One holds it up and the other gives it gas and watches the boost.
05-30-2012
Happened to me two weeks ago. 4 psi at WOT. I got a bbv from the junk yard and I have full boost again. They can just go bad.
05-30-2012
Was it hard to remove and replace?
05-30-2012
LawlllllllOriginally Posted by Bluemagic
05-30-2012
No. Just a few bolts then disconnect the rod. Try not to tear the vacuum hose when disconnecting it.
05-31-2012
Ok plugs are correct, tried carb cleaner no idle changes. I have a question though does the shaft for the bbv disappear Into the bbv or does it stick out halfway at idle? Mines doesn't fully retract into the bbv here is a pic
This is how it sits with the car off
05-31-2012
that's right. the butterfly is open at idle. if you rev it you should see it move down a little, but not fully close.
it'll only fully close once you actually get into boost.
05-31-2012
Ok great, also the shaft trick, if someone holds it and I see full boost then what's next? Or I don't see a change in boost then what?
05-31-2012
Ok I tried this. And the the rod shot down while I was holding upward. Am I doing it wrong? Or should I hold it tighter?
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