Call me stupid

st2b

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Sep 15, 2006
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But I can't find a vac diagram anywhere. My car's idle is at 3,000 and on de-acceleration I can hear a VERY loud whistle. I checked the TSRM and couldn't find diagrams. And when the idle lowers to 1,000 (I have to do it by hand (Throttle)) it rumbles really bad.

Starter fixed, now it runs like shit.

EDIT
Found vac diagrams, still runs like shit

And the diagram I do have is for a turbo
 
Last edited:

AJ'S 88NA

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Jul 26, 2007
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Florida
st2b said:
It seriously sounds like the RFL BOV

=]

But I would rather my car perform better, than it run like crap but soun d like I have a BOV.
Just kidding. Sounds like you have a large vacume leak. If it's that loud you should be able to find it.
 

AJ'S 88NA

New Member
Jul 26, 2007
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Florida
st2b said:
Like half my lines are unpluged.. But it sound like it's coming from the intake manifold. I know it's vac lines because my intake manifold is in there REALLY good, brand new gasket and sealer.
Half your lines are unpluged? You think maybe that's were the leak might be?
 

iwannadie

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Jul 28, 2006
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gilbert, az
Have you pulled you fuel injectors lately, I had the same kinda thing going on. The old injector O-rings were cracked and leaking air at idle, sounded like a Big vac leak.

Use a piece of heater hose to your ear and move it around, you should be able to narrow the leak down doing that.
 

ValgeKotkas

Supramania Contributor
Apr 14, 2006
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iwannadie said:
Have you pulled you fuel injectors lately, I had the same kinda thing going on. The old injector O-rings were cracked and leaking air at idle, sounded like a Big vac leak.
Shouldn't it leak lots of gas then too? Mine sure did, almost a fountain:icon_bigg
 

cuel

Supramania Contributor
Jan 8, 2007
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Baytown, Texas
Did you make sure you got all the old gasket off both mating surfaces before you put the intake together? If there's any old gasket in there, it will leak. You need to take it to a shop and get them to put a smoke machine on it. You'll know where your leak is then.
 

iwannadie

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Jul 28, 2006
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gilbert, az
ValgeKotkas said:
iwannadie said:
Have you pulled you fuel injectors lately, I had the same kinda thing going on. The old injector O-rings were cracked and leaking air at idle, sounded like a Big vac leak.
Shouldn't it leak lots of gas then too? Mine sure did, almost a fountain:icon_bigg

At idle mine didnt leak a drop of gas, I sat in my garage for like half an hour with it at idle trying to track it down and no thing was wet. I drove it like 5 minutes the back of the fuel rail area was dripping wet with gas but it evaps so fast you can miss it easy.

Could also be the EGR gasket on the intake leaking...
 

cuel

Supramania Contributor
Jan 8, 2007
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Baytown, Texas
If the injectors are leaking at the fuel rail, it'll be gas. If they're leaking at the intake, it'll be vacuum.