huge boost leak

JDM GT Four, ST185RC and ST205.

huge boost leak

Postby frankyoung54 » Sat Jul 30, 2011 2:19 am

i have a serious boost leak on my 88 all trac it wont push over 4 lbs also i had recently instaled a bov and it wont work when im at a full spool anyone know where...because i have ziptied almost every vacume hose and replaced them.
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Re: huge boost leak

Postby alltracst185 » Sat Jul 30, 2011 12:45 pm

Usually it's the black coupler attatched to the throttle body that dry rots and leaks. Did you have this problem before the BOV install?
st185- HKS exhaust, Aussie mid pipe and custom 3" down pipe, Tial 50mm BOV, HKS 272 cams, HKS adj cam gears, custom FMIC, HKS GT3040, Tial 38mm wastegate, AEM ems, fully built bottom end, RC 1200cc injectors, at 25 lbs and almost complete :D
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Re: huge boost leak

Postby frankyoung54 » Sat Jul 30, 2011 2:53 pm

and its a little cracked but i went to the dealership to get the part and they said they cant get it that it was discontinued....and no as soon i as installed the bov i had the problem
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Re: huge boost leak

Postby 88gt4DE » Sat Jul 30, 2011 2:57 pm

Shouldnt be doing that ... pics on install ? where did put it in at ? classic t -hose set up ? Where did you get the vaccum from to run to the valve and what kind of valve is it ?
Rob
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Re: huge boost leak

Postby frankyoung54 » Sat Jul 30, 2011 3:03 pm

i put it on a t style flange and its a turbo xs rfl type h and its where the turbo is to the intercooler still have stock intercooler
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Re: huge boost leak

Postby 88gt4DE » Sat Jul 30, 2011 3:05 pm

ok ... when its starts to boost does the check engine light come on and you feel like you hit a brick wall ? if so you have a vaccum leak somewhere ... check hose going to drivers side of turbo housing and all the little hoses around where you were working ...
Rob
1988 ST165 - 77K - Project ---> http://www.alltrac.net/phpBB2/viewtopic.php?f=44&t=31483&start=240
2000 Toyota Tundra SR5 - 162K - DD - Thanks 97JZA80
2007 Toyota Rav4 - 110K - My girls DD
1999 Honda Civic - 116K - Highway Runner
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Re: huge boost leak

Postby frankyoung54 » Sat Jul 30, 2011 3:13 pm

well i have ziptied every hose and i think ima just end up hard piping it next week and do a fmic instead of the stock top mount and do a turbo swap from the stock one to a turbonetics 80mm
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Re: huge boost leak

Postby underscore » Sat Jul 30, 2011 11:40 pm

I'd fix this problem first, are you sure the cel isn't burnt out? i was restricted to 4psi when my ecu was tossing one.
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Re: huge boost leak

Postby frankyoung54 » Sun Jul 31, 2011 7:21 am

whats a cel and how can i tell if somethings wrong with my ecu could i get it flashed?
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Re: huge boost leak

Postby alltracst185 » Sun Jul 31, 2011 4:21 pm

Check your engine light by turning the key to on posision, a few lights including the check engine light should come on, start the car and they all should go out. There is someone on here that is selling the coupler you need, here is the link.

viewtopic.php?f=15&t=41689&p=395317#p395317
st185- HKS exhaust, Aussie mid pipe and custom 3" down pipe, Tial 50mm BOV, HKS 272 cams, HKS adj cam gears, custom FMIC, HKS GT3040, Tial 38mm wastegate, AEM ems, fully built bottom end, RC 1200cc injectors, at 25 lbs and almost complete :D
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Re: huge boost leak

Postby jonnyboygt4 » Sun Jul 31, 2011 4:53 pm

ive also got the piece that connects to the throttle body...its in good shape....pm me if your interested...
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