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About LinkBacksanyone have any idea what this noise is or what could be causing it? it started after i did head gaskets and lim gaskets. thanks
2012-09-21_18-27-52_881_zpsd1c773e0.mp4 video by emkowjp - Photobucket
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noise after head gaskets and lim
This is a discussion on noise after head gaskets and lim within the 3.1L V6 (LHO/LG8) forums, part of the Engine category; anyone have any idea what this noise is or what could be causing it? it started after i did head ...
- 09-21-2012 #1SE Level Member
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noise after head gaskets and lim 08 gt mustang
87 t top resto in progress
01 gt grand prix (sold)
01 se grand prix
- 09-21-2012 #2I live here.
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Re: noise after head gaskets and lim All my speakers seem to be playing is a high pitched noise. Is that what you're referring to?
1997 Grand Prix GT - The IncREDi-hoopdy (aka Anna Nicole) -Your Not So Typical Top Swapped, XP'ed, IC'ed, 3.4" Pulleyed, SLP header build - 219000 miles and counting - now with broken GETRAG 5 Speed
http://www.grandprixforums.net/safely-modding-your-3800-a-67580.html
- 09-21-2012 #3SE Level Member
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Re: noise after head gaskets and lim yeah thats pretty much the noise. it doesnt sound like a vacuum leak to me but i cant really pinpoint where its coming from.
08 gt mustang
87 t top resto in progress
01 gt grand prix (sold)
01 se grand prix
- 09-21-2012 #4I live here.
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Re: noise after head gaskets and lim It kinda does sound like a shifted gasket, but the engine is running pretty smooth from what I can tell. Break out the carb clean and spray around. If it's a vacuum leak, you'll find it.
1997 Grand Prix GT - The IncREDi-hoopdy (aka Anna Nicole) -Your Not So Typical Top Swapped, XP'ed, IC'ed, 3.4" Pulleyed, SLP header build - 219000 miles and counting - now with broken GETRAG 5 Speed
http://www.grandprixforums.net/safely-modding-your-3800-a-67580.html
- 09-21-2012 #5GT Level Member
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Re: noise after head gaskets and lim ^ This
It does kinda sound like a vacuum leak though.2000 GTP - Stage 3 Heads - Gen V - 48# Injectors - Hardened Pushrods - Comp Limited Travel Lifters - LS6 Springs - Yella Terra 1.9 Rockers - S3 Phenolic Intercooler - N* TB - SD Headers - SR intake - ZZP 3.1 Pulley - Dyno Tune - Built 4T65E-HD - 12" Brake kit - SS brake lines - KYB GR2 Struts - 333WHP - 386WTQ
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Re: noise after head gaskets and lim ok i can try that but i dont think it does it until its warmed up. the car runs perfectly just has that squeal and do the rockers/lifters sound a little noisy? thanks again for the replies
08 gt mustang
87 t top resto in progress
01 gt grand prix (sold)
01 se grand prix
- 09-21-2012 #7I live here.
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Re: noise after head gaskets and lim Those lifters always sound noisy after LIM gaskets.
1997 Grand Prix GT - The IncREDi-hoopdy (aka Anna Nicole) -Your Not So Typical Top Swapped, XP'ed, IC'ed, 3.4" Pulleyed, SLP header build - 219000 miles and counting - now with broken GETRAG 5 Speed
http://www.grandprixforums.net/safely-modding-your-3800-a-67580.html
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Re: noise after head gaskets and lim also i dont have any carb cleaner just starting fluid will that work?
08 gt mustang
87 t top resto in progress
01 gt grand prix (sold)
01 se grand prix
- 09-21-2012 #9I live here.
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Re: noise after head gaskets and lim Not preferred, but it might work. Got brake kleen?
1997 Grand Prix GT - The IncREDi-hoopdy (aka Anna Nicole) -Your Not So Typical Top Swapped, XP'ed, IC'ed, 3.4" Pulleyed, SLP header build - 219000 miles and counting - now with broken GETRAG 5 Speed
http://www.grandprixforums.net/safely-modding-your-3800-a-67580.html
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Re: noise after head gaskets and lim i have brake cleaner but not sure what brand it is. also it idles perfectly and if i pull off a vacuum line it idles like crap.
Last edited by jpe; 09-21-2012 at 11:04 PM.
08 gt mustang
87 t top resto in progress
01 gt grand prix (sold)
01 se grand prix
- 09-22-2012 #11GTX Level Member
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Re: noise after head gaskets and lim No question about it, that IS a vacuum leak. Sounds like an F-16 sitting on the tarmak!
- 09-22-2012 #12SE Level Member
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Re: noise after head gaskets and lim where are the most common areas to leak? could it be the upper intake? thanks
08 gt mustang
87 t top resto in progress
01 gt grand prix (sold)
01 se grand prix
- 09-22-2012 #13I live here.
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Re: noise after head gaskets and lim See if pulling your oil cap off makes a difference. Try tightening the upper intake manifold with the car running and see if that helps. If those don't help pull the belt off and start it and see if it helps.
98 GTP 230K miles scrapped
04 Comp G 180*, HAI, poly db's, zzp stb's, UMI ta's, Speedbuilt sways, DNA springs, Port and polished heads, S1X, sd headers.
- 09-25-2012 #14Moderator
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Re: noise after head gaskets and lim It's a 3100...trust us..that's a vacuum leak. Check the stupid connections at the top of the TB. Those are super easy to have leak.
(Did anyone else have the vid open and think to themselves. I see the problem...it's a 3100. then the vid played.)
If Dave feels 60% throttle is 100%, what does he tell his wife.
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