Thread: Just got car now knocking

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  1. #221 Re: Just got car now knocking 
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    Quote Originally Posted by GTPpower View Post
    No way that will be enough.
    What do you suggest?
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  2. #222 Re: Just got car now knocking 
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    Quote Originally Posted by GTPpower View Post
    There is a gasket between the rear manifold and the downpipe. It's a metal crush bent gasket. You can use copper rtv instead if you want. The gasket is a one time use only.
    So I disconnected my downpipe during a rack replacement and reinstalled the gasket not knowing it was a 1 time use. I suspect a slight exhaust leak now and it sounds like that would be expected based on what you know?

    Thanks for clarity on my suspicion!
    2008 Grand Prix Base: Engine cover delete , flipped dogbone bushings, Transgo shift kit, Hayden 403 trans cooler,
    Quote Originally Posted by Yarbeau View Post
    we are all anal about our vehicles. Otherwise we would not be on an extinct platforms forum debating 3000 dollars cars!
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  3. #223 Re: Just got car now knocking 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    I've re-used that gasket several times before, haven't had a leak there.

    Maybe I'm just lucky and never damaged it.

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  4. #224 Re: Just got car now knocking 
    GXP Level Member GTPpower's Avatar
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    That's a crush bent gasket. One time use only, or it won't seal. Similar to the way a compression fitting works under your sink. If you reused it without a leak, you either have the felpro replacement, or you are stupid lucky.


    2001 GTP Drag Car - XPZ, Tischler heads, Upsidedown M90 IC'd, e85, Gen V, 2.3 w/ 5%OD
    2005 F350 6.0 - studded, deleted, tuned
    2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold
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  5. #225 Re: Just got car now knocking 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    I think I've had the downpipe out of my sisters car like 3 times already and everytime I just impact the bolts back on and send it. No leaks FTW.

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  6. #226 Re: Just got car now knocking 
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  7. #227 Re: Just got car now knocking 
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    Just to make sure do I drop timing only at wot or all across the board?
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  8. #228 Re: Just got car now knocking 
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    What I did right now with hptuners is drop timing by seven degrees from 5000 Rpm and up
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  9. #229 Re: Just got car now knocking 
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    Also would bad ground or bad battery cable make theft light come on
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  10. #230 Re: Just got car now knocking 
    Killa Bee Scottydoggs's Avatar
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    why so much timing removed? seems like a lot to pull. set to 13-14 of your knocking like mad or something. -7 is like 8º, thats weak for sure.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  11. #231 Re: Just got car now knocking 
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    Oh ok I just wanted to make sure but I just cranked it up again and it's rattling or something. I might just run it back through the auction and get what I can out of it
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  12. #232 Re: Just got car now knocking 
    Killa Bee Scottydoggs's Avatar
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    take the sc belt off and see if the pulley has slop in it, turn the pulley back and fourth, snap it back, if it clicks its just a bad coupler. they tend to make a racket at idle when bad. like rocks in the sc horrid sound.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  13. #233 Re: Just got car now knocking 
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    Where are all the grounds? I ha e a connections issue. With key on the check engine light flickers and the power train relay clicks really fast. Is the fuse box going out
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  14. #234 Re: Just got car now knocking 
    Killa Bee Scottydoggs's Avatar
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    tranny bolt has a stud on it, follow the neg cable if you dont see it right away. its under the cross over pipe somewhat. theres smaller grounds there as well, the wires tend to break off the eyelets sometimes, theres also a ground off the battery to the fender on the 04 up cars iirc.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  15. #235 Re: Just got car now knocking 
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    Ok that's what I thought. Thanks allot you've been a great help. Im going to upload a video of what is doing
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  16. #236 Re: Just got car now knocking 
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  17. #237 Re: Just got car now knocking 
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    Here's another video https://youtu.be/HGvN91PhJLA
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