Thread: Vibration

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  1. #1 Vibration 
    SE Level Member RICHEYSGTP's Avatar
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    I've got 04 gp and anytime I'm on the gas or with cruise set I get a vibration as soon as I let off the gas it stops
    I don't really feel it in the steering wheel just in floor board and seat
    Car has new brakes rotors calipers tires and alignment. Don't just wanna throw parts at it
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  2. #2  
    GT Level Member Sushamouf's Avatar
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    Its probably going to be one of the CV axles. I would check motor/trans mounts too.

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    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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  3. #3  
    SE Level Member RICHEYSGTP's Avatar
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    Thanks I'm hopeful it just a cv axle or tie rod and I'll have the mounts all checked also. There's 3 of them?
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  4. #4  
    GT Level Member Sushamouf's Avatar
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    There are four. One engine mount, one trans mount, and the two dog bones. The problem child is usually the engine mount because its hydraulic and usually fails.

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    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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  5. #5  
    SE Level Member RICHEYSGTP's Avatar
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    Ok I've got underneath. The trans mount is dry and looks clean
    The lower engine mount has oil/ grease on top of it and all over front of oil pan
    Is this what they do when they go bad?
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  6. #6  
    GT Level Member Sushamouf's Avatar
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    They leak, but your oil pan gasket leaking is probably what you are seeing.

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  7. #7  
    SE Level Member RICHEYSGTP's Avatar
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    Ok think I got it figured out the vibration got hella bad when accelerating and cornering right at higher speeds I bought new cv axles and tie rod ends
    Hopefully the repair goes smooth I've never done cv axles
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  8. #8  
    GT Level Member Sushamouf's Avatar
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    Make sure you get an alignment when you're done if you are doing the tie rod ends.

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  9. #9  
    SE Level Member RICHEYSGTP's Avatar
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    Ya I will next weekend I just painted the old tie rod and threads so I'd know where to tighten it to
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  10. #10 Re: Vibration 
    I live here. SlowNA06's Avatar
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    Quote Originally Posted by RICHEYSGTP View Post
    The lower engine mount has oil/ grease on top of it and all over front of oil pan
    Is this what they do when they go bad?
    Quote Originally Posted by Sushamouf View Post
    They leak, but your oil pan gasket leaking is probably what you are seeing.
    I'm going to disagree based on personal experience, though I can't say for sure if that's where the rumble comes from. Besides, you'll need a solid rubber lower engine mount to replace that fluid filled one sooner or later... it's cheap, it's easy.
    Irridium spark plugs last 100k mi and work just as well as copper. Copper is a waste on N/A and only lasts 15k mi. Don't use Platinum.
    Use 195* tstat unless you can thoroughly explain why not; 99.9% don't need a lower temp.
    Almost any oil filter, ever, is of higher quality than ACDelco. Spend $6+.
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