Thread: Acting weird

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  1. #1 Acting weird 
    GTX Level Member 98buicksupercharged's Avatar
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    Okay so I have an 01 gtp.
    When I'm driving the Rpms will drop on the tach
    other times the Rpms drop and the car shuts off and takes a bit of work to start Again. Sometimes it just acts like I have a dead battery
    any opinions?
    2001 sliver gtp her name is Reagan
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  2. #2 Re: Acting weird 
    Killa Bee Scottydoggs's Avatar
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    sounds like a crank sensor, but check all your grounds first.

    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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  3. #3 Re: Acting weird 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Replace the crank sensor yet?

    Tach dropping to zero while driving is the very common crank sensor failure.

    SMGPFC Member #1
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  4. #4 Re: Acting weird 
    GTX Level Member 98buicksupercharged's Avatar
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    Oh okay. And I have not changed yet. How hard are those to replace?
    2001 sliver gtp her name is Reagan
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  5. #5 Re: Acting weird 
    Killa Bee Scottydoggs's Avatar
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    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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  6. #6 Re: Acting weird 
    Moderator dsmuts's Avatar
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    They aren't to bad if you can get the crank off
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  7. #7 Re: Acting weird 
    GTX Level Member 98buicksupercharged's Avatar
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    That's the only thing I'm worried about. Trying to get the crank but off. I need to do it today. It took me 30 minutes of battling to start my car today
    2001 sliver gtp her name is Reagan
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  8. #8 Re: Acting weird 
    Turbo is the way to go. REDCRAPGP's Avatar
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    Breaker bar+ a long extension + vice grips on the flexplate should pop it loose. If not you can try to possibly take it to a mom n pop shop and see if the they're willing to loosen it with a impact enough for you to do the rest at home.
    Squirrels are my engine. I need a Ford Regal
    04 Comp G.
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  9. #9 Re: Acting weird 
    Killa Bee Scottydoggs's Avatar
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    or the red neck way.


    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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  10. #10 Re: Acting weird 
    Moderator dsmuts's Avatar
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    Redneck way always works
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  11. #11 Re: Acting weird 
    GTX Level Member 98buicksupercharged's Avatar
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    We will see. Guess I'm riding bike to work for a while
    2001 sliver gtp her name is Reagan
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  12. #12 Re: Acting weird 
    Moderator dsmuts's Avatar
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    I might be up in ft Wayne this weekend. My dad's in luthren. I could help out if you need
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  13. #13 Re: Acting weird 
    GTX Level Member 98buicksupercharged's Avatar
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    That's not good man. And yeah if I decide to do it your always welcome!
    2001 sliver gtp her name is Reagan
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  14. #14 Re: Acting weird 
    Moderator dsmuts's Avatar
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    I'll text you if I head up there and have time. I might take the bike to save on gas if it's nice out so I wouldn't be able to bring any tools with me.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  15. #15 Re: Acting weird 
    SE Level Member marineinmichigan's Avatar
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    Speed control sensor causes symptoms like that

    Sent from my SPH-L720 using Tapatalk
    Using Tapatalk
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  16. #16 Re: Acting weird 
    I live here. 02NavyBlue's Avatar
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    Check grounds first. "acts like I have a dead battery" is not a crank sensor symptom. It would still crank. Also when you say that, do you mean that even the lights inside are dim or not on at all? Or the starter just won't engage or turns slowly?
    2006 Grand Prix GT S/C 109k - Modded Transgo Shift Kit, Gutted Airbox, Dash Cam, and Inlays. Retros soon to come.
    2002 Grand Prix GT N/A 127k - Same as 06 Plus: Trans Cooler, DIY Aux Input, LED lighting, Suspension Upgrades, Tint, Retrofits.
    Sold.
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