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#1
02-09-2006, 09:35 PM
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Do you know what would cause this?
Ok, say im driving doing about 40mph and i come to a stop, i down shift to second and then just drop in neutral and when i do that the rpms drop below 1 and the lights dim like its gonna cut out. The car idles just fine but im just wondering why its doing that and if its a problem.
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==--92 Mitsubishi 3000gt SL--==  Mods So Far -------------- JSpec Engine 3sx Stage I Clutch 3sx Downpipe Unorthodox Underdrive Crank Pulley Bomex Bodykit 18x8 Chrome rims 
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#2
02-09-2006, 10:16 PM
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Re: Do you know what would cause this?
Might be your alternator going.
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96 3000gt vr4 -K&N FIPK -Proboost mbc -Cusco front + rear strut bars -Greddy type-s -ATR downpipe -no cats -15Gs, 3sx aluminum pulley, FMIC, SAFC, walboro pump, EVO 560ccs, and Meth Injection Kit all waiting to go in shortly. Your 1996 Mitsubishi 3000GT VR-4 is the 92nd out of the 315 that were made that year. Only 21 of which are exactly identical.
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#4
02-09-2006, 10:36 PM
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Re: Do you know what would cause this?
Autozone tests both for free.
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96 3000gt vr4 -K&N FIPK -Proboost mbc -Cusco front + rear strut bars -Greddy type-s -ATR downpipe -no cats -15Gs, 3sx aluminum pulley, FMIC, SAFC, walboro pump, EVO 560ccs, and Meth Injection Kit all waiting to go in shortly. Your 1996 Mitsubishi 3000GT VR-4 is the 92nd out of the 315 that were made that year. Only 21 of which are exactly identical.
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#5
02-10-2006, 07:43 AM
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Re: Do you know what would cause this?
As everyone else has said, alternator or battery. However, your car is supposed to idle at about 750 rpm, it should not idle above 1000rpm.
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A few "bolt on" mods, a couple "cut, smash, hammer, weld, etc" mods, and a couple "why the hell do I need this/what the hell is this" weight reductions.
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#6
02-10-2006, 08:31 AM
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Re: Do you know what would cause this?
I think your right, my alternator might be going now that i think about it.......great
Thanks guys
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==--92 Mitsubishi 3000gt SL--== Mods So Far -------------- JSpec Engine 3sx Stage I Clutch 3sx Downpipe Unorthodox Underdrive Crank Pulley Bomex Bodykit 18x8 Chrome rims
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#7
02-11-2006, 01:23 AM
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Re: Do you know what would cause this?
It's definitely the alternator. Those are the exact same symptoms that my car had while the alternator was dying. Just don't drive your car too much. If you do, you might drain the battery, hence your car won't start.
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Black 1997 3000GT  Quote:
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#8
02-11-2006, 01:43 PM
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Re: Do you know what would cause this?
My TT idles around 1200 or a little higher. If i leave it sit it jumps a bit between about 1500 and a little below 1000. What would be the problem here? if any?
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'93 Blue Stealth R/T TT Borla Cat Back K&N Cold Air Intake '92 Blue Stealth R/T w/ rebuilt auto. tranny being parted out! PM me for all offers, it must go!
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#9
02-11-2006, 06:20 PM
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Re: Do you know what would cause this?
my voltage regulator went out in my altenator. driving it down the road it was past the max voltage. at a stop light it would be at 11. it was bad enough that it blew out my headlights. luckily i had just pulled in my driveway that night they blew out. its most likely ur altenator.
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#10
02-12-2006, 02:24 PM
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Re: Do you know what would cause this?
Quote:
Faulty IAC. Irregular idle is caused by vaccuum leaks, spark plugs, and bad o2 sensors. Time to pressure test for boost/vaccuum leaks!
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96 3000gt vr4 -K&N FIPK -Proboost mbc -Cusco front + rear strut bars -Greddy type-s -ATR downpipe -no cats -15Gs, 3sx aluminum pulley, FMIC, SAFC, walboro pump, EVO 560ccs, and Meth Injection Kit all waiting to go in shortly. Your 1996 Mitsubishi 3000GT VR-4 is the 92nd out of the 315 that were made that year. Only 21 of which are exactly identical.
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