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#1
11-25-2009, 05:33 PM
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HELP: did i just loose my tranny?
for the past couple days, ive had a fast acceleration till 2000 rpm then very very slow acceleration till 2500 rpm, past that the car picks up speed like hell as usual (4.6is).... on 3rd 4th and 5th gear. for a week now, ive tought that the car on automatic have had sluggish acceleration bc when gears pop, rpms drop to 2000 rpm on all gears so i tought acceleration was sluggish, but when tested on manual i found out that its only btw 2000 n 2500 rpms. HOWEVER, today, i found out that rpms wont even pass the 2000rpm limit on the 4th. doesnt matter how much i press (not to the point where it drops gear tho) it wouldnt accelerate. did i just lost my tranny? No error msg showing/ no sec prog showing. or could it b a dirty MAF sensor?
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03 4.6is Last edited by yd_dc; 11-26-2009 at 07:34 AM. 
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#3
11-26-2009, 10:08 AM
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If you're not experiencing slipping gears or hearing a metal-on-metal grinding sound (bad torque converter)...then it may not be trany related. If drive-ability is effected, i would have a dealer or qualified indy inspect.
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#5
11-26-2009, 12:29 PM
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Sounds like more of an engine/drivability problem than a transmission problem. Like you are having problems getting power to the transmission.
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"When you do things right, people won't be sure you've done anything at all" (Bender, futurama) You make something idiotproof, they'll make a better idiot You think professional is expensive, just wait until you pay for amateur. Never let your sense of morals prevent you from doing what is right. Examine what is said, not who speaks. X5 pics RIP 4.6is..... 2003 4.6is 
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#7
11-26-2009, 05:20 PM
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all those are pssible explanatin i will explore, but why is loss of power/ hesitation happening between 2000 and 2500 rpms? no slipping gear, metal on metal sound very rarely and only when engine cold during first 20 meters.
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03 4.6is
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#8
11-26-2009, 06:55 PM
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Metal on metal sound could possibly be your TC...very common issue with the 4.6iS. Check out this thread to see if the sound is similar:
Metal on Metal-Trany-Torque Converter
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