Speedo fix and tranny shift points??? What to do??? - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 4 Old 12-06-2007, 07:54 AM Thread Starter
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Speedo fix and tranny shift points??? What to do???

I'm taking the Jeep in tomorrow for the brake recall and while its there I was gonna ask them to reflash the ECM for the bigger tires. They said they can do a "pinion factor adjustment" and that will fix the speedo but they don't think it will affect the tranny any. Then I read this thread and saw the someone paid $90 for the reflash and that there's the AccuPro available as well.

What should I do? Has anybody had this done from the dealer lately? Did it work? $$$$ ??? Should I just get the programmer and do it myself?

2007 JK Unlimited Rubicon. Superlift 4", ProComp extreme alloys, 35" MTZ's.


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post #2 of 4 Old 12-07-2007, 06:42 AM Thread Starter
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So nobody's had the dealer do this? Or got any feedback on the AccuPro or other programmers?

2007 JK Unlimited Rubicon. Superlift 4", ProComp extreme alloys, 35" MTZ's.


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post #3 of 4 Old 12-07-2007, 07:10 AM
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The Accupro works great. I have my speedo dead on now, and the tranny knows when to shift correctly now since the speeds are correct with the RPMs.
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2007 Rubicon Unlimited: MODS: Superior 5.13 Gears, Black Diamond 3" Lift, 1" M.O.R.E. Body Lift, FT Rear Adj. Trackbar, 15x8 ION 170 wheels, 37x12.50x15 Goodyear MT/R's, Superwinch EPi9.0, Smittybilt SRC front bumper, IGGEE Black/Charcoal seat covers, relocated muffler (Magnaflow 11376).

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post #4 of 4 Old 12-07-2007, 01:57 PM Thread Starter
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Well it looks like I may have to go that route anyhow. The dealer said they can't fix it after all.

2007 JK Unlimited Rubicon. Superlift 4", ProComp extreme alloys, 35" MTZ's.


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