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  #15  
Old 20-09-2007
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Sorry to sound like newby - but im still fairly new to WJ's after selling my XJTD. Can you explain whats this tranny flash? I'm presuming it's got nothing to do with weirdos in odd clothing flashing their wa wa's !!
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Old 20-09-2007
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Quote:
Originally Posted by mountainman View Post
I'm presuming it's got nothing to do with weirdos in odd clothing flashing their wa wa's !!
yes... it really is that....

...

changes the 4 speed transmission on older grands to the 5 speed in the newer ones by updating the software for the transmission
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Old 22-09-2007
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Well, the deed is done! I've got a 5 speed auto! I am pretty happy with the outcome. As mentioned, the obvious results were lower rpm's on the highway. About 1700 @ 100, 1900 @ 110, & 2100 @ 120. What really got me was the 'pick-up' from 100kms/h. There's a definate gain in passing power & it feels like there is a higher top end. Not that I like screaming down freeway @ 140, but if I wanted to, I reckon the engine wouldn't be sweating nearly as much as before the 'flash'.

Too early for fuel comsuption, but its pretty obvious that a savings would be gained at highway/freeway speeds. It barely breaks a sweat @ 100-110

I even reckon that the shifts from 1-4 aren't as 'jerky' as before, but that could be me. It feels like it should have felt - if that makes sense?

The downside - It cost me $195!!. While I took the advice from previous posts -ringing around, questioning the time, etc., I finally got the sh*#ts, with dealers/service depts not knowing about it. The only other place I found besides York Motors, was Scuderia Veloce Motors Chatswood who quoted me $150, but the service advisors (foreman wasn't avail) response was "Yeah, I'm pretty sure we can do that, we've got all the equipment - $150". I was already booked for York & wasn't entirely confident with his response, so I thought I would try my haggling skills, seeing as MRGC paid $66 5mths ago. Plus, they obviously have done it a few times.

I presented a good case - previous flashes, Jeep club (repeat business), Ausjeep forum, etc. New management & prices were his response. I didn't put up much of a fuss & just copped it.

To their credit, York were cool to deal with - professional, etc. They even washed my rig! I also enjoyed perving on their range of Unlimted JK's. I wonder if one could shoehorn a 4.7L in one of those suckers?
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