TSB 18-041-18 -- Flash: Powertrain and System Improvements (PCM Reprogram) - September 7, 2018

RobNY

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wv18jl

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Thanks for info ... gonna schedule it tomorrow.
 

WXman

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So I noticed that you highlighted the bit about the blower fan being loud (because it blows a LOT of air). Does that mean we can assume that this updated PCM flash will reduce the interior blower fan speed?

If so, count me out. I'd rather have better airflow.
 

Pra3torian

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Not sure how anyone could like that extremely loud, ridiculously annoying noise.
Bought mine in the beginning of 19. Had it serviced for the death wobble, just wondering why they wouldn't have fixed it then? I actually have to tell them that I'm not happy with the Nasa launch going on under my hood? Thanks man!
 

Pra3torian

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I noticed similar things with my JL. The fan only kicks on when it's over 85°. My concern is if once the software is flashed will the integrity of the engine be comprimised? It must have some effect on the engine after being flashed if it's quite. Does the engine run hotter? Any info would help. Thanks!
 

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