I took the car to a mechanic who said that he was going to adjust the transmission as it seems to shift harder than he thought....I agreed that it shifts a little hard with a clunk so he went ahead and did it.

...but it shifts real slow now. Its like it lags at the top of the gear before switching if you let off the gas near the top instead of shifting right away.

I am assuming he adjusted the modulator pressure....Does this sound like something that is okay or should I go in and adjust it myself....DIY?

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k