newwave88

Can anyone give me some help. I have a 1998 LS400 with 83K. I just had the transmission flushed and fluid replaced. The tech said the oil was like a smoothie and had a lot of bubbles in it. I was experiencing a harsh late (2000-2250 rpm) 1st shift when I 1st start it in the morning only. Then after the 1st shift of the day, everything seems normal.(1600-1650 rpm on light pedal). Now after the fluid change, the 1st shift of the day is still delayed, but is more crisp. Is this normal?

Brian S

AFAIK, this normal. I think the engine tries to warm itself by providing a late first shift when the engine is cold. My GS did it and now so does my LS. Just don't pounce on the pedal when it's cold and let it gradually rev up until it shifts.

Brian

GRAND_LS 4

iTrader: (2)

Its perfectly normal, a lot of my cars did this, including my 98LS.

newwave88

Thank you guys for the quick reply!! I feel a whole lot better. Should I worry about what the tech said about the fluid looking like a smoothie? and with lots of air bubbles?..Thanks again

GRAND_LS 4

iTrader: (2)

when was the last time the transmission fluid was changed?

newwave88

I just bought the car at 82,000. I had the trans oil changed at 83,000, I really don't know what history the car previously had..

GRAND_LS 4

iTrader: (2)

Go to ANY Lexus dealership, and they can print out a list of everything done to the car since day one at any Lexus dealership.

Gives you an indea of what might needs to be replaced.

newwave88

Thanks for the advice. I had that done and the only major service the Lexus records show is a 60k. I asked the dealership what they do, they said "inspect" the auto trans fluid. I guess I will just start a trans pan drain when I do oil changes for a while to keep an eye on the transmission. Thanks again for your advice!

jtparkes

My '99 does exactly the same thing on the first shift. I asked the dealer about this when I had it in for service, and they said it was normal (althought they didn't explain it).

I like Brian's explanation, and advice