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Accelerator Pedal Isnt Sensitive.., Too Much Give


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My accelerator pedal (94ls400,245kmi) isn't as taut as it should be, a good deal of pressing is needed to get powerful acceleration....which way should I go with this?

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My accelerator pedal (94ls400,245kmi) isn't as taut as it should be, a good deal of pressing is needed to get powerful acceleration....which way should I go with this?

"Taut"? Have you driven other 1994 LS400's that are different? By 1994 the LS400 had gained a substantial amount of weight due to more standard equipment and larger tires and wheels and was not as fast as the earlier 90-92 LS400. I had a minimally equipped 1990 LS400 for 13 1/2 years and it was much faster than the 93-94 LS400's I test drove.

The 95-97 LS400 got a little faster due to a 200 pound weight reduction and the 98-00 got a lot faster due to a very substantial engine power increase.

So ... the easiest way to get "powerful acceleration" is to get a newer LS. The 2000 LS400 I recently sold was dangerously faster than my 1990 LS400.

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  • 4 weeks later...

My 94Ls400 was giving me terrible transmission slipping symptoms, ( not shifting gears) & took it to the shop- no issues from mechanic. They said leave the ECT switch in "power" position. The cars has 245k on it.. Can someone weigh in on this?

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So it's not shifting gears but your mechanic couldn't find anything wrong? It sounds like it's in too high of a gear, not down shifting.

The ECT switch in power position makes the transmission stay in gear longer (higher engine revs) before shifting.

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