Help! Thump when letting off gas
#1
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Help! Thump when letting off gas
So I just recently got my 95' LS 400, and it has been a great smooth car. But just a few days ago my car started acting up. It seems that whenever I press on the gas or let off the throttle suddenly I hear a loud thump that sounds like it's coming from the rear wheels. That usually happens when the engine is cold, but even when the engine is warm and I start accelerating faster or going hard in the car it starts again. Is this a transmission problem?
Last edited by RA40; 09-23-14 at 10:48 AM. Reason: descriptive title
#3
Universal problem in the early model year 95's. There's a funky problem with the ECU. Had the same issue myself, turned out to be this:
https://www.clublexus.com/forums/ls4...g-off-gas.html
Look at my posts, #9, and #19 for the revised part numbers, so you will know what to look for.
https://www.clublexus.com/forums/ls4...g-off-gas.html
Look at my posts, #9, and #19 for the revised part numbers, so you will know what to look for.
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