Sign in to follow this  

94 Ls 400 Shutters At 40 - 50 Mph

Recommended Posts

When I try to maintain a constant speed at around 40 to 50 mph, my 94 LS400 shutters. If I speed up faster, it's OK. I have noticed it seems to happen only when I am barely pressing the gas pedal.

This had happened back when I first owned the car at around 60,000 miles (now have 180,000). I had paid the dealer a lot of money on changing plugs and wires and other items. They had a hard time fixing the problem. The last thing showing on my Lexus maintenance records was that they 'cleaned the O2 sensor and wiring'.

Could this be the same problem?

Has anyone had this same problem?


Share this post

Link to post
Share on other sites


Could well be a dirty/noisy electrical track connection on the throttle position sensor, if you switch the overdrive off and maintain the same speed does the problem disappear?

Share this post

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this