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1990 Lexus LS 400
Problem for Lexus 1990 LS 400

My 1990 Lexus LS 400 stalls unexpedly (at any




By at111 on Sep 05, 2009

" "
My 1990 Lexus LS 400 stalls unexpedly (at any speed).When put in neutral, it starts up and runs fine for a few minutes then stalls again. Why?
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Best Solution

posted on Sep 17, 2009
Very Helpful)

Madmaxman
Madmaxman

Rank: Wiz 
Rating: 93%, 13 votes
Your fuel pump or fuel pressure regulator are not supplying constant fuel pressure. Too much or too little is causing it to kill. You can pull the vacuum line from the regulaor and check for gas. If there is none, you need a pump, it is weak.
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Solution #2

posted on Oct 02, 2009
Not Rated)

bowlmongonty
bowlmongonty

Rank: Guru  Lexus Expert
Rating: 89%, 15 votes
computer, have it checked out. they are known for going bad.
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