LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

90 LS400 Idle Problem

Old 02-27-09, 07:22 PM
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thebaum
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Default 90 LS400 Idle Problem

Ive had a 90 ls400 for about 6 months now. I was in a wreck a couple months ago but was t-boned. The car ran fine after that for a couple weeks then started needing a jump to start. After a week or so of that it would die after I jumped it if I didnt keep the rpms up. I have researched all of the place and keep hearing about the IAC valve. On autozone it says the valve is $1000 and located on the front of the engine. In a lot of forums i keep reading it is around $80 and located under the PS pump. Can someone please steer me in the right direction. Thanks!
Old 02-27-09, 08:11 PM
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Rocan
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really hard for us determine without knowing the extent of the damage etc
Old 02-27-09, 08:27 PM
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thebaum
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I understand but the car was hit in the passenger rear door so i am not sure what that could have done to the engine compartment. Like I said it ran fine for a couple weeks then started acting up so I am not sure if the two are even connected. thanks again for your help
Old 02-27-09, 10:44 PM
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it's an electrical issue.
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