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Is this a fuel line problem?
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wholeinone04
New User
Jul 21, 2011, 9:12 AM
Post #1 of 2
(3441 views)
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Is this a fuel line problem?
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I have a 1995 Lexus ES300 with 180k miles. Occasionally, when I start the car, the engine turns over and begins to idle, but very quickly comes back down and will either stall completely or waver back and forth and then, may or may not stall. This problem used to happen very infrequently(once every 3 months or so), but has been happening more and more often(1-2 times a week).
I use the following solution: After the car stalls, I turn it on again, with the accelerator all the way down, so the engine revs up to 5 or 6000 rpms and when I let the engine come back down, it is almost always able to idle like normal. I'm not a car expert, but it seems like maybe the fuel lines are clogged and when I rev it, it breaks up the clog??
Thanks!
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 21, 2011, 11:13 AM
Post #2 of 2
(3429 views)
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Re: Is this a fuel line problem?
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First eliminate all vacuum or air leaks in the system. You may have a bad IAC ( idle air control) but try cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.
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