P0440 code mystery, 2001 IS300 - Page 2 - Lexus IS Forum
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post #16 of 20 (permalink) Old 11-27-2016, 12:10 AM
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Im having the same issue with the weird rattling st low speed and had a cel for the same codes. Got rod of the codes by replacing the vsv but im still getting that weird whirring sound tho
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post #17 of 20 (permalink) Old 11-28-2016, 12:38 AM
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Im having the same issue with the weird rattling st low speed and had a cel for the same codes. Got rod of the codes by replacing the vsv but im still getting that weird whirring sound tho
Based on what the OP said, you may have a leak in one of the hoses. Since he didn't see it the first time around, I would check extra closely

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post #18 of 20 (permalink) Old 12-07-2016, 05:20 PM Thread Starter
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Im having the same issue with the weird rattling st low speed and had a cel for the same codes. Got rod of the codes by replacing the vsv but im still getting that weird whirring sound tho
The whining type noise I was hearing was the power steering pump, it's on the way out. The issue I was having with trouble starting the car after filling up I believe possibly had something to do with my car battery practically being dead. It completely died the other day. As far as the p440code I haven't driven quite enough miles yet but replacing the old cracked hose going into the purge valve I'm hoping solved this issue. I will post back after I get some more miles on it. I'm hoping there's not a bad fuel tank overfill valve(aka roll over valve) or a bad fuel pump.
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post #19 of 20 (permalink) Old 06-06-2019, 08:55 AM
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So, did fixing the cracked hose fix the problem? No more CEL?
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post #20 of 20 (permalink) Old 06-07-2019, 10:59 AM Thread Starter
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It's been a little bit now but I think the last thing that I did was I had a smoke test done and they found a leak in a long hose right in front of the driver's seat that goes down underneath the car and towards the back. I don't know the name of it if I saw a diagram I could point out. But either way if you're having an issue I wouldn't waste any time I would just go get a smoke test done. I think the CEL light was on for a while after they did that but eventually it just went away.
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