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purge canister solenoid hssing

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Old 02-10-2011, 05:02 PM   #1
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Question purge canister solenoid hssing

I had my check engine light come on the other day. I went to autozone and they put it on the computer reader and it came back with rich/lean on one bank and gave four or five reasons for this. I wasn't satisfied so I went to o'rielly's to see if I could get more info. The man there opened the hood and noticed a hissing sound coming from what he called the purge valve canister? does anyone know about these and will it cause this problem? How do u change this?
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Old 02-10-2011, 09:30 PM   #2
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http://repairpal.com/canister-purge-valve just a general idea of what it is...

I wonder if this is the hissing that my wife swears she hears..
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Old 02-17-2011, 07:54 AM   #3
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does anyone know if there is a special tool required to remove the hoses going to the purge valve canister?
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Old 02-17-2011, 09:22 AM   #4
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nope. You just have to squeeze the connector in the right spot and they should release.
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Old 02-17-2011, 10:52 AM   #5
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I noticed that the line running from the purge solenoid to the manifold was starting to dry rot on my truck. I just cut the connectors off with a razor knife and put a new piece of rubber fuel line on the connectors.
Yes if the solenoid sticks it can cause rich/lean conditions. You can unhook the line going to the manifold and plug it so you don't have a vacuum leak, then see if it throws a code again.
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Old 12-28-2012, 02:51 PM   #6
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Default canister purge wiring

My '88 with the 4.9 engine has a canister purge solenoid. The Hayne's manual shows it hooked to pin 31 of the ECM. My solenoid has no wires, and there's no opening for a pin 31 on the pin block. So is my truck supposed to have this wired up or not? Any help appreciated.
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