Gas caps to vent or not to vent? - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
 
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post #1 of 11 (permalink) Old 05-08-2008, 01:44 AM Thread Starter
 
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Gas caps to vent or not to vent?

I went to the LPS for a locking cap. Took me a minute to decide if I should buy vented or not? What are your thoughts on this subject?
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post #2 of 11 (permalink) Old 05-08-2008, 01:51 AM
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IDK, I'm actually interested of the answer here... my engine will go dead if I try to add fuel while it's running, so IDK what kind of venting malfunction I might have. I was looking at a locking gas cap, but I haven't bought it yet.
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post #3 of 11 (permalink) Old 05-08-2008, 03:50 AM
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If you buy a vented one, you will get a CEL(check engine light).
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post #4 of 11 (permalink) Old 05-08-2008, 03:51 PM
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Originally Posted by XGX View Post
my engine will go dead if I try to add fuel while it's running.
I don't think you should be doing that anyway. All the gas stations near me all have big signs saying that it is illegal to add gas with the engine running.
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post #5 of 11 (permalink) Old 05-08-2008, 06:37 PM
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I don't think you should be doing that anyway. All the gas stations near me all have big signs saying that it is illegal to add gas with the engine running.
My trep is the first car that I've ever cut off to put gas in. In GA it's not illegal, thats funny that it IS illegal in MI.
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post #6 of 11 (permalink) Old 05-08-2008, 10:22 PM
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Quote:
Originally Posted by Merelance View Post
I went to the LPS for a locking cap. Took me a minute to decide if I should buy vented or not? What are your thoughts on this subject?
The fuel cap has a relief valve in it, designed to open at a pressure of 17kpa (2.5 psi) or a vacuum of 2kpa (0.6 in hg). ----2002 and 2003 FSM. Your '04 may have different specs but I'm quite sure it will also have a relief valve in it. If you use the wrong cap, you will have a check engine light constantly on while driving.
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post #7 of 11 (permalink) Old 05-09-2008, 11:24 AM
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My trep is the first car that I've ever cut off to put gas in. In GA it's not illegal, thats funny that it IS illegal in MI.

read the warning on the gas pump sign i am sure it say s shut it off !!
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post #8 of 11 (permalink) Old 05-09-2008, 12:31 PM
 
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My trep is the first car that I've ever cut off to put gas in. In GA it's not illegal, thats funny that it IS illegal in MI.
Its illegal in most, if not all states.

Most gas caps do have some relief valve built into them to purge with either a certain amount of pressure or vacuum. Kinda have to.
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post #9 of 11 (permalink) Old 05-09-2008, 07:01 PM
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partsformydodge.com has 45$ locking gascaps, ouch
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post #10 of 11 (permalink) Old 05-11-2008, 12:11 PM
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Illegal or not. What is the point of running the engine while refueling?

The only answer is waste. Waste fuel, waste air. Shut it off.
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post #11 of 11 (permalink) Old 05-11-2008, 01:23 PM
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partsformydodge.com has 45$ locking gascaps, ouch
They'd better be gold-plated. Mine was 10-12 at Wally World, back when I used to shop there. No CEL, no problems or anything.
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