Motorhome Magazine Open Roads Forum: Another EXTERNAL Generator Question: Use Gas Siphon Pump?
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Open Roads Forum  >  Beginning RVing

 > Another EXTERNAL Generator Question: Use Gas Siphon Pump?

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NHguy

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Posted: 09/20/08 05:57am Link  |  Quote  |  Print  |  Notify Moderator

wwest wrote:

But how do you avoid the CEL that results from opening the gas cap without a fill-up..??

You won't get a check engine light on the vehicle from which you are siphoning unless you are running the engine with the fuel cap open. The vehicle system checks for a seal to keep emissions out of the atmosphere, and all your fuel in the tank. So have both engines off during the fueling. That's a good safety measure anyway.


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HookupAndGo

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Posted: 09/20/08 06:09am Link  |  Quote  |  Print  |  Notify Moderator

I use one of these: http://www.ezsiphon.com/. It is simple and easy, nothing to wear out. The clamp works good if you need to stop the flow.

Also, I have both sizes and detach the big hose from the pump (in an emergency) and the small hose fits snugly inside the large hose...the small hose pump then goes into the boat gas tank to get gas for the generator.


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ret-miner

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Posted: 09/20/08 01:46pm Link  |  Quote  |  Print  |  Notify Moderator

Have external generater on my class c I use walmart sym hose does the trick like you I did not want to carry gas can

magic43

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Posted: 09/21/08 12:00pm Link  |  Quote  |  Print  |  Notify Moderator

One thing to remember, you can't poke a tube down all filler openings. Some have baffels, etc. to prevent a siphon hoses from being used. As I said previously, check to be sure it works before you leave home......Then leave home "without the cans".


magic43

wwest

Redmond WA

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Posted: 10/01/08 10:02pm Link  |  Quote  |  Print  |  Notify Moderator

NHguy wrote:

wwest wrote:

But how do you avoid the CEL that results from opening the gas cap without a fill-up..??

You won't get a check engine light on the vehicle from which you are siphoning unless you are running the engine with the fuel cap open. The vehicle system checks for a seal to keep emissions out of the atmosphere, and all your fuel in the tank. So have both engines off during the fueling. That's a good safety measure anyway.


No, if the fuel system loses pressurization the CEL will illuminate indicating a failed evaporative vapor recovery system. If the fuel cap is opened and the fuel level doesn't increase the ECU assumes a failed evaporative system.

beemerphile1

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Posted: 10/02/08 07:45am Link  |  Quote  |  Print  |  Notify Moderator

I'm jealous of you people. I have one of the bulb type siphons but have never been able to use it with my van. It apparently has an obstruction in the filler neck to prevent siphoning.


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magic43

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Posted: 10/03/08 07:06pm Link  |  Quote  |  Print  |  Notify Moderator

I have never gotten a CEL and have siphoned gas many times.

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