Check fuel cap light & vapor canister - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 02-13-2009
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Check fuel cap light & vapor canister

Today while I was driving the "check fuel cap" light came on. The gas cap was on. There are no visible leaks. I did not notice a fuel smell around the gas cap or filler neck, but I did notice a faint fuel smell around the vapor canister.

I'm going to try replacing the gas cap first just to be sure, but I've got a sinking feeling it's something else.

I checked for codes. There are none.

Can the vapor canister be removed with the bed on? My truck has Line-X covering the bed bolts, so it's really only accessible from below.
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Old 02-13-2009
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My truck it can but I have a body lift. I don't know, if it would it would be super tight.
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Old 02-13-2009
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The bed bolts will come out if they have to, I just want to avoid tearing up my Line-X to get at them.

I did finally get a code...P0457: evap leak (fuel cap loose/off)...which is nothing the light on the dash didn't already tell me.
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Old 02-14-2009
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It ended up just being the vacuum line to the purge valve. It got knocked loose somehow.
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Old 02-14-2009
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Quote:
Originally Posted by 04blackedge View Post
My truck it can but I have a body lift. I don't know, if it would it would be super tight.
its actually not that bad removed one before taking the bed off is tons easier

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Originally Posted by pacodiablo View Post
It ended up just being the vacuum line to the purge valve. It got knocked loose somehow.
sounds good!
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Old 02-14-2009
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did your gas cap make a funny noise at all lol
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Old 02-14-2009
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Nope, no noise.
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Old 02-15-2009
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Where is the purge valve in the 3.0s? I cant fine mine :(
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Old 02-15-2009
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It's under the hood, on the driver's side near the master cylinder. It has two rubber fuel lines going into it and a vacuum line that goes to the intake manifold. It's a black plastic thing.
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Old 02-15-2009
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Here, its what the hoses are running too. Its on the right side of the engine bay sort of below the fuse panel.

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