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Pickup truck trouble

B

burnt

Well-known member
Joined
Feb 28, 2008
Messages
6,617
Location
Mid-western Ontario
Truck won't take gas, only at a veeerry slow trickle. 2010 GMC Sierra.

My son's Dodge Ram did the same thing for a while but then it started taking fuel like normal again. Which is a bad thing for a Dodge Ram Hemi. . .

Anybody else ever have trouble like this?
 
littlejoe said:
if there's a vent tube on tank, it's probably bent or plugged.
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That's right. This time of year its pretty common. Few hours in the shop will fix it right up if its just froze off.
 
Well it ain't froze because we're still sitting at a comfortable 5 C!

Might have overfilled the truck one of the last times I fuelled it up and forced gas into the vent, causing an airlock maybe?
 
Littlejoe is probably right, it's not an uncommon problem on Chevrolet/GMC vehicles, and happened on our Impala recently. The vent was plugged and needed to let more air out as it filled.
 
burnt said:
Truck won't take gas, only at a veeerry slow trickle. 2010 GMC Sierra.

My son's Dodge Ram did the same thing for a while but then it started taking fuel like normal again. Which is a bad thing for a Dodge Ram Hemi. . .

Anybody else ever have trouble like this?
Click to expand...
If you're filling them from the same place, consider there may be water in the gas.
 
gcreek, problem is that it needs it but won't take it. I must not be very clear, either that or it's so cold out west that it's slowed your uptake a bit! :wink: Well you asked for it . . .

Traveler, we don't fill up at the same place since he is not in this area much.

I tried putting the shop vac onto the fill spout a bit at a time to see if it would maybe clear the vent but it made no difference. Might have to break down and take it in for the repair because it sure sucks standing there for 15 minutes to get a half or 3/4 tank and still spilling a lot on the ground cuz it blows back out. :mad:
 
burnt said:
gcreek, problem is that it needs it but won't take it. I must not be very clear, either that or it's so cold out west that it's slowed your uptake a bit! :wink: Well you asked for it . . .

Traveler, we don't fill up at the same place since he is not in this area much.

I tried putting the shop vac onto the fill spout a bit at a time to see if it would maybe clear the vent but it made no difference. Might have to break down and take it in for the repair because it sure sucks standing there for 15 minutes to get a half or 3/4 tank and still spilling a lot on the ground cuz it blows back out. :mad:
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Try parking your pickup so at least one wheel is up on a block. This gives the downhill advantage of gravity working in your favor. This is what I have to do with a couple of our pickups with Hydra-Beds, which is the only way it is even possible to fill them with fuel.
 
I read too quickly. Thought you meant it wouldn't accelerate. Sounds like the charcoal canister.
 
All of them here where the dust is some of the worst on planet earth they have to have a garden hose put on the vent and run up to the engine compartment. That's what the dealers do.
 
vehicles may experience premature automatic shut off of the fuel fill nozzle, or repeated fuel shut off at the fuel station delivery nozzle. Vehicles operated in muddy or dusty environments can encounter a dirt-clogged carbon canister system. More specifically, the carbon canister's vent, fresh-air box, and filters, clogged with dirt from operating in such environments.
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hope this answers it..
 
If your vent is plugged you will soon know for sure because your tank will collapse had it happen on an 04 2500.
 
Burnt wrote:
I tried putting the shop vac onto the fill spout a bit at a time to see if it would maybe clear the vent but it made no difference. Might have to break down and take it in for the repair because it sure sucks standing there for 15 minutes to get a half or 3/4 tank and still spilling a lot on the ground cuz it blows back out.
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Burnt, don't do that!! If you suck fumes out of the gas tank, they are passed by the vacuum motor. If the vacuum storage area get full of fumes, the damn things will explode from the sparks on the armature. Don't ask me how I know!!

CP
 
Sorry I didn't see this post earlier. I am a mechanic and this is what your problem is. There are two hoses attached to the filler neck, one large diameter where the fuel travels into the tank and a smaller diameter where air escapes from the tank when fueling also know as the vent hose. The vent hose is obstructed by either being kinked or by foreign material. Most likely kinked. Crawl under where filler neck is and follow small diameter hose to tank you should be able to see your problem. If not kinked then remove hose and locate obstruction. Really that simple. The charcoal canister is for venting while vehicle is running and not while fueling, it is an emissions control component. Your problem is your small diameter hose. Hope this helps.
I thought about this for a few more minutes and I dont want to condemn the small hose as the only problem. It could also be the larger hose is obstructed by crushing action or the anti-siphon ball is stuck in the up position in which it would prevent fuel from passing efficiently. Either way your issue is in these two hoses. If you find you need further instruction email me and i will gladly walk you through a diagnosis.
 
eatbeef said:
If your vent is plugged you will soon know for sure because your tank will collapse had it happen on an 04 2500.
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Ran my dads pickup out of gas one time because of that. The tank was sucking together and the gauge float was stuck on half.
 
Cowpuncher said:
Burnt wrote:
I tried putting the shop vac onto the fill spout a bit at a time to see if it would maybe clear the vent but it made no difference. Might have to break down and take it in for the repair because it sure sucks standing there for 15 minutes to get a half or 3/4 tank and still spilling a lot on the ground cuz it blows back out.
Click to expand...

Burnt, don't do that!! If you suck fumes out of the gas tank, they are passed by the vacuum motor. If the vacuum storage area get full of fumes, the damn things will explode from the sparks on the armature. Don't ask me how I know!!

CP
Click to expand...

I guess it was my lucky day! Or someone was looking after me in my ignorance . . . :shock: Thanks for the tip - sorry that you knew about the "why not".

Thanks for all the replies. Gearhead, I will be sliding under the pickup this morning to inspect the vent hose for a start. Thanks for the info.
 

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