When fueling my truck it only allows a small amount in at a time?

2003 CHEVROLET S-10

177,000 MILES • 4.3L • 4WD • AUTOMATIC

NATHAN SLABAUGH

MEMBER
9 POSTS

I've been struggling with fueling my truck for the last few months. It'll only let me put a little in at a time. At times, after running the engine for 6-7 minutes, it'll let me slowly add while running the engine. At other times the fuel will come gurgling back out. Most of the time, I just keep a gas can on the truck and add until the filler neck hose is full, then let it find time to drain in when it wants to. What's my issue?

Jan 9, 2021 at 3:10 PM

ASEMASTER6371

✓ASE Certified Mechanic
52,796 POSTS

Good evening,

The canister vent solenoid is bad not opening and allowing air to escape during fueling.

https://www.2carpros.com/articles/how-emission-control-systems-work

I attached the procedure and the location for you of the valve.

Roy

REMOVAL PROCEDURE

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1. Raise the vehicle.
2. Lower the spare tire, underbody mounted spare tire only.
3. Disconnect the vent valve electrical connector.

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4. Disconnect the vent hose (1).
5. Bend back the tang on the bracket.
6. Remove the vent valve (3) from the bracket (2).

INSTALLATION PROCEDURE

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1. Slide the vent valve (3) onto the bracket (2).
2. Connect the vent hose (1).

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3. Connect the electrical connector.
4. Raise the spare tire, underbody mounted spare tire only.
5. Lower the vehicle.

Images (Click to enlarge)

Professional Diagram for 2CarPros Members
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Jan 9, 2021 at 3:42 PM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.