A fuel leak on a diesel F350 is serious and needs immediate attention. Driving with a fuel leak is dangerous due to the risk of fire.
Here's what you should do:
1. Do NOT start the truck. This is crucial to prevent a fire.
2. Identify the precise location of the leak. Is it coming from a fuel line connection, a fitting, the fuel filter housing, or the injection pump itself? Take pictures if you can.
3. Contain the fuel. If possible, use absorbent material (like kitty litter or shop towels) to soak up the spilled fuel. Avoid open flames or sparks.
4. Have it towed to a qualified diesel mechanic. Do not attempt to repair this yourself unless you have extensive experience working on diesel fuel systems. Misdiagnosis and improper repair can lead to serious damage to your engine or a fire.
5. Describe the leak location and circumstances to the mechanic – use the pictures if you took any. The more information you provide, the better they can diagnose the problem.
Possible causes of a fuel leak in that area (assuming it's near the filter or lines) could include:
* Loose or damaged fuel line: A clamp may have come loose, a line may be cracked or corroded.
* Faulty fuel filter: A leak in the filter housing or its seals.
* Fuel injector O-ring failure (less likely in this location): while typically closer to the engine, a severe leak could drip back.
* Injection pump leak (less likely, but possible): A leak here is very serious.
In short: Safety first! Get the truck towed to a mechanic immediately. Don't attempt to drive or repair it yourself.
