Q: Gasoline clog

asked by on

I am having gas problems. The screen keeps getting clogged with black gunky stuff.

If your C10 has a fuel filter at the inlet of the carburetor and it keeps getting clogged then there might be two possible causes. One would be the diaphragm of the fuel pump could be torn allowing engine oil to be sucked in by the fuel pump as it is mounted on the side of the engine block. Another possibility could be varnish from old fuel washing off the walls of the fuel tank. The fuel system, including pump, need to be inspected. The oil can be checked for a fuel smell, which would also indicate fuel getting into the oil due to a torn fuel pump diaphragm. The fuel system may need to be flushed including the carburetor. You may want to enlist the help of a mechanic, like one from YourMechanic, who can identify the the black substance and recommend the proper course of repair.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Gasoline clog

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Truck clicks one time but wont turn over.

Hi there. If the starter was replaced, first check the battery cables to the starter and make sure that they are tight. If the cables are tight, then the issue could be that the clutch may have broke causing the...

Q: Starting issues in a 1970 Chevy C10

Hello - this sluggish starting behavior sounds like inadequate current reaching the starter motor (or a worn out starter motor). Start by checking starter circuit electrical connections - make sure they are clean, with no corrosion, and there are proper...

Q: Engine stalling when in gear.

This is a transmission internal issue of trying to go into reverse and drive at the same time from a leaking valve body.

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.