Skip the auto shop - Our mechanics make house calls

Q: Truck keeps bogs down and dies when I let off gas.

asked by on

I bought a truck and it had no gas. After I had put some in it, I drove it for around two hours. As I was turning it died and the Check Battery light came on. I popped the clutch and it started started back up, but every time I let off the gas it would die. I finally got it home, but even though it starts, every time I push the clutch it bogs down and dies, or almost dies.

It is very possible that you have a weak fuel pump. Having to keep your foot on the accelerator to keep the engine running is an indication of low fuel pressure. The pump works harder at higher RPMs in order to supply the engine with the correct amount of fuel. When the clutch is pressed down, you usually let off the accelerator slightly causing the engine to bog down. I would start by having a fuel system inspection performed by a professional from YourMechanic. Once the fuel system has been inspected the faulty part should be identified. The ignition system is likely not the cause in this circumstance due to the having to press the accelerator to stay running symptom. If the fuel pump is weak and in need of replacement, have the technician replace your fuel filter as well. A new fuel pump with a dirty fuel filter can cause problems later.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Vehicle overheating and major oil leak

It sounds like your vehicle may be overheating as a result of a few different possibilities, most importantly due to the oil leak and the coolant leaking. Overheating can be caused by a number of things such as low coolant...

Q: Car slowing and stalling

The oil lamp will illuminate whenever engine oil pressure is too low. The battery light will also illuminate whenever voltage is too low. The problem may be with your vehicle charging system i.e., your alternator. If your oil level is...

Q: Plug leaking fluid

Coolant expansion plugs can leak in two different ways, they either corrode through or the surface between the plug and the block/head surface develops a leak. In either case, however, the plugs cannot be re-used. The coolant expansion plugs must...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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...