Skip the auto shop - Our mechanics make house calls

Q: 2008 GMC Yukon won't start

asked by on

I'm very frustrated because I had my vehicle towed to the dealership and they replaced the fuel pump. Did it work? NO. I had to get someone to pick me up. Later, about 10 hours, he took me back to my truck and it started just fine. The dealership wants to replace the fuel pump 'again' -- what is your assessment of this?

The fuel pump is controlled by a fuel pump flow control module. If the fuel pump comes on/off, this could very likely be your issue. The good thing is that the fuel pump makes an audible noise when cranking, so it is easy to see if it is coming on. Now, fuel is only one ingredient needed for an engine to run, the ignition system and induction system also need to be looked at along with engine computer inputs such as the crankshaft sensor. Fault codes, also needs to be read out and corrected. You may want to enlist the help of a mechanic, such as one from YourMechanic, who have the equipment and expertise for a second opinion on your car starting issue. They will be able to make the necessary repairs to get your car back running.

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: Burns a quart every 1500 miles

Your engine oil usage is considered normal when you ask a dealer or manufacturer. They will tell you that one quart for every 750 miles is considered okay by their standards. Has your Accord always used this much oil,...

Q: Car stalls when decelerating and/or going over bumps, especially speed bumps.

The most common cause of this intermittent stalling is due to a few potential problems. The most common faults would be: a wiring fault failing fuel pump an open or short in a sensor Intermittent issues can...

Q: I have a problem with my truck vibrating.

If a motor vibrates while in park idling, there is either a balance issue with the motor or an engine mount problem. Locating such problems is not for the faint of heart. There are several techniques that can be done,...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...