Skip the auto shop - Our mechanics make house calls

Q: 2002 Chevy Trail Blazer dies out

asked by on

I have an O2 Chevy Trail Blazer. I've changed the sparkplugs and also cleaned the throttle body but I didn't change the fuel filter. Couple of weeks ago, it died on me, but it started back up. I'm having this problem. Is it the fuel pump?

The first thing you want to do is change the fuel filter. If the fuel filter is clogged, or has a problem, it will cause the symptoms you’re describing. So changing the fuel filter might solve your whole problem. If it doesn’t, then you need to have the fuel pump pressure tested which is how you test the fuel pump. You can test the pressure and also the volume. If that task is beyond you, get a mechanic like the guys from YourMechanic to come and do the testing for you to find a fix for why your car dies out.

Don’t guess with problems like this, it’s expensive and can often get you nowhere while wasting your money. The best thing to do is to run some tests first. Also, on that particular vehicle there’s no sensor telling the computer how much fuel pressure to pump. That being said, if you don’t have any trouble codes and the Check Engine Light isn’t coming on, often times the problem is the fuel pump.

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: Diesel don't want to come out of diesel pump

This is most likely a computer issue if the pump is working correctly. I would start with diagnosing the computer itself to be sure it is supplying power to the fuel pump. Check the fuel pump relay and fuses as...

Q: There is a ca clunk sound when shifting into reverse.

Hello. The technician you had look at the vehicle is correct. The symptoms you describe are that of faulty engine mounts, the torque mounts more specifically. This is a common issue on your particular vehicle and can be resolved in...

Q: was running in idle. went to reverse and it died. i turned it back on and it seemed to shake.

Hello. If the vehicle is turning off and idling rough then there is a problem with the powertrain. It can be an issue with the throttle body or possibly an issue with one of the engine sensors. I usually check...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...