Q: Check Engine Light is on with code P0453 - 2002 Chevrolet Silverado 1500

asked by on

Pulling a PO 453 code.

Could the cause be the pressure sensor on top of the fuel pump assembly Car runs fine, I did install a new gas cap

My car has 70000 miles.
My car has an automatic transmission.

Hello. Most of the time, when this code comes up, it is either caused by a leak in the EVAP system or a failure of the sensor. Typically, the issue is the sensor itself not reading correctly. I will usually do a smoke test first of the EVAP system just to make sure that there are not any leaks.

If there are any leaks, then those need to be fixed. If there are no leaks, then the sensor itself needs to be replaced. If you are looking to have this code fixed, consider having a certified mechanic, such as one from YourMechanic, come to your home or office to determine why the Check Engine Light is coming on.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. Check Engine Light is on with code P0453 - 2002 Chevrolet Silverado 1500

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: Loss of power once I hit 70-80 mph

Hi there. Check the fuel pump and make sure that its working. Check the fuel pressure on the fuel rail and see if there is a loss of pressure. Its common for the fuel pump in the Silverado 1500 models...

Q: Car is running hot, I have replaced the relay, the thermostat, the radiator, the cooling sensor, and water pump.

Hi Jessica. When an overheating problem occurs, it can be due to multiple issues such as obstruction of debris inside the heater core or coolant lines, air bubbles in the coolant lines or failure of the radiator fan. Before you...

Q: Who knows why the tires are different sizes

Without knowing the model vehicle, it's hard to say. The only thing that I can add is in my 30+ years of working on cars, I've never seen a vehicle equipped with larger wheels/tires on the front. Having larger wheels/tires...

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 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...
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.