What should the fuel pressure be on a Malibu?
What should the fuel pressure be on a Malibu?
When ready have your helper crank the engine while you observe the fuel pressure tester gauge. 2004-2005 3.5L Malibu: 50-60…
5L Malibu: 55-60 PSI. 2007-2008 3.5L Malibu: 56-62 PSI. CASE 1: The fuel pressure gauge registered 0 PSI. This test result lets you know that the fuel pump is not supplying fuel to the engine.
Where is the fuel pump on a Chevy Malibu?
The most accurate way to test the fuel pump on your 3.5L Chevy Malibu (Pontiac G6) is to use a fuel pump pressure tester. This fuel pump pressure tester is connected to the Schrader valve (see photo above) which is located on the fuel injector rail. To be a bit more specific, it’s located near the alternator and above fuel injector for cylinder #1.
What are the symptoms of a bad fuel pump?
Without gas your Malibu will not run at all. With that in mind, most of the symptoms of a bad fuel pump revolve around the vehicle stalling out or not running at all. In modern fuel injected vehicles, the fuel pump sits right in the fuel tank and “pushes” the gasoline to the fuel rail (s).
Where can I find the fuel pump wiring diagram?
NOTE: You can find the fuel pump circuit wiring diagram, for the 2004-2005 3.5L Chevrolet Malibu here: Fuel Pump Wiring Diagram (2004-2005 3.5L Malibu). For the most part, fuel pump failures fall into one of two categories. The most common is where the fuel pump fails completely and it stops sending fuel to the fuel injectors.
When ready have your helper crank the engine while you observe the fuel pressure tester gauge. 2004-2005 3.5L Malibu: 50-60…
5L Malibu: 55-60 PSI. 2007-2008 3.5L Malibu: 56-62 PSI. CASE 1: The fuel pressure gauge registered 0 PSI. This test result lets you know that the fuel pump is not supplying fuel to the engine.
The most accurate way to test the fuel pump on your 3.5L Chevy Malibu (Pontiac G6) is to use a fuel pump pressure tester. This fuel pump pressure tester is connected to the Schrader valve (see photo above) which is located on the fuel injector rail. To be a bit more specific, it’s located near the alternator and above fuel injector for cylinder #1.
What should the pressure be on a fuel pump?
If the 12 Volts are being supplied to the fuel pump then you have now 100% verified that the fuel pump is fried and needs to be replaced. CASE 2: Fuel pressure test gauge registered between 53-59 PSI. This is the correct and expected test result and tells you that the fuel pump is OK.
Without gas your Malibu will not run at all. With that in mind, most of the symptoms of a bad fuel pump revolve around the vehicle stalling out or not running at all. In modern fuel injected vehicles, the fuel pump sits right in the fuel tank and “pushes” the gasoline to the fuel rail (s).
If the 12 Volts are being supplied to the fuel pump then you have now 100% verified that the fuel pump is fried and needs to be replaced. CASE 2: Fuel pressure test gauge registered between 53-59 PSI. This is the correct and expected test result and tells you that the fuel pump is OK.
Where is the fuel pump test gauge located?
The fuel pressure test gauge can be easily connected to your car’s fuel system via the Schrader valve on the fuel injector rail. This Schrader valve is very easy to get to and in plain sight on the fuel injector rail. If you don’t own a fuel pressure gauge, you can rent one from your local auto parts store (AutoZone, O’Reilly Auto Parts).
What should fuel pressure be with key on but engine off?
NOTE: The fuel pressure specification of 53-59 PSI is with the key on but engine off (KOEO). OK, now that the testing part is done, let’s take a look at what your results mean:
