What should fuel pressure be on 87 Chevy truck?
87 Chevy truck 5.7 Boggs down when mashing down changed fuel pump and filter and pressure is 15psi and after driving few miles does it if you barley mash the gas check engine light comes on and code say 02 sensor changed to.any suggestion
When does the fuel pressure drop in a truck?
Need to keep in mind both pressure and volume. With a very restricted fuel filter you can have plenty of pressure if the engine is not running or at idle, but as soon as you put a load on it and more fuel is required than the filter can pass then the pressure will drop.
What should the fuel pressure be on a 1998 GM Truck?
I’m almost certain my Haynes manual had the fuel pressure spec listed. For my ’98, the fuel pressure should be ~60 psi. I assume it would be the same for your ’01. I have the Haynes manual for 1999 thru 2006 and it calls for 60-66 for the V6, 48-54 for the E-85 fuel and 55-62psi for all others.
What should the fuel pressure be in a Dodge Ram?
Yeah, normal fuel pressure should be around 50-55 psi. Maybe a defective pump? My Jeep had similar symptoms a few years back. Wasn’t east to see or find, but there was a small crimp in the fuel line where it went through the firewall. I fellas, am I correct in thinking that the minimum fuel pressure is 47 psi?
What should the pressure be on a fuel pump?
On classic cars with mechanical style fuel pumps, however, the pressure is much lower—between four and six PSI. If you suspect that your fuel pump is not producing enough pressure, there are two tests you can perform. The first is a simple pressure output test.
What does 0 psi fuel pressure test mean?
CASE 2: You got 0 psi fuel pressure. This test result lets you know that the fuel pump is defective and is causing the engine to not start. Before you replace the fuel pump, make sure that the fuel pump relay and fuel pump fuse are supplying power to the fuel pump when the engine is being cranked.
Where is the fuel pump on a GM Truck?
As you’re already aware, the throttle body fuel injection system on your 1987 to 1995 4.3L, 5.0L, or 5.7L pickup (or SUV) uses a low pressure (12 PSI) electric fuel pump located in the gas tank. And although GM did not include a Schrader valve to which you could connect a fuel pressure gauge, it can be tested with one to find out if the fuel
How to test the fuel pump in a V8?
These are the test steps: 1 Connect your fuel pressure tester to the Schrader valve. 2 Have your helper crank the engine while you observe the needle on the fuel pressure tester gauge. 3 The fuel pressure tester should give you a reading between 55 to 62 PSI.