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Fuel pressure specs - 1995 Dodge Viper

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How to test fuel pressuer on a mazda 929


Find your test valve on your fuel rail (under the hood) and you will need a fuel pressure regulator gauge to check the pressure. You can also look up online the specs for the pressure recommended. You did not provide your size engine so i could not look up specs for the pressure. Hope this helps.

Sep 17, 2016 | Mazda 929 Cars & Trucks

1 Answer

WHAT ARE THE SPECS FOR FUEL PRESSURE, HOW MANY P.S.I SHOULD I HAVE IN FUEL LINE? 89 NISSAN P/U 2.4L


Generally speaking, modern gas fuel injected systems average 30-40+ psi. Older carburator engines only required 3-7 psi. High pressure in the injector helps atomize the fuel for better air-fuel mix. Check maufacturers specs and use proper tools to measure fuel pressure. Eye protection recommended.



Apr 24, 2016 | Cars & Trucks

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I just changed the fuel pump in a 1990 firebird. There is still no fuel to the fuel injector


Check fuel pressure at the rail. If it's not within specs, check the pressure relief valve on the fuel rail - the one that feeds fuel back to the tank.

If the pressure IS within specs, it's time to start seriously suspecting the car's computer.

Aug 04, 2014 | Cars & Trucks

2 Answers

How to check fuel pressure


With a fuel pressure gauge. If there is a test port called a schraeder valve on the fuel rail on top of the engine, it's easy. If no test port, you have to tee off the fuel line somewhere convenient (like right after the fuel filter) and hook your gauge up there. Hook the gauge up, make sure of no leaking, turn key to on, and read the pressure (it will read the same pressure in the line as at the fuel rail). Check pressure with key on, and then with engine running- if at the specs for your vehicle, it's good. If pressure is below specs, pinch off or pull off the vacuum line to the fuel pressure regulator, and see if pressure raises. If it does, try another pressure regulator. If no change, check the fuel return line for restrictions, check or replace the fuel filter, or suspect a poor performing fuel pump. On MPFI systems the pressure should be about 50 psi, but find the specs for your vehicle.

Nov 03, 2012 | 2001 Ford Excursion

1 Answer

How to hind out if fuel pump is working


easiest way is to use a fuel pressure gauge that will connect to the fuel rail and read the pressure coming from the pump. You will need to know the spec pressure for your car. Follow the instructions for connecting a fuel pressure gauge to the fuel rail. Careful to clean up any expelled fuel on the engine. Turn the key to the on position and wait for the pump to build pressure, normally about 2 seconds, and read the gauge. Compare the gauge reading to the specs and determine if the pump is delivering the required pressure. You can rent a fuel pressure gauge from many automotive parts stores if you don't have one.

Sep 25, 2012 | Daewoo Nubira Cars & Trucks

1 Answer

What is the fuel pressure spec for a 2004 tahoe with 5.3 flex fuel. I have low power. Changed fuel filter, air filter and oil and still no power. Checked fuel pressure and had about 43 psi. not sure what...


I would change the fuel pressure regulator first, if no change in pressure the fuel pump is on the way out.I have a 01 silverado 4.8 and my fuel pressure is between 55and60 psi.

Feb 22, 2010 | 2003 Chevrolet Tahoe

2 Answers

Fuel pump pressure specs


The fuel pump specs are 14 psi. and 20 gallons an hour.

Sep 08, 2009 | 1991 Chevrolet S-10 Blazer

1 Answer

Have spark &60psi fuel.


Probably a bad fuel pump,Fuel pressure specs are 60 to 66 psi fuel pressure.You are at the lower part of the specs the engine wont fire.

Aug 03, 2009 | 1996 Chevrolet C/K 2500

1 Answer

Need fuel pressure info


fuel pressure specs are as follows:
5.0 &5.7L 60-66 psi
7.4L 55-62 psi

Jul 07, 2009 | 2000 Chevrolet Silverado 1500

1 Answer

Wont start it turns over but wont stay started


check the fuel pressure....there is a valve near the fuel pressure regulator that u can connect a fuel pressure guage to.under the hood on the right in the area of the brake master cylinder( right upper corner...( a line with a threaded valve)..check the reading and make sure they are in specs, i dont know the specs off hand but a service manual will help..if the pressure isnt in spec, replace the fuel pressure regulator..

Apr 07, 2009 | 1995 Honda Passport

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