How To Test Fuel Pressure Regulator On 5 3
Replacing the defective fuel pressure regulator for your 5 3 liter vortec engine is a straightforward task when using the proper tools and information. A fuel pressure regulator commonly fails in one of two ways.
Chevrolet Silverado 1999 2006 How To Replace Fuel Pressure
Fuel pressure key on engine off 385 425 kpa 55 62 psi not sure what this means in real life.
How to test fuel pressure regulator on 5 3. Thank you for watching in this we show how to test the fuel pump pressure and regulator. Fuel pump install and pressure test 2003 suburban 1500 flex 5 3 pt 1 duration. When it fails to hold pressure it provides too little fuel to the engine causing a lean mixture low pressure condition.
Replacing the vacuum line an easy way to test for an fpr leak in the vacuum side is to replace the vacuum line going into the fpr with a length of clear tubing. Average fuel pressure can be anywhere from 45 psi to 55 psi but consult with your vehicle service manual for the proper fuel pressure range before performing this test. When the fpr gets stuck and builds up more pressure then it should it ll cause the.
Fuel pressure regulator replacement 2000 2006 suburban 5300 5 3l v8 duration. How to check fuel pressure on a general motors truck and what easy checks you can do to diagnose a fuel pressure regulator problem check out my other videos. My 99 5 7l was always a little below the low end of the fuel pressure specs even with a new gm pump still ran fine.
A leak can appear in the vacuum port of the fpr mechanic speak for fuel pressure regulator and cause it to lose fuel and pressure through the vacuum hose. Finding the fuel pressure regulator is not that difficult. Follow the fuel line to the throttle body or carburetor.
Hey guys i get questions all the time about fuel pressure issues on gm trucks this is a video showing how to test fuel pressure on the gm trucks including the gmc sierra chevrolet silverado gmc. Loosen the vehicles fuel filler cap to help depressurize the fuel system. According to alldatadiy for my 2006 denali with the 5 3.
Step 1 locating the fuel pressure regulator. If you learn how to test a fuel pressure regulator fpr you may save some money on repairs and get your vehicle going sooner.
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