What was the fuel pressure requirement in 1989?
Some 1988 through 1989 vehicles with the 3.1 liter engine have a fuel pressure requirement of 34 to 47 PSI (pounds per square inch). This includes A and F body vehicles. The F body vehicles continued this fuel pressure requirement through 1992. 1989 W body vehicles have a fuel pressure requirement of 40 to 47 PSI.
What does 0 psi mean on fuel pump?
The fuel pressure gauge will register 0 PSI. OK, let’s analyze your test results: CASE 1: If the fuel pressure gauge registered 0 PSI. This confirms that the cause of your 3.8L equipped GM car or mini-van is caused by a lack of fuel.
What’s the fuel pressure on a GM 2.4L?
Rough running is usually the result of worn spark plugs and wires. Some GM engines do run poorly or won’t even start when fuel pressure is just a few pounds low, but that applies more to truck engines. Fuel pressure for the 2.4L is 52 – 58 pounds. Fuel pressure for the 3.4L is 48 – 55 pounds.
What should the fuel pressure be for a 3.1 liter engine?
The fuel pressure requirement for the proper operation of a 3.1 liter engine depends on the model year and your fuel injection system. The 3.1 liter engine was used from 1998 through 2002 on a wide range of vehicles. Some 1988 through 1989 vehicles with the 3.1 liter engine have a fuel pressure requirement of 34 to 47 PSI (pounds per square inch).
How to check fuel pressure on a Pontiac Grand?
Attach the vacuum hose to the port on the fuel pressure regulator. Plug in the electrical connection for the fuel pump near the fuel tank on 2.4-liter models. On 2.2-liter and V-6 models, replace the cap on the end of the fuel rail.
The fuel pressure gauge will register 0 PSI. OK, let’s analyze your test results: CASE 1: If the fuel pressure gauge registered 0 PSI. This confirms that the cause of your 3.8L equipped GM car or mini-van is caused by a lack of fuel.
Where is the pressure regulator on a Pontiac Grand?
Disconnect the fuel return line from the pressure regulator, located at the end of the fuel rail using a wrench. Pull the vacuum hose from the port on the pressure regulator. Unscrew the fasteners attaching the fuel pressure regulator to the fuel rail using a Torx screwdriver. Pull the regulator from the fuel rail.
Where is the fuel pressure gauge on a Chrysler 2L?
Connect the fuel pressure gauge to the Schrader valve on the fuel rail. When ready, ask your helper to crank the engine while you observe the fuel pressure tester’s gauge. 1.) The fuel pressure gauge will register 35 PSI, or