How to check fuel pressure regulator on a Pontiac Grand Am?
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. “Haynes Repair Manual: Pontiac Grand Am 1999 thru 2004”; John H. Haynes and Jay Storer; 2005
Where is the fuel pump on a Pontiac Grand Am?
Check in the engine compartment fuse box, it should be near the battery under the hood. The cover should be pretty easy to remove. The fuel pump should be connected through a fuse in slot 48. If that fuse looks good, then you may want to check the fuel pump relay (also inside the engine compartment fuse box).
What kind of car is the Pontiac Grand Am?
The Pontiac Grand Am is a mid-size size (and later compact) car produced by Pontiac. The 1999-2005 generation is the final generation of the Pontiac Grand Am. 2003 Grand Am will not start.
Where is the fuel tank cap on a Pontiac Grand?
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. Eric Grosso has been a journalist since 2002, working as a staff reporter covering government events, school districts, sporting events and entertainment acts.
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. “Haynes Repair Manual: Pontiac Grand Am 1999 thru 2004”; John H. Haynes and Jay Storer; 2005
Check in the engine compartment fuse box, it should be near the battery under the hood. The cover should be pretty easy to remove. The fuel pump should be connected through a fuse in slot 48. If that fuse looks good, then you may want to check the fuel pump relay (also inside the engine compartment fuse box).
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.
The Pontiac Grand Am is a mid-size size (and later compact) car produced by Pontiac. The 1999-2005 generation is the final generation of the Pontiac Grand Am. 2003 Grand Am will not start.
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. Eric Grosso has been a journalist since 2002, working as a staff reporter covering government events, school districts, sporting events and entertainment acts.
How do you test a GM fuel pump?
GM has made it super easy for you and me to test the fuel pump (with a fuel pressure gauge), since they have installed a fitting (called the Schrader valve) on the fuel pressure regulator to which you and I can connect the fuel pressure gauge to (see photo above).
Why is my GM 3.8L fuel pump not working?
CASE 2: If the fuel pressure gauge registered 35 PSI. This fuel pressure gauge result lets you know that the fuel pump is working and delivering enough fuel to the fuel injectors. The reason your 3.8L GM vehicle is not starting is due to another reason.
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.
GM has made it super easy for you and me to test the fuel pump (with a fuel pressure gauge), since they have installed a fitting (called the Schrader valve) on the fuel pressure regulator to which you and I can connect the fuel pressure gauge to (see photo above).
Why is my GM 3.1L fuel pump not working?
CASE 2: If the fuel pressure gauge registered 35 PSI. This fuel pressure gauge result lets you know that the fuel pump is working and delivering enough fuel to the fuel injectors. The reason your 3.1L or 3.4L GM vehicle is not starting is due to another reason.
How much does a GM fuel pump cost?
As mentioned earlier (in fuel pump test 2), in all of the GM 3.1L and 3.4L V6 equipped vehicles GM was kind enough to put a Schrader valve on the fuel injector rail where you can tap into the fuel system and check its performance. A fuel pressure gauge can cost you as little as $40 (US) or as much as $200 (US).
How do you change the fuel pressure regulator?
Coat the new O-ring with motor oil and slide it onto the fitting on the regulator. Remove the old O-ring from the fuel return line with a small flat-head screwdriver. Coat the new O-ring and place it on the fitting at the end of the fuel return line. Attach the fuel return line to the fuel pressure regulator with a wrench.
How do you relieve the fuel system pressure?
Relieve the fuel system pressure. On V-6 and 2.2-liter models, remove the port cap on the end of the fuel rail. Place a rag at the end of the rail and press the small port with a small flat-head screwdriver to release the pressure.
Coat the new O-ring with motor oil and slide it onto the fitting on the regulator. Remove the old O-ring from the fuel return line with a small flat-head screwdriver. Coat the new O-ring and place it on the fitting at the end of the fuel return line. Attach the fuel return line to the fuel pressure regulator with a wrench.
Relieve the fuel system pressure. On V-6 and 2.2-liter models, remove the port cap on the end of the fuel rail. Place a rag at the end of the rail and press the small port with a small flat-head screwdriver to release the pressure.
What causes the fuel pump to not start?
The fuel pump is running and delivering normal pressure to the engine But, with all that working your engine still will not start. So, the most likely cause, is that the fuel injectors are probably not opening. The (PCM) uses the trigger signal from the crankshaft position sensor; and/or camshaft position sensor to pulse the injectors.
Can a bad fuel pressure regulator cause an engine to not start?
It would be wise to check the batteries before considering a failure in the fuel pressure regulator. It is also possible that the engine will not start because of issues in the alternator. There are other potential causes why an engine does not start. One of these is a faulty fuel pressure regulator.
Can a fuel pressure regulator leak into the vacuum hose?
Presence of Fuel in the Car’s Vacuum Hose. One of the fuel pressure regulator symptoms that one should never ignore is the presence of fuel in the vehicle’s vacuum hose. This is an automotive component that connects to one side of the fuel pressure regulator. If there is a problem with the regulator, fuel can leak into the vacuum hose.
Can a bad fuel pressure regulator cause a fuel leak?
As seals crack, fuel tends to leak. Problems with the fuel pressure regulator are not the only reasons why you may have a leak in the fuel delivery system. It can be because of corrosion, the presence of contaminants, and problems in the fuel filter. Sometimes, faulty electrical connections can also lead to fuel leaks.
Why is the starter not turning on my Pontiac Grand Am?
If you can hear the starter motor turning but the engine isn’t turning (look at the belt) then the starter may not be engaging (in your car I believe this means that you must replace the whole starter). You can remove and test your starter to confirm whether or not the solenoid is engaging the starter.
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.
What should the PSI be on a fuel pump?
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. Is The Anti-Theft System Causing The No Start Condition?
What should the fuel pressure be when the engine is off?
Your fuel pressure gauge should register between 53-59 PSI (if the fuel pump is working correctly). NOTE: The fuel pressure specification of 53-59 PSI is with the key on but engine off (KOEO).
Can a fuel pump regulator be replaced on a 3.1L?
If this is an older 3.1L, then yes, replace the fuel pressure regulator. There was a design change years ago for making noise. The fuel pressure regulator is a vacuum operated diaphragm relief valve with fuel pump pressure on one side and regulator spring pressure and intake manifold vacuum on the other side.
Can a bad fuel pressure regulator cause poor acceleration?
A bad fuel pressure regulator can also lead to poor acceleration. This is one of those symptoms that many vehicle owners will first notice from their car. As they step on the gas pedal, the car does not accelerate in a more normal manner. It is sluggish.
What kind of parts are in a Pontiac Grand Am?
Among thousands of reliable repair parts you can find air intake parts, fuel delivery parts, exhaust systems, engine cooling components, ignition parts, electrical parts, engine parts, transmission parts, steering parts, suspension parts, brakes, and many more. With an extensive range of products, you can easily find and order the right component.
When did the Pontiac Grand Am Come Out?
The Pontiac Grand Am is a mid-size car and later a compact vehicle that was manufactured in two body styles: a 2-door coupe and 4-door sedan. The Pontiac Grand Am debuted in 1972.
What are the symptoms of a bad fuel pressure regulator?
Another symptom that’s easy to detect is an unforeseen drop in mileage. Again, more fuel going to the engine means more fuel is wasted, making you fill more fuel and get less out of it. Low pressure may also cause the fuel to enter the oil tanks. You can find out if this is happening by sniffing the oil dipstick.