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fuel pressure

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How to Replace a Fuel Pressure Regulator
Fuel pressure regulators helps the fuel injector let out the right amount of fuel and maintains constant fuel pressure for optimal fuel usage.

Related questions

Question
is the fuel pressure regulator an engine job? or is nbd?
The fuel pressure regulator is part of the engine's fuel supply system. The regulator is completely separate from any "mechanical" component of the engine. The purpose of this regulator is simply to maintain a specified pressure on the fuel supplied...
Question
Fuel pressure problem
This may be related to many different possibilities. I would recommend with first starting with checking the fuel pressure to be sure the pump is producing the proper fuel pressure. In addition to the fuel pump, there is also something...
Question
Fuel pressure regulator needs replaced.
Hi there. To remove the fuel rail, simply remove the bolts that secure the rail onto the intake manifold and all of the brackets off the rail. Take a pry bar and gently pry up on the fuel rail to...
Question
Cranks but does not start.
Hi there. Check the battery on the vehicle and make sure that it has enough voltage to start the vehicle. If the vehicle is cranking up and it sounds as it is about to start but it does not start,...
Question
My car will not go over 20 mph.
Hi there. Check the fuel pressure regulator and make sure that its working and plugged in. Put a fuel pressure tester on the fuel rail and make sure that there is good fuel pressure of 45 to 65 psi. If...
Question
Engine cuts out/off at idle, and cuts out sometimes at steady state (60-70 mph).
Hi there. Check the fuel system for any air in the fuel rail. residual air in the fuel system will cause the engine to randomly cut off. If the fuel pressure is good and there is no air in the...
Question
Sudden loss of fuel.
Hi There Brian, It sounds like your Blazer has a fuel supply issue that may have suddenly failed. If this is the case, the backfire is a result of the motor leaning out as it continues to run and then...
Question
Why doesn't car start after running out of gas girlfriend ran gas out of car now won't start plenty of gas in tank doesn't sound l
Fuel pumps rely on liquid gasoline for cooling. Consequently, it is recommended to keep the fuel tank at least 1/4 full to prevent the fuel pump from overheating. If the pump is run to the point of being dry, the...
Question
What can possibly be the problem and how much am I looking at?
It's always best to use OEM parts, in this case an AC Delco or GM fuel pump. Aftermarket parts introduce uncertainties, and often outright problems, in terms of fit and service life. If the fuel pump is getting full battery...
Question
No fuel to cylinders
Hi There, It sounds like you may have a fuel pressure or injector problem resulting from dirty or clogged fuel injectors. In the case of low fuel pressure, the system may not be primed well enough to get the proper...
Question
Complete Random Intermittent Stalling
Hi There, This may be related to low fuel pressure, faulty or dirty fuel injectors, a faulty or dirty idle air control valve (this relays information about air intake to the computer which makes fuel adjustments), or potentially a faulty...
Question
Bad fuel regulator
You can drive it with the vacuum line off of the pressure regulator if it helps your engine run better. I thing the problem is not the regulator but a problem with clogged injectors or low fuel pressure from a...
Question
Not Starting
This may be a sign of a faulty fuel pump or fuel pressure regulator. As you know, when you turn the key to on, the fuel pump is activated and the fuel system is primed with fuel at a specific...
Question
Fuel pump
Immediately upon turning the key to the "on" position (NOT start position), you should clearly hear the fuel pump in the fuel tank momentarily "whirrr" as the pump pressurizes the fuel system. If you don't hear the pump "whirrr" momentarily,...
Question
Car starts fine, sputters even when giving it gas, shakes and dies, sometimes there's a clanging in the engine
Hi there. Sounds like the engine is not getting enough fuel as if the fuel pump is not working. The engine will start normally and then die off when you give it gas. Check the fuel pressure when the engine...
Question
High fuel pressure. 2000 Chevrolet Blazer
Hi there - the fuel pressure regulator on your truck has a vacuum-controlled adjustment which accounts for engine load. It's possible that the vacuum source to the fuel pressure regulator is not functioning correctly, allowing fuel pressure to exceed the...
Question
Where to troubleshoot fuel issue?
Hello, thank you for writing in. The issue could be any of the components you mentioned. There are several tests you can do, and you will want to pick the tests to perform first that are easiest for you to...
Question
Cars is Cranking but Not starting!
Hi there. If the fuel pump is humming, then it is working. Most likely what happened is the junk in the fuel tank got picked up by the fuel pump and plugged up the fuel system. I recommend putting in...
Question
I failed a smog check with the codes PO171 & PO174, saying the system is too lean on the bank 1 & 2. Can you tell me what the problem is?
Hi there. When the two codes P0171 and P0174 come up for a lean system on both banks of your engine, then either all of the fuel injectors are not working properly or your fuel pressure has dropped. Check the...
Question
car won't start and no fuel pressure at rail but great at the filter
If the pressure drop exists "through" the fuel filter, then the fuel filter should be replaced. If the pressure at the exit side of the fuel filter is normal and yet the pressure on the fuel rail is essentially zero,...

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