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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
Fuel regulator 0 psi.
If the motor is running, there can't be 0 psi. I'm not sure how you are reading fuel pressure from the regulator. This is not a normal diagnostic procedure. Maybe you are referring to a fuel pressure gauge. And again,...
Question
My truck cranks but is slow to start. It idles rough and stalls out. I've already replaced my fuel pump - what could it be? 1997 Dodge Ram 1500
Hello - I believe your problem is low fuel pressure, at least during the cranking phase. If the fuel pump check valve is not maintaining pressure in the fuel system while the engine is turned off, cranking time is long...
Question
Bad fuel pump or another issue? 1992 GMC C1500
Hello - I agree with you that this is likely a fuel supply issue. There are several possibilities as the source of the problem fuel pump or fuel pump relay (runs, but gets hot and fails), fuel filter clogged, dirty...
Question
Fuel supply related to engine misfire?
Engine misfires can be caused by a list of problems, but there are a few suspects that occur more than others. Generally, misfires are caused by either a spark or fuel issue or in cases, a combination of both. Spark...
Question
Fuel Pump Malfunction
In October 2016, BMW announced a recall covering fuel pumps for certain models produced during model years 2007-2012. Your vehicle appears to be outside the scope of this recall but nevertheless it would be a good due diligence to contact...
Question
Trouble starting unless I prime the fuel pump, turn off key and then prime again and start it.
The most common cause of the fuel system not holding pressure up to the injectors is the fuel pump inside the fuel tank. The fuel pump has a check valve built into it that is supposed to keep pressure to...
Question
Is it a fuel pump issue?
It's possible that a failing fuel pump, or a clogged fuel filter or fuel injectors for that matter, can cause stalling at idle but there are other common causes such as vacuum leaks, EGR system faults, sensor faults such as...
Question
hard to start,spits,sputters when you give it gas.once engine warms up symptoms gets better, but still cant give full pedal (bogs) 2002 GMC Sierra 1500
Hi - I would put a fuel pressure gauge on the system, checking for low pressure. This could be a low fuel pressure problem - due to a malfunctioning fuel pressure regulator, weak fuel pump or clogged fuel filter or...
Question
No fuel pressure when starting car.
This is 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 pressure...
Question
Truck starts to hesitate under load
This may be related to low fuel pressure or potentially a failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to...
Question
Loss of power once I hit 70-80 mph
Hi there. Check the fuel pump and make sure that its working. Check the fuel pressure on the fuel rail and see if there is a loss of pressure. Its common for the fuel pump in the Silverado 1500 models...
Question
5.7l cuts out when you throttle the engine from a stop. Gets going sometime then hesitates. When it gets to 50 mph it runs fine.
Hi there. Check the IAC (idle air control valve) and see if its functioning. If the engine is having an issue with stumbling, the IAC could be causing the engine to stall out. If the IAC is working properly, then...
Question
Fuel problem
Hello. A fuel system leak such as the one you describe can be caused by a few different things. The injectors are pulsed on and off by the engine computer. If you have already replaced it then it may be...
Question
My truck will turn over but wont start. Its making a clicking noise and then shuts off, what should i do to fix it?
Hi there. Check the fuel pump relay and see if the relay has failed. If the relay is working fine, then check the fuel pump and see if its coming on when you turn on the key. If you are...
Question
Car is stalling.
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
BMW 2010 x3 fuel filter
Poor mileage has many very common causes other than dirty fuel injectors. However, if a diagnostic (that is, actual tests) suggests that fuel injectors are dirty the only way they can be cleaned is by removing them from the engine...
Question
My car idles up and down after it warms up--rpms jumping up and down about every second between, about, 1600 and 1900.
This may indicate a faulty fuel pressure regulator or dirty fuel injectors causing a fluctuation in the fuel supplied to the motor and thereby causing the RPM's to fluctuate. As you know, when you turn the key to on, the...
Question
no fuel
I would start by checking power to the fuel pump relay first as this is often times the easiest and least expensive way to determine the cause. If there is power to the relay, then this may suggest that the...
Question
Car is struggling to go past 40 MPH.
Hi there. If your vehicle is having trouble going past 40 mph, then check the mass air flow sensor (MAF) and the fuel pressure regular. Both of these items could be restricting the engine and causing it to have a...
Question
Fuel pressure problem
This may be a sign of a faulty 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 pressure in order...

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