One the the most common issues with any kind of vehicle, consisting of the Chevy Blazer, is as soon as it has actually fuel press regulator issues. A bad fuel pressure regulator can reason all species of problems.

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Most contemporary vehicles have the fuel push regulator mounted on the fuel rail. Some may be in the fuel pump assembly, yet this is hardly ever the case (although the is happening much more and more).


Chevy Blazer Fuel press Regulator Cost

If girlfriend think that you may need a fuel press regulator for your Chevy Blazer, castle are fairly affordable.

Fuel press regulators in general are easy to acquire to, although the an obstacle reaching them will differ by model year and the engine equipped. Before purchasing a new fuel push regulator, it’s a great idea come check and also make certain that it’s the part that you have to fix your Blazer. The symptoms of a bad fuel push regulator are similar to a poor fuel pump or bad fuel filter.

What go a Fuel push Regulator Do?

Your Blazer’s fuel press regulator controls the push of the fuel prior to it hits the fuel rail. Keeping consistent pressure come the fuel injection mechanism is crucial to the effective operation of any engine. It correctly controls the amount of fuel start the fuel injectors, intake, and combustion chamber.

Think the it choose a damn with a flow of fuel behind it. It additionally saves wear and also tear ~ above the injectors themselves. Too lot fuel pressure can destroy injectors.

Bad Fuel push Regulator Symptoms: Chevy Blazer

A poor fuel press regulator deserve to put your Chevy Blazer the end of commission. Below are a couple of of the most usual symptoms of a bad fuel push regulator:

A typical Fuel press Regulator Misfire– once the fuel press regulator fails, it can enable too much or too little fuel right into the engine. One of two people way, this wreaks destruction on the wait fuel mixture. Without a appropriate air/fuel mixture, the engine might run rough, misfire, hesitate, or failure to start at all. Leaking Fuel– If any of the seals in the fuel pressure regulator fail, or if the diaphragm fails, raw fuel will begin to leak. Next to the loss of power and also fuel economic climate that this have the right to cause, it’s a huge safety hazard. Many of the time, when there is a fuel leak, it’ll be accompanied through the spicy smell the gasoline. Black Exhaust Smoke – one of the most usual symptoms that a auto that has actually a negative fuel press regulator is that it’ll operation rich. The tell tale authorize of a automobile that is running too rich is the it’ll have actually black exhaust smoke. Decreased Fuel Economy– through the engine not running in ~ optimal efficiency (and possibly dumping life fuel) fuel economy will certainly suffer.


If you have actually most of the symptoms listed above, you may have a bad fuel pressure regulator. The next step is going come be testing it to watch if that holds pressure, and also if so, the best amount that pressure.

Here’s a really an excellent writeup native AxleAddict on exactly how come go around testing her Blazer’s fuel pressure regulator.

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