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Dodge Ram Cummins 5.9 Fuel Pressure Sensor Replacement
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By Dorman Products
Cost-effective replacement intake manifold for Ford Coyote 5.0s | Dorman OE FIX 615-916
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By Mighty Auto Parts
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link hidden, please login to view appeared first on link hidden, please login to view. The 2013 Ford F150 equipped with a 3.5L EcoBoost engine was running perfectly. With the exception of a drop in fuel economy, there was no indication of a problem until the Check Engine light in the dash illuminated. A system scan revealed P2098 code stored in memory, which represents Post Catalyst Fuel Trim System Too […]
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By Counterman
On modern vehicles, overheating is a rare occurrence thanks to high-quality hoses, thermostats and better engine management. Unfortunately, the weak point is still the coolant. Whether it’s a 100,000-mile or 150,000-mile coolant, eventually it will break down and lose the ability to protect the components with which it comes into contact.
Coolant at 100,000 miles may look the same as coolant with zero miles, as the real difference between good and bad coolant can’t be seen with the naked eye; it is in the chemistry and based on mileage.
Coolant contains additives called buffers that keep it at a neutral pH but these buffers are meant to last forever. When these chemicals become depleted, the pH can’t be controlled. It rises dramatically in a short period of time the moment the buffers are fully depleted. This is why replacing the coolant at the recommended interval is critical.
Coolant has two specifications that can be used to justify replacement — the condition of the additive package and the freezing point.
The additive package is the secret sauce for a coolant. Its main function is to control corrosion. Other components of the additive help with heat transfer and cavitation reduction. Some additive packages use seal conditioners to extend the life of the gaskets and plastic carriers.
The freezing point is measured by the overall specific gravity of the coolant, which has a direct relationship to the coolant/water mixture. This test can help spot coolant that has been compromised by the owner topping off with water. This measurement works well on systems that do not have pressurized reservoirs.
The strength or freezing point of coolant can be measured with a simple hydrometer. This device uses a calibrated float or plastic balls (not as accurate) to show the specific gravity of the coolant. This, in turn, shows how much freezing/boiling protection the coolant offers. You must remember to compensate for temperature because the specific gravity (density) of the coolant is lower when the coolant is hot.
The more professional tool for this purpose is an optical refractometer because it is very accurate and automatically compensates for temperature. Be aware: these are not simple, inexpensive tools. A refractometer can cost up to $300 or more because of the precision optics in its lens. Ethylene glycol (EG) and polyethylene glycol (PG) antifreeze have slightly different densities, so you have to use a hydrometer or refractometer with the appropriate scale (or one with a dual scale) for accurate test results.
Color-coded chemical test strips that are dipped into the coolant can be used to quickly and easily reveal the condition of the coolant. These strips of coated capillary paper react to the presence of certain dissolved minerals in the coolant and change color to give a good, marginal or bad indication of the coolant’s pH condition. Some test strips also show the concentration of antifreeze in the coolant.
The added benefit of test strips is that the results can be shared with the owner by attaching the used strip to the inspection form.
But, mileage is the gold standard for any coolant replacement recommendation. Engineers and chemists spend a lot of time formulating the coolant to match the engine and interval.
If you are performing a water pump, heater core or hose repair, recommend a full coolant flush. Just topping off the coolant can lead to a mixed bag when measuring the pH and freezing point. Also, check the specific gravity before a repair. Many customers know how to top off their coolant with water that could dilute the coolant concentration.
Selling any fluid maintenance service is difficult these days. But, if you document and educate customers on the importance of coolant, it becomes more than just an “add on” service.
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By NAPA
You might know how to check the fuel level, but do you know how to check fuel pressure? There’s a handy gauge on the dashboard that tells you how much fuel is in the gas tank, but if that fuel isn’t reaching the engine under enough pressure, a mechanical failure could be brewing. Let’s take a look at the process necessary to check fuel pressure.
What Does Low Fuel Pressure Mean? link hidden, please login to view
If fuel can’t reach the injector with enough force to atomize the fuel, then the engine won’t run right. More often than not low fuel pressure means a
link hidden, please login to view. A bad fuel pump might limp along for a little while, but eventually it won’t build enough pressure to feed the engine. How To Check Fuel Pressure Using A Fuel Pressure Gauge
To check fuel pressure, you will need a
link hidden, please login to view (also called a fuel system pressure tester). Make sure you are working in a well-ventilated area, as some fuel fumes may escape during the procedure. Turn off the engine. Open the hood. Locate the fuel rail. You may need to remove the engine cover for access. Locate the Schrader valve on the fuel rail. This is where the fuel pressure will be tested. Remove the cap from the fuel rail Schrader valve. Attach the fuel pressure tester, making sure the connection is tight. If the fuel pressure tester has a pressure relief hose, route it to a proper container to capture the released fuel. A link hidden, please login to view makes a perfect catch container, and the fuel can then be used later. Turn the ignition switch to “on,” but do not start the engine. The fuel pump will pressurize the fuel system, and you will be able to read the fuel pressure gauge. To test the fuel pressure with the engine running, leave the fuel pressure gauge attached, but place it where it will not contact any of the rotating engine accessories (fan, fan belt, pulleys, etc), and ensure the gauge will not fall due to engine vibration. You may wish to have an assistant hold the fuel pressure gauge.
Start the engine, and observe the fuel pressure gauge. Refer to a link hidden, please login to view for fuel pressure specifications. Once you have taken the fuel pressure reading, shut off the engine. With the pressure relief hose secured to a container, release the fuel pressure from the gauge. Properly dispose of the released fuel or reuse it. Disconnect the fuel pressure gauge from the Schrader valve on the fuel rail. Wipe up any fuel that has spilled, and dry the spill area thoroughly. Place the cap back on the Schrader valve. Replace the engine cover, if it was removed. Close the hood. How To Check Fuel Pressure Using A Diagnostic Tool
Wondering how to check fuel pressure without gauge access? Checking fuel pressure using an OBD diagnostic tool can perform this vehicle test. The exact procedure will vary based on the manufacturer. Refer to the user manual for instructions on how to view live data using the OBD tool.
In the case of the
link hidden, please login to view, start at the Diagnostic Menu and select the “View Data” option. The tool will scan for available parameter identifications (PID) that can be read. Once the tool has read all the PIDs, it will prompt the user to “Select Data to View.” Choose “Entire Data List” for a readout of all the discovered PIDs. In that list should be a line called “FUEL PRES” or a similar term. That diagnostic reading is the current fuel pressure. For those who are more tech savvy, there are smartphone apps that can connect directly to a third-party
link hidden, please login to view. These apps display the real-time information flowing through the onboard diagnostic system. Information like engine temperature, transmission fluid temperature, fuel pressure and oil pressure are commonly available, but will depend on the app. Monitoring Fuel Pressure
If you are the kind of driver who prefers to keep a constant eye on what’s going on under the hood, consider installing a
link hidden, please login to view. There are a wide variety of gauge styles to match your interior, while also delivering needed information. You can keep an eye on fuel pressure, oil pressure, oil temperature and more with an link hidden, please login to view. If you have a performance vehicle or work vehicle, keeping an eye on engine vitals can help stop a problem before it starts. You can use a mechanical gauge attached directly to the fuel system under the hood, or a digital gauge in the cabin that uses a sending unit.
Frequently Asked Questions:
What Are The Symptoms Of Low Fuel Pressure?
Common low fuel pressure symptoms:
Vehicle will not start or keeps stalling Long engine cranking time Hesitation when accelerating Engine is low on power Check engine light is one (engine lean, misfire OBD-II codes stored) What Are Symptoms Of A Bad Fuel Pressure Regulator?
If the fuel pressure readings are erratic or not within the specification, those may be symptoms of a bad
link hidden, please login to view. What Are Symptoms Of A Bad Fuel Pressure Sensor?
If the fuel pressure sensor has gone bad, you may have an illuminated check engine light, trouble getting the engine to start due to low fuel pressure, or reduced engine power.
If your engine isn’t running right or the check engine light is on, then a fuel pressure check can be a good starting point for diagnosis. As you can see, the process is pretty straightforward with the right diagnostic tool. Your
link hidden, please login to view and NAPAonline carry a wide variety of link hidden, please login to view to fit your needs. Don’t feel like leaving the house or don’t have the time? Order on NAPAonline to get
link hidden, please login to view on 160,000+ products. However you choose to shop, make sure to take advantage of link hidden, please login to view to receive 1 Point for every dollar you spend. When you earn 100 Points, you automatically get $5 off your next purchase! Don’t feel like testing fuel pressure yourself or just don’t have time? You can also swing by your local
link hidden, please login to view for a fuel pressure check. Their ASE Certified technicians have the right tools and training to diagnose any fuel related issues that your car, truck or SUV experience. Photo courtesy of
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