How I replace fuel filter

Motor have code P0172 And code P0175

My car has 121000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
The fuel filter for your car is in the fuel tank. If you want to replace it, you will need to replace the fuel pump. It isn’t regularly serviceable item anymore. As for the codes, the P0172 indicates there is a rich condition as detected by the bank 2 oxygen sensor. (O2) The list of possible causes for this is pretty long. The P0175 code is the same code for bank 1. What this tells me is it is a something that affects both banks. This includes the MAP (manifold absolute pressure) sensor, ECT (engine coolant temperature) sensor, fuel pressure regulator and a few others. These are what needs to be checked first.

This is an advanced diagnostic issue that will require a knowledgeable and experienced technician to figure this out. I recommend the following inspection to help you diagnose your vehicle’s Check Engine Light issue thoroughly so that correct repairs can be made.

Good luck!

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

Where is the fuel filter located on my Jeep? The fuel filter is always going to be found between the fuel tank and the engine. For most vehicles, the fuel filter is located inside the top of the fuel tank, right where it connects with the fuel line, although on some cars if might be elsewhere along the fuel line.
What the P0175 code means. P0175 indicates that the Engine Control Module (ECM) detects too much fuel and not enough oxygen in the air fuel ratio (AFR). This code will set when the ECM can not compensate for the amount of air or fuel required to return the air fuel ratio back to the set parameters.
The fuel filter is always going to be found between the fuel tank and the engine.
How to Fix P0172 and P0175. If the cooling temperature is good, the air filter is clean, the engine oil is not diluted and there are no other trouble codes, you may try cleaning the MAF sensor. Regardless if this is the issue, a good maintenance cleaning is always good, especially during air filter replacement.
When the P0172/P0175 code sets, the oxygen sensors are detecting too little oxygen in the exhaust and the control module is removing the maximum amount of fuel in its effort to maintain the proper air/fuel mixture.
All WJ models have two fuel filters, a strainer filter at the bottom of the fuel pump module inside the fuel tank and one exterior filter within the fuel pressure regulator. Both filters are designed for extended service. They do not require normal scheduled maintenance.
The fuel filter is positioned in the line leading from the gas tank to the engine and prevents containments from getting inside the engine, which could lead to a loss in performance and potential damage to the cylinder lining.
The fuel filter is positioned in the line leading from the gas tank to the engine and prevents containments from getting inside the engine, which could lead to a loss in performance and potential damage to the cylinder lining.
Your Jeep Cherokee will be happy to know that the search for the right Fuel Filter products you`ve been looking for is over! Advance Auto Parts has 12 different Fuel Filter for your vehicle, ready for shipping or in-store pick up. The best part is, our Jeep Cherokee Fuel Filter products start from as little as $4.99.
What Does P0172 and P0175 Code Mean? P0172 and P0175 are generic trouble codes that set when the engine`s air/fuel mixture becomes too rich for the Engine Control Module (ECM) to correct within its set operating range. A Rich mixture is a mixture that has too much fuel or not enough oxygen.
Common Reason: Code P0172 is often related to a vacuum leak.
Here are the different possible reasons why you`re getting the engine code P0172: Contaminated engine oil (too long since the last oil change) A leaking fuel injector. Excessive fuel pressure due to restriction along the fuel return line or a faulty fuel pressure regulator.
A P0172 may also happen due to a misfire. In such cases, you may also inspect some of the other important details. Exhaust – look for probable leaks in your exhaust, especially between the oxygen sensor and the cylinder head. Exhaust pressure pulses can create a partial vacuum, allowing air to pass through.
It`s vital that you buy the right fuel filter type for your make and model. Avoid any confusion by searching your registration plate in our car lookup tool, which will show you all the filters that will fit your vehicle.
Generally, you can expect your car`s manufacturer to recommend you to change the fuel filters once every 20,000 to 150,000 miles. Since this is a wide range, you`ll have to look at your owner`s manual for the most accurate fuel filter replacement intervals for your vehicle`s make and model.
Most vehicles have two fuel filters. There`s one in the fuel tank, often called a strainer (which costs $25 to $100) and one in the main fuel line (usually less than $20).
After the new fuel filter is installed, reconnect the negative terminal on your car battery, and reattach the fuel pump fuse/relay. Start your engine and let it run for a few minutes, checking to make sure that no fuel is leaking from your system.
The best part is, our Jeep Grand Cherokee Fuel Filter products start from as little as $19.99.
We typically see fuel filters replaced every 40,000 – 80,000 miles. Fuel filters should be replaced according to the service schedule, not just when a related problem occurs.
P0172 indicates that there is too much gasoline being detected in the exhaust gases exiting the combustion chamber this particular ratio was chosen because it was discovered to have the highest power output but lowest fuel consumption rate. Oxygen sensors are often replaced in error when this code is exhibited.
The reading is too lean (i.e. too much air or not enough fuel). P0171 is a bank one reading lean, P0172 is for bank two reading lean. If the PCM is saying is that the sensor cannot be sense, that would be a different code.
Is it safe to drive with a P0175 code? The issues that come with a P0175 code do not make driving impossible. However, your car will become inefficient and may develop more serious problems when you ignore the code for a long period.
You have a hard time starting car. If the problem is the fuel filter, and it isn`t changed soon, you may find that your vehicle won`t start at all. Misfire or rough idle. A dirty fuel filter could prevent the engine from getting enough fuel.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

To replace a fuel filter or not ? Vehicle had no fuel when bought; added fuel & it started, but should the filter be changed…
ANSWER : Hello, thank you for writing in. Your head is in the right place. While gas these days is held to some better standards, its very possible to collect debris in the tank over time. Considering the mileage on the vehicle, replacing the fuel filter is a great idea anyway, and you should definitely do so. They are quick and easy to do, but you need to be careful with the fuel lines. Also make sure you install the filter in the correct direction. If your fuel pump is original, then you may want to consider replacing it as well. Running a vehicle to empty can hurt the pump. It is also a great time to inspect the tank for debris. For more help replacing either fuel component, contact our service department to schedule an appointment.

Read Full Q/A … : How I replace fuel filter

I have a p0171 code on my ford ranger 2.5 and have replaced fuel filter maf sensor, iac sensor, fixed vacuum leaks, replaced fuel
ANSWER : Hello there. You might to read this article about the P0171 OBD-II trouble code; as it will give you ideas on causes and possible solutions.

Read Full Q/A … : How I replace fuel filter

Replaced fuel pump. Car won’t start. 2002 Infinity I35
ANSWER : Hi there – the metal component you describe is a fuel check valve on the fuel return line. Its function is to maintain a small amount of pressure in the fuel system so that starting does not require the fuel pump to run very long before the engine will start. Having replaced the fuel pump and fuel filter, I would check fuel pressure while the car is running. This is to check the fuel pump relay for burned contacts that won’t support full electrical current to the pump, and for proper fuel pressure – a malfunctioning fuel pressure regulator could also restrict power and higher speeds if pressure is too low. I would recommend an inspection of the fuel system by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

Read Full Q/A … : How I replace fuel filter

I got a 2001 toyota camry. My mechanic was replacing my fuel filter and he broke it where the top hose meets the fuel filter. What
ANSWER : Hi there. Are the gaskets missing, or one of them missing? A missing line gasket for the fuel line at the top of the filter can allow fuel to leak past the fitting bolt and spray dangerously on hot components. Is the leak coming from the line itself or around the bolt that attaches the line to the filter? If the line is leaking it has to be replaced, if the filter is leaking it has to be replaced, and if the leak is coming from around where the line and bolt meet then the gasket is probably missing. If the gaskets are missing or deformed from overtightening they need to be replaced. You may need to contact the dealer to get these gaskets. I suggest having a qualified technician perform an inspection to safely and accurately determine what is needed and avoid replacing unnecessary parts. Your Mechanic has several available technicians that can assist you with a fuel leak inspection.

Read Full Q/A … : How I replace fuel filter

Car won’t start after sitting for 14 months
ANSWER : Hi there. Check the fuel pump to see if it is energizing, and check the fuel pump relay to see if it is clicking when you turn on the key. If the relay is not clicking, then remove the relay and check to see if there is any power with using a test light. If there is power, then swap the relay out with the horn relay and see if the relay clicks.

If the relay clicks, then the relay went out and needs to be replaced. If the relay still does not click, then check the ground circuit for continuity, which is the feed circuit to the fuel pump. If there is no continuity, then the fuel pump needs to be replaced.

If you need further assistance troubleshooting your vehicle, then seek out a certified technician, such as one from YourMechanic, who can come to your location to determine why the car is not starting and suggest the necessary repairs.

Read Full Q/A … : How I replace fuel filter

How long and what is the process to replace a fuel pressure sensor?
ANSWER : A professional mechanic would require roughly 5 hours. (If just the regulator is replaced that takes about 1 hour). Some parts, as noted below, cannot be re-used, you need a precision inch pound torque wrench, FSM instructions (and TSB updates if applicable; procedure was changed in 2007 for instance) and the system has to be bled when done.

Below is partial list of steps, copied and pasted directly from the service manual:

1. Disconnect battery and put protective material in front of the charge air cooler (CAC) or damage to the CAC may occur.

2. Remove air cleaner assembly.

3. Disconnect the oil drain tube from the crankcase vent oil separator.

4. Loosen the air cleaner outlet tube clamp and detach the air cleaner outlet tube from the turbocharger.

5. Remove the bolts, the crankcase vent oil separator and the air cleaner outlet pipe as an assembly.

6. Remove and discard the crankcase vent oil separator press-in-place gasket. (To re-install, tighten to 13 Nm (115 lb-in).

7. Disconnect the PCM electrical connector (BE SURE BATTERY IS DISCONNECTED FIRST!) and retainer. Disconnect the in-line electrical connector and position the engine wiring harness on the engine.

8. Remove the pushnuts and the glow plug module heat shield.

9. Disconnect the high-pressure fuel injection pump electrical connector and detach the retainer from the glow plug module bracket. Disconnect the glow plug module and the exhaust gas recirculation temperature (EGRT) sensor electrical connectors, detach the wiring retainer and position the wiring harnesses aside.

10. Remove the nut and position the ground strap aside. To install, tighten to 13 Nm (115 lb-in).

11. Remove the engine wiring harness bolt. To install, tighten to 13 Nm (115 lb-in).

12. Remove the heater supply tube nut. To install, tighten to 13 Nm (115 lb-in).

13. Remove the bolts and the glow plug module bracket. To install, tighten to 13 Nm (115 lb-in).

14. Remove the nut and position the transmission fluid indicator tube aside. To install, tighten to 8 Nm (71 lb-in).

Warning: Do NOT disconnect the glow plug electrical connector before dislodging the seal from the valve cover or the wiring harness may be damaged.

15. Using an appropriate tool, dislodge the glow plug wiring harness seals from the valve cover.

16. Disconnect the glow plug electrical connectors by pulling on the glow plug wiring harness tee above the seal. Remove the glow plug wiring harness.

17. Remove the nut and position the crankcase ventilation drain tube aside.

18. Disconnect the wiring harness retainer from the valve cover stud.

19. Disconnect the wiring harness retainer from the generator bracket.

20. Disconnect the A/C pressure switch electrical connector. Position the harness aside.

Warning: Do not bend or flex the heater supply tube or damage to the tube may occur.

21. Remove the stud bolts, bolts and the valve cover. Remove and discard the valve cover gasket. To install, tighten to 9 Nm (80 lb-in).

Warning: Contact with exposed fuel injector wiring, if energized, may result in electric shock.

Use care when working on or around energized fuel injector wiring. Fuel injector wiring supplies HIGH VOLTAGE to operate the fuel injectors of course, you disconnected the battery though.

22. Disconnect the fuel rail pressure (FRP) sensor electrical connector.

Warning: Fuel injection equipment is manufactured to VERY precise tolerances and fine clearances (think space shuttle). To prevent fuel system damage, it is essential that absolute cleanliness is observed when working with these components. Always install fuel system caps on any open orifices or tubes.

23. Remove the FRP sensor. To install, tighten the FRP sensor in 2 stages.

Stage 1: Tighten to 7 Nm (62 lb-in).
Stage 2: Tighten an additional 40 degrees.

24. Bleed the high-pressure fuel system.

If you feel like this job may be too overwhelming or run into any issues, consider YourMechanic to get it done. One of our mobile technicians can come to your home and replace the fuel pressure sensor at your own convenience.

Read Full Q/A … : How I replace fuel filter

I have a truck that won’t run and is not getting gas to the engine. Fuel pump is running, have a new filter and new fuel pressure
ANSWER : Hi There,
It sounds like you may have a clogged fuel injector or potentially a faulty injector that is fried internally. I would suggest testing them if you have access to a multi meter. Disconnect the injector from the electrical connector and set your multi meter to Ohms mode and measure the resistance of the injector. After testing all injectors, compare the resistance. They should be the same or very close. If they are not, they will likely need to be replaced.

Read Full Q/A … : How I replace fuel filter

Fuel pressure
ANSWER : Hello,
You may want to try checking the fuel pump relay. The relay wires should have ground on two wires, power on one wire and switched power on another wire. To activate the fuel pump your ECU actually connects one of the ground wires to complete the circuit and send power to the fuel pump. If the wires all have power running through them, then it is likely you have a faulty relay. The wire coming from the fuel pump is the other ground wire. I would recommend having an expert from YourMechanic come to your location to diagnose your wiring as this can be very difficult and time consuming without the proper wiring diagram.

Read Full Q/A … : How I replace fuel filter