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Re: codes 0101 0171 0174 0446
I would recommend clearing the codes first and finding out if all four come back again. Code 101 is for a problem with the mass air flow sensor circuit. The sensor measures the amount of air entering the intake. Code 171 and 174 are for the O2 sensors telling the computer the fuel system is too lean on both banks. Code 446 is for a problem with the EVAP system which is what the computer uses to vent the gas tank to the vapor canister. Its possible code 101 could cause the next two, but not the last one. If the codes come back after you drive the truck, each code would need to be investigated.
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Open fuse in power distribution box Fuse 8 (40A) maxi, 5 (40A) maxi, 8 (30A) mini, 3 (30A) mini.
If the inspection reveals obvious concerns that can be readily identified, repair as required.
If the concern remains after the inspection, connect the scan tool to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the scan tool menu. If the scan tool does not power up:
check that the program card is properly installed.
check the connections to the vehicle.
check the ignition switch position.
If the scan tool still does not power up, refer to the scan tool manual.
Perform the DATA LINK DIAGNOSTIC TEST using the scan tool. If the scan tool responds with:
CKT 914 or CKT 915 = ALL MODULE NO RESP/NOT EQUIP, go to Communication Diagnostics in Section 418-00 to diagnose the network concern.
NO RESPONSE/NOT EQUIPPED for the driver door module (DDM), go to Pinpoint Test A.
If the DDM is not listed for a communication concern, turn the ignition switch to RUN, make sure all doors are closed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs, then execute the Self Test Diagnostics for the DDM. If the DDM exits diagnostic state during the self-test and returns to normal operation state, go to Pinpoint Test A.
If the DDM DTCs retrieved are related to the concern, go to the Driver Door Module (DDM) Diagnostic Trouble Code (DTC) Index to continue the diagnostics.
If no DTCs related to the concern are retrieved, go to the Symptom Chart to continue the diagnostics.
Do you know what a DTC is diagnostic trouble code ?
Are all windows not working ?
It is highly unlikely that all four O2 senosors are bad. They may read codes for free but they are parts people not automotive technicians. Parts people just want to sell you parts. A good technician wants to properly diagnose the problem and sell you the parts you need to fix that problem.
I assume your check engine light is on and they read codes. What where the codes?
abs concern. abs light. also, red brake light. is this correct? drive axle was replaced. testing for abs codes can lead to a pinpoint test.
once codes are read, there may be a specific area indicated to run tests. since the wheel hub area was where the recent work was performed...i suggest looking at the abs exciter ring for the wheel speed sensor.if the teeth are broken off , and or smashed or flattened. the hub, or the ring attached may need correction. there may also be a speed sensor wire and sensor concern after working in that area. inspect the sensor, its wires, and the connectors that attach it to the wiring. take the result of the code check, pinpoint test, and physical condition of the parts into mind, and decide. report your findings. you will need a good quality DVOM test meter to perform electrical tests. and guided diagnostic from the applicable service manual.
An engine lamp lit and a P0174 code retrieved is in fact a lean bank two concern. Bank 2 on the Freestar is the side of the engine that is closest to the radiator or front of the car. There are several concerns that can trigger this code. The reason the engine lamp comes on is because the oxygen sensor on that bank has sensed more oxygen then expected. When this happens the computer will increase the fuel injector pulse width, in turn adding fuel to compensate.
A leak in the intake system will generate a lean code. What we need to know is whether there are any pending codes. Many times a bank # 1 code will be pending or be close to being set. If this is the case the intake leak could be anywhere from the mass air flow sensor to the cylinder heads.
If P0174 is the only code and there are no other pending codes or high fuel trims (*will explain) then you need to look for air leaks that will only affect that bank. I would not expect a bad oxygen sensor without other codes indicating so. The oxygen sensor is doing exactly what it's supposed to do. An exhaust leak near the bank two oxygen sensor can cause this concern. As the exhaust pulses, it can draw in fresh air which will be read by the sensor. Also, a fuel injector not spraying the proper amount of fuel will cause a lean code however this would lead to a rough running or missing engine.
The best way to diagnose this concern is to have a scan tool hooked up, monitor the fuel trims and spray an accelerant such as 2+2 carb cleaner around the air intake system. If there is a leak, the fuel trims will go negative. (*fuel trims are used by the computer to monitor and adapt to conditons and for diagnostic purposes)
A visual inspection may show your concern but in most cases a scan tool that monitors sensors will be needed. Basic diagnosis will be between 1.0 - 1.5 Hrs. x the shops hourly rate. This should allow enough time to properly diagnose your vehicles concern. Most shops charge an average of $99.00 per shop hour.
Good luck, if you can't give four thumbs up, please ask for more information and I'll try my best to help. Have a great day!
I've seen two concerns that will definitely cause this concern. The first suggestion would be to replace the spark plugs if the vehicle has 50k or more miles. Ford originally stated that the original plugs would last 100k. It was later suggested that they be replaced at 60k. I've fixed several trucks by simply (or not so simply) replacing the spark plugs. Use caution, the plugs may break when removing. A symptom of this concern is as you stated but also on wide open throttle applications. the vehicle will bog down and sputter, then finally smooth out. A spark plug concern will typically not throw code because the computer monitors changes in rpm and is relative. If all cylinders aren't firing correctly, the computer doesn't know any different and does not store a code. Also, depending on the mileage, check the fuel filter.
The second concern could be the intake manifold runner control. This is used to modify torque and is located inside of the intake manifold.
Good luck, if you can't leave four thumbs up, please ask for more information. Have a great day!
THE ABS LIGHT WILL NOT TURN OFF UNTIL THE ABS PROBLEM IS FIXED.THE VEHICLE COMPUTER WILL HAVE A CODE FOR THE ABS PROBLEM.YOUR REGULAR BRAKES WILL WORK FINE BUT U WILL NOT HAVE ABS FUNCTION.ANY GOOD SHOP SHOULD BE ABLE TO FIX
P1410 - Fuel Tank Pressure System P0441 - Evaporative Emission Control System Incorrect Purge Flow P0773 - Shift Solenoid Electrical P0446 - EVAP Vent Solenoid Valve Control System
Ok, above are the codes listed on your description and there respective definitions. the P0441 and the P0446, basically run parallel and they mean the same thing. Its concerning the disposal of fuel fume waste that is burned in the EVAP canister during the EVAP process. the EVAP vent solenoid valve will have to be replaced.
The P1410 can be resolved be replacing the fuel pressure regulator which is part of the fuel pump assembly. I would also make sure the gas cap is correctly screwed on and its tight and mot lose.
The P0773 is quite different than the others. this concerns the solenoid that is located in the transmission pan. the scan has detected a malfunctioning solenoid that may ****** the shifting cycle of your transmission.
The EVAP situation will fail the emission's test if not fixed but, this shift solenoid issue, although not an emission's issue, should be check and fix soon.
On the code, I assumed all cars had different codes. In case this is not true, try 1791. The radio prompts for the code. Using station preset buttons #1-4, enter the four didit code. Push #1 once, then #2 seven times, etc. After all four didgits entered, I pushed the "CD" button, and voila. Good luck!
the cam sensor is located to the back of the engine (meaning to the right end of the engine where the transmission is bolted to it) P0340 most commonly is the sensor and what they call the syncronizer you will have to replace them both but be aware that this code can be caused by a wiring concern or a pcm concern,to replace the cam sensor/syncro you will need to make sure the engine is timed properly othewise the code will come right back,they make a timing tool that really should be used when doing this but I have done them in the past with out it and never had a problem.As for the p0430 it means your catalytic converter has went bad and will also need replaced as I recall there are 3 cats on this car p0430 means bank 2 which is the one on the front of the car but I reccommend to replace them all at once because as soon as you get the one replaced the others will start acting up.One other thing do not let someone sell you sensors for them as this will not fix the concern.