It's been many years, but on my 1999 5.4L, the previous owner said he had replaced the O2 sensors a couple times, and the check engine light was on again... probably another O2 sensor. I bought it and the code said O2... replaced it, and the code came up right away. It turned out to be a corroded, almost broken wire about 12-15 inches from the sensor. It looked like the wire had been pinched real bad and broke the insulation. Never had another bad O2.
Contamination from oil comsumtion your engine probably go thrue lots of oil
I do understand that but what is causing the oil to burn off quickly
sticky ring on the piston worn ring valve seal me i would put a liter of lucas aditive on your next oil change and maybe put 1 grade of oil higher if you normally put 5w 20 try 3w30 or 10w30 with that you should see a huge difference in your oil comsumtion
sorry i wanted to say 5w30
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I would go with Robert's answer. I do a lot of electrical. Most times wire break close to the plug. But 12+ inches isn't out of the realm. If I can't find continuity within 6 inches, I run a new wire and cut in close to plugs, or replace the leads in the plugs.
Maybe its burning too rich
SOURCE: oxygen sensor keeps going bad,
It could be the problem or he just wants to make a lot if money. I had a similar problem and it turned out to be electrical. I had another component out that caused an abnormal electrical condition, it could be happening to you. Check to make sure the sensor is within it electrical limits, (volts, amps, and ohms) and then refer to your vehicles electrical schematic to find relative components within the system. Don't go rippin into you motor, yanking off the heads, until you eliminate the problem as being electrical. get a good multimeter and remember, its only a 12v system. good luck
SOURCE: change oxygen sensor 2001 ford windstar
fist unclip wire,then unscrew it with a 28mm spanner ,fitting procedure is the reverse .It turns anticlockwise to unscrew and clockwise to screw up ,torque setting is a grunt and two scuffed knuckles and max of 3 swear words
SOURCE: TOO LEAN CODES
yes very very common code for these motors i get them all the time. now the first thing i do is listen to the pcv valve for noise if it is rattling this is the problem and is the most common of all. another thing is the intakes leak from cracks in them but the only way to find it is with a smoke machine. now the one other thing i have seen before is debre like a leaf in the mass air flow sensor but you have replaced it so most likely no that.
do your self a favor and change the pcv valve it only cost under 5 dollars. if this is not it you will need to find the leak in and around the intake or a vacuum hose.
because you have two lean banks this mean if it is a leak then it has to be in common with both banks and that is the vacuum line system intake etc...
let mew know if you have any more question. good luck man
SOURCE: Ford F-150 2001 when you run the A\C and go to
this is very common problem, theres a vacuum leak.check the vacumm lines under the hood also check the one that goes inside to heater controls, whats happening is that it looses vacuum when you accel because the motor takes it,theres a one way valve that holds the vaccum when this happens but with a leak it cant hold vacuum,heres a vacuum diagram to help you check the vacuum lines,i dont know which engine you have in that 150 but this will be close. take good look at the circled areas in the diagrams,good luck, hope this helps you.
SOURCE: 1999 ford crown vic with ignition coils going bad a lot.
have look at ur wires that is caming from the car in to the coil it self
Testimonial: "Thanks for the info. I did replace coils made in the good ol USA and the car is running much better. Better gas mileage as well. Thanks again."
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Hi Matthew m, what is the actual trouble code, and how long does it take for the sensor to fail ?
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