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I have a 2006 F-250, V-8 (gas), 4 wheel drive, manual transmission, with the ASB light on and off. The local auto parts store plugged in and told me the front right sensor needed to be replaced (or had bad wiring).
They wanted $100 for both front sensors (said they had to be changed together). I cannot afford that right now, or any time soon.
An internet search gave me prices ranging from well over $100 down to $25, for both just the right and for both together. Is there a way to find which is the correct sensor to buy?
First, check the wiring you can see in the wheel well for damage. The wheel speed sensors look to be active sensors, according to the wiring diagram. Before condemning the sensor it'd be a good idea to jack the right front side up and check for play in the bearing assembly. Also, if the wiring diagram I'm looking at is right, you should have >10 volts at the connector for the wheel speed sensor. And, it looks like the resistance through the sensor itself should be greater than 10k ohms.
Checking things first is a good idea because even though the sensors aren't terribly expensive, they rarely come out without breaking off in the bore, at the o-ring groove.
Had someone check some of that (no wire or connector damage and then after checking resistance, said the sensor was bad... I don't recall what he said the resistance actually was or wasn't). So after I can confirm that the sensor is in need of replacement, if that's the case, how do I tell from the several online finds which one to get? I plugged in all the truck specs, and still came up with wildly different prices.
Again, this is assuming that the sensor is in fact bad. While I got your attention
Personally, I use Ford/Motorcraft when I can. I've had decent luck with Standard, Delphi and Wells too. The front sensors are the same side to side. Just make sure you pick a front sensor for a 4wd, and you should be good to go.
So there's really no difference between a $100 single sensor and a $30 one, besides what they think they can get from some poor sap?
That's kind of a loaded question. They should all work, at least in theory. Some may be made with better materials and manufactured to a higher spec. Some may be just trying to rip ppl off.
So stick with known brands and don't buy any sensor that costs more than $500, unless they say it's gold plated... in that case buy no matter the cost.
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