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Old 06-07-2011, 01:06 PM   #1 (permalink)
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Default Camshaft and Crankshaft Position Sensors

After 132,000 miles on my 2000 Taurus Duratec, I am going to proactively replace both of these sensors. I'm looking at buying the Wells products at AutoZone. Has anyone had a bad experience with the Wells sensors? Does brand make any difference?
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Old 06-07-2011, 01:12 PM   #2 (permalink)
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If you are looking for an honest opinion, I would say get Motorcraft if it's not too expensive. The only thing I have bought at Autozone that didnt turn out to be complete **** was oil changes, and a battery.
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Old 06-07-2011, 05:50 PM   #3 (permalink)
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Waste of money to change them. Crank and cam sensors will very often outlast the car. They have no moving parts, and are basically just a coil of wire wound around a magnet (a variable reluctance sensor).

Wells isnt the best quality stuff out there.
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Old 06-07-2011, 06:05 PM   #4 (permalink)
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I ended up buying BWD sensors, with a lifetime warranty, from Advance Auto Parts (40% off online prices).

I've replaced these on other people's cars before, where the situation was harrowing. Two months ago I replaced the Camshaft Position Sensor on a 2006 Nissan Altima 2.5L, with only 55,000 miles on it. It left the lady stranded for several days. Texas is so big that cell phones don't always work. Who wants to be stranded in 103 degree weather?

Exposed to heat and vibration, the extremely thin coating of insulation on tightly wound coil wire can break, causing an internal electrical short. Heat can, also, crack the sensor's housing and even cause the coil windings to expand, leading to failure.

The trick is how to replace the Crankshaft Position (CKP) Sensor, due to the bracket being in the way. Here's how:

. Disconnect negative battery cable.

. Place front of vehicle on jack stands.

. Remove right front wheel.

. Remove fender liner (front half only).

. Remove alternator splash shield (two 5.5mm screws).

. Remove bottom alternator bolt (13mm) and shield.

. Remove bracket blocking CKP Sensor--remove three 13mm side bolts, loosen both 10mm bottom nuts, and slide bracket out.

. Remove serpentine belt.

. Remove top front alternator bolt (18mm) and rotate alternator clockwise enough to remove CKP Sensor.

. Remove and replace CKP Sensor (8mm).

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Old 06-07-2011, 07:19 PM   #5 (permalink)
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Good choice! Ive had bad luck with the duralast (wells) dpfe sensors. I always try to source bwd from advance auto or oreilly.
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Old 06-08-2011, 07:15 PM   #6 (permalink)
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After installing the new Camshaft Position Sensor, the engine starts even easier and runs smoother. I was somewhat surprised, since nothing was wrong before.
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Old 06-08-2011, 07:25 PM   #7 (permalink)
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It is a possibility that you slighty missaligned it and now it has less spark advance at start-up... easy starts but maybe less power on high rev.
Or the old one was really bad (I didn't heard of that on a Duratec).
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Old 06-08-2011, 09:00 PM   #8 (permalink)
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Quote:
Originally Posted by topgunovrtx View Post
Two months ago I replaced the Camshaft Position Sensor on a 2006 Nissan Altima 2.5L, with only 55,000 miles on it. It left the lady stranded for several days. Texas is so big that cell phones don't always work. Who wants to be stranded in 103 degree weather?
That's very true...on late model Nissans. Ford doesn't really have problems with cam and crank sensors, though. What's done is done, but in the future save your money for Taurus-specific problems like oil leaks, front end parts, intake gaskets, IAC valves, etc.
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Old 06-08-2011, 11:48 PM   #9 (permalink)
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No alignment on the tec. Just r&r.
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Old 06-09-2011, 08:10 PM   #10 (permalink)
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Wells Vehicle Electronics informed me there is a failure issue with the Crankshaft Position Sensor and the Camshaft Position Sensor on the 2000 Taurus, with the 3.0L Duratec engine. They also advised to stay very tuned to failure signs, for example, misfire, harder to start than normal and intermittent engine cut out.
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