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Old 09-30-2013, 07:23   #1 (permalink)
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ANTI-KNOCK SENSOR

Can anyone tell me where I might find this sensor?,,94 F150 pick up, with 302efi and Auto trans.
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Old 09-30-2013, 08:57   #2 (permalink)
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Re: ANTI-KNOCK SENSOR

Here it is. Easy to get to.
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File Type: jpg KnockSensor50.jpg (51.5 KB, 12 views)
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Old 09-30-2013, 10:19   #3 (permalink)
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Re: ANTI-KNOCK SENSOR

yeah sure when it on the ground LOL,, but in vehicle bet not
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Old 09-30-2013, 12:37   #4 (permalink)
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Re: ANTI-KNOCK SENSOR

Quote:
Originally Posted by 94f150driver View Post
yeah sure when it on the ground LOL,, but in vehicle bet not
That's what I was referring to.
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Old 09-30-2013, 17:01   #5 (permalink)
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Re: ANTI-KNOCK SENSOR

It's a lot easier with the upper plenum off, you'll need either a T25 or T30 on a long skinny extension (preferably 1/4" drive) to get to the center bolt on the passenger side of the plenum.
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Old 09-30-2013, 18:47   #6 (permalink)
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Re: ANTI-KNOCK SENSOR

now that know where it at, where do I find one,, everyone says it been discontinued-obsolete
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Old 10-01-2013, 18:30   #7 (permalink)
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Re: ANTI-KNOCK SENSOR

May need to either bypass it or get one out of the junk yard.
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Old 10-02-2013, 15:09   #8 (permalink)
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Re: ANTI-KNOCK SENSOR

when you say bypass, you just unplug it or is it more advances than that?
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Old 10-02-2013, 15:38   #9 (permalink)
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Re: ANTI-KNOCK SENSOR

The OEM part number you are looking for is E3AF-12A699-AA and appears to be impossible to find.

Standard Motor Products # KS13 (discontinued) was an aftermarket replacement with few still available.

Found a few on eBay KS13 knock sensor | eBay
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Old 10-02-2013, 18:41   #10 (permalink)
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Re: ANTI-KNOCK SENSOR

Find a used sensor.
Do not bypass it.
The device is a Quartz crystal that generates a signal from a knock detection in the block, to the ECM.
The reason is it detects spark knock and retards the ignition timing up to 8 degrees for a short time until the knock is no longer present.
Without it you may hear ping and knock under heavy loads and is not good for piston, rod and main bearing health..
Good luck
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