Knock Sensor
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Lead Driver
Joined: Feb 2000
Posts: 5,373
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From: Palm Bay, Florida
Knock Sensor
How do I check my knock sensor to see if its bad-or even if I have on on my '94 F150 with 5.0 engine?? just recently it has been spark knocking under light and heavy acceleration, and I remember reading on here about knock sensors.
I don't even know where it would be, or what it looks like. Thanks!!
I don't even know where it would be, or what it looks like. Thanks!!
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Joined: Aug 2003
Posts: 1,859
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k-k-k-k-k-kNock sensor. First find out if your truck has one. I need to find out if my truck has one, I don't think so.
Probably time for some tune-up work. Check your EGR really well. Make sure your plug wires are good and are routed correctly to prevent cross-fire. Fuel filters clean and check fuel pressure.
Probably time for some tune-up work. Check your EGR really well. Make sure your plug wires are good and are routed correctly to prevent cross-fire. Fuel filters clean and check fuel pressure.
Lead Driver
Joined: Nov 2002
Posts: 9,555
Likes: 40
From: Concord, NC
The knock sensor is waay in the back of the engine, threaded into the block. You can test it by hooking up a timing light, and then tapping on the block with a hammer (metal hammer). If it is working properly, you should be able to see the computer retard the timing.
This is a view at the back of the motor.
This is a view at the back of the motor.
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