knock sensor help
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New User
Joined: Sep 2010
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knock sensor help
so, after doing a little bit of reading, i think that the knock sensor is either bad or causing my motor to run badly. can someone please tell/show me where the plug for the knock sensor is on a 1997 5.4?
Lead Driver
Joined: Sep 2006
Posts: 7,907
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Mike, I don't know where you have been reading but on an F150/250 5.4, there is no knock sensor used unless it was a special application.
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For help, discribe your issue and any codes set.
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On knock sensor use, usually on a Mass Air system, no kock sensor is needed.
On Speed Density control systems, a knock sensor was very often used but that system has been obsolete for most of Ford's gas engines for quite a number years.
What does a knock sensor do?
It's use detects spark knock/ping due to over advanced ignition timing per engine loading and gas quality, and feeds back this signal to the computer as a way to retard igniton timing and reduce the knock below the danger point.
Mass Air control systems have so much control that a knock sensor is not normally needed.
.
For help, discribe your issue and any codes set.
.
On knock sensor use, usually on a Mass Air system, no kock sensor is needed.
On Speed Density control systems, a knock sensor was very often used but that system has been obsolete for most of Ford's gas engines for quite a number years.
What does a knock sensor do?
It's use detects spark knock/ping due to over advanced ignition timing per engine loading and gas quality, and feeds back this signal to the computer as a way to retard igniton timing and reduce the knock below the danger point.
Mass Air control systems have so much control that a knock sensor is not normally needed.
