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03-29-2016, 09:26 PM
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#1 |
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Registered User
Join Date: Mar 2011
Location: Coos Bay , Oregon
Posts: 272
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Knock sensor
Why does my 1985 truck have knock sensor ? At least I think that's what it is near the starter .
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1985 Chevrolet Custom Deluxe 4x2 , 305 v8 , 700R4 transmission |
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03-30-2016, 09:31 AM
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#2 |
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Registered User
Join Date: Nov 2015
Location: portage wi
Posts: 504
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Re: Knock sensor
If it doesn't have it now I would assume that originally it had ESC on it. Most guys have replaced the esc dist with a regular hei.
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03-30-2016, 09:38 AM
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#3 |
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Registered User
Join Date: Mar 2011
Location: Coos Bay , Oregon
Posts: 272
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Re: Knock sensor
It still has the original esc distributor , I guess I always thought knock sensors were for efi engines .
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1985 Chevrolet Custom Deluxe 4x2 , 305 v8 , 700R4 transmission |
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03-30-2016, 11:55 AM
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#4 |
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Registered User
Join Date: Nov 2015
Location: portage wi
Posts: 504
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Re: Knock sensor
The only real input the ESC system has is a knock sensor. It advances the timing up as far as the controller lets it and then uses the knock sensor to pick up pinging then adjusts it back down. It is amusing how big the controller and harness is for what little it really does.
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