What if i have zero knock count?
Thread Starter
Member
Joined: Mar 2006
Posts: 140
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From: Portland, Or
Car: 90 Chev Suburban 4x4, 5.3L, th400
Engine: 2002 5.3 Vortec swapped in.
Transmission: Stock th400
Axle/Gears: 10blt front/ 14bltSF rear 3.73 gears.
What if i have zero knock count?
I drove around for about 20 minutes with one of those little autoxray's, And never got a knock out of it. Could this possibly indicate a faultyknock sensor? Or is it sometimes normal to have zero knock? Thanks for the help!
Joined: Jun 2005
Posts: 1,245
Likes: 8
From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
Re: What if i have zero knock count?
what is your timing set at? the lower it is set the more chance of not having a knock.
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Joined: Mar 2004
Posts: 388
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From: Kansas, where the wind howls
Car: 84 Z28 H.O. w/Megasquirt II
Engine: semi-stock L69
Transmission: T-5 non W/C
Axle/Gears: 3.73 open
Re: What if i have zero knock count?
You could advance the timing enough to force it to knock, and see if you record counts then. That's how the stock ecm's test themselves.
Thread Starter
Member
Joined: Mar 2006
Posts: 140
Likes: 0
From: Portland, Or
Car: 90 Chev Suburban 4x4, 5.3L, th400
Engine: 2002 5.3 Vortec swapped in.
Transmission: Stock th400
Axle/Gears: 10blt front/ 14bltSF rear 3.73 gears.
Re: What if i have zero knock count?
its set at 4* base. You soppsoe that if i were to tap on the block with like a wrench or hammer that it would register as a knock?
Thread Starter
Member
Joined: Mar 2006
Posts: 140
Likes: 0
From: Portland, Or
Car: 90 Chev Suburban 4x4, 5.3L, th400
Engine: 2002 5.3 Vortec swapped in.
Transmission: Stock th400
Axle/Gears: 10blt front/ 14bltSF rear 3.73 gears.
Re: What if i have zero knock count?
Maybe i'll run up and try that real quick then. Of coarse that wouldent casue a rough idle/ idle surge situation anyway but i suppose it would be good to find out anyway.
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