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Whereis my knock sensor located on 5.7 liter Vortec motor

This is a discussion on Whereis my knock sensor located on 5.7 liter Vortec motor within the Technical / Maintenance forums, part of the General Discussion category; I cannot find my knock sensor???? I have a code saying it is bad,butcannot findit to replace it??...

  1. #1
    Registered User bowhunter920's Avatar
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    Whereis my knock sensor located on 5.7 liter Vortec motor


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    I cannot find my knock sensor???? I have a code saying it is bad,butcannot findit to replace it??
    99 Chevy 1500 classic with 5.7l, Z71, Lifted with 6" RCX, torsion keys, 35" BFG Km2s on Mickey Thompson Sidebiters, optima red top, dual flowmasters, ranch hand bumper....

  2. #2
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    Re: Whereis my knock sensor located on 5.7 liter Vortec motor

    it is right behind the starter on the passenger side...unfortunetly you have to remove the starter to take the sensor off.

    Did you ever figure out your overheating issue.
    Last edited by stamp32; 03-28-2011 at 07:09 PM.

  3. #3
    FastOrange BlacK20's Avatar
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    Re: Whereis my knock sensor located on 5.7 liter Vortec motor



    1978 K20 RCLB, 400 SBC, 4-Speed, Lifted
    1998 Pontiac Grand Prix GT, Coupe

  4. #4
    Addicted to EFI ! Eagle-Mark's Avatar
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    Re: Whereis my knock sensor located on 5.7 liter Vortec motor

    YOUR KS is a little low...

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    Addicted to EFI ! Eagle-Mark's Avatar
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    Re: Whereis my knock sensor located on 5.7 liter Vortec motor

    To the origanl poster, check the wire running to it as they are usually the culprit...

  6. #6
    OBS'r jsmitty74's Avatar
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    Re: Whereis my knock sensor located on 5.7 liter Vortec motor

    I've never had to remove the starter to get to them......................

    They are on the passenger side of the block, about half way from front to back, and right above the oil pan gasket

    Last edited by jsmitty74; 03-28-2011 at 08:32 PM.
    wah!

    If it ain't a Chevy, or a Peterbilt, it doesn't count!

    1996 1 ton crew, single wheel, 350, 4L80E
    1989 3/4 ton. Parked for good, ready for the salvage yard
    2003 Chevy Venture (wife's)

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    FastOrange BlacK20's Avatar
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    Re: Whereis my knock sensor located on 5.7 liter Vortec motor

    Quote Originally Posted by Eagle-Mark View Post
    YOUR KS is a little low...
    Ummm, nope.


    1978 K20 RCLB, 400 SBC, 4-Speed, Lifted
    1998 Pontiac Grand Prix GT, Coupe

  8. #8
    Registered User bowhunter920's Avatar
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    Re: Whereis my knock sensor located on 5.7 liter Vortec motor

    Quote Originally Posted by stamp32 View Post
    it is right behind the starter on the passenger side...unfortunetly you have to remove the starter to take the sensor off.

    Did you ever figure out your overheating issue.
    I was wondering why I cant see it. I will remove my starter and look.

    No I have not figured out my overhaeting issue.... I found a crack in my radiator, maybe that is causing it.
    99 Chevy 1500 classic with 5.7l, Z71, Lifted with 6" RCX, torsion keys, 35" BFG Km2s on Mickey Thompson Sidebiters, optima red top, dual flowmasters, ranch hand bumper....

  9. #9
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    Re: Whereis my knock sensor located on 5.7 liter Vortec motor

    Quote Originally Posted by Eagle-Mark View Post
    To the origanl poster, check the wire running to it as they are usually the culprit...
    I am having the same problem, but I can not trace the wire back to replace it. Can you tell us how to replace?

  10. #10
    Registered User MarkEagleUSA's Avatar
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    Re: Whereis my knock sensor located on 5.7 liter Vortec motor

    Is the knock sensor in a water jacket where coolant will come pouring out when it's removed?
    Mark
    97 K2500, 5.7, 4L80E, 4.10 Posi

  11. #11
    Registered User dave89iroc's Avatar
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    Quote Originally Posted by MarkEagleUSA View Post
    Is the knock sensor in a water jacket where coolant will come pouring out when it's removed?
    Yes
    ASE Master Certified Technician

    2000 Silverado 6.0 4L80E 2wd
    *RIP*1994 Z71 SCLB 355, Dart Heads, 10.5:1 CR, PM rods, CC XR270HR

 

 

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