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Replaced my knock sensors, took pics to maybe help a few people out

This is a discussion on Replaced my knock sensors, took pics to maybe help a few people out within the Technical / Maintenance forums, part of the General Discussion category; Hello everyone, last weekend I replaced the knock sensors in my truck, a 2000 Chevy Silverado 2500 6.0L. I took ...

  1. #1
    Do a burnout deadtrep's Avatar
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    Replaced my knock sensors, took pics to maybe help a few people out


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    Hello everyone, last weekend I replaced the knock sensors in my truck, a 2000 Chevy Silverado 2500 6.0L. I took a few pictures to show the process and overall I'd say that this job was pretty simple and straight forward. While replacing my knock sensors I also replaced the fuel pressure regulator located on the drivers side fuel rail, and the fuel crossover pipe that runs over the intake manifold and connect the passengers side fuel rail to the drivers side. I purchased all of the parts straight from the dealer.

    Here's a list of all the parts I bought: $331 Total

    (1) Intake manifold gaskets $70 something bucks
    (2) 2 Knock sensors $46 each
    (3) Knock sensor wire harness, I forget the cost
    (4) Fuel crossover pipe $50 bucks
    (5) Fuel pressure regulator $80 bucks

    Picture of all the parts:


    This job only required simple hand tools:

    (1) 8mm & 10mm Quarter inch drive socket (manifold, engine cover and egr bolts)
    (2) Flat head screw driver (intake tube clamp)
    (3) Patience when removing injector clips
    (4) Needle nose pliers to remove connectors from knock sensors (it's tough to reach your fingers down there)
    (5) Whatever size sicket fits the top of the knock sensors to remove them, I forget the size.
    (6) RTV sealant I'm pretty sure any color will work
    (7) Small Torx. I forget the size, but it was in my generic 100 piece craftsman kit
    (8) Fuel line disconnect tool if you want to replace the fuel line crossover pipe. It's just a cheap little plastic thing to push in the barbs that secure the line

    Steps:

    1. Remove engine cover (the thing that says Vortec on it)
    2. Remove throttle cable and the plastic plate thing that hold the wire harnes on top of the manifold 2 10MM bolts
    Plastic plate thing:

    in this picture, you can see how rusty my fuel line was and why i replaced it
    3. Remove Intake Air Tube from the throttlebody and the air filter
    4. Remove the connectors on the fuel injectors: Pull up the gray clip, push in the black tab, pull up the gray clip again and remove it, push black tab in again and remove the connector, thats it, It's simpler than it sounds.
    5. Remove the ten 8MM bolts that hold the intake to the block and disconnect the coolant line that connects to both sides of the throttle body
    6. With a small torx remove the fuel line from the fuel rail
    7. Unplug connectors to the Alternator, TPS, MAP, and whatever other plugs there are

    8. Push the fuel line and all the wiring to the drivers side of the engine compartment and remove the intake manifold.
    9. Pull the clips off of the two knock sensors and remove the knock sensors with a 3/8 inch ratchet and appropriate size socket
    10. Clean intake manifold and cylinder head mating surfaces and inside the knock sensor wells. I used an angle grinder with one of those soft cookie discs.



    11. Remove the old gaskets and install the new ones, they just snap on.
    12. Install new knock sensors and smooth the tops over with RTV to prevent water from entering.
    13. Repeat proces for assembly



    All done!



    If you are curious why I replaced the fuel line it is because it was fairly rusty and i didnt want to have it leak in the future, the same goes with the fuel pressure regulator. I have seen those fuel pipes leak on some Dodge engines, and thats what caused me to replace mine

    Hope this might help someone out.
    Last edited by deadtrep; 01-06-2010 at 10:44 AM.
    2000 Silverado 2500 NV4500 5 Speed 14 Bolt FF. Farm Truck.
    1972 Chevelle 383 Stroker. Money Pit
    1999 Dodge Intrepid 2.7L. Best Car Ever
    1984 Pontiac Parisienne 454. Burnout Machine
    1987 GMC V2500 Sierra Classic. Old Faithful

  2. #2
    Do a burnout deadtrep's Avatar
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    Re: Replaced my knock sensors, took pics to maybe help a few people out

    this entire job took me about four and a half hours, however i took my time and relaxed
    2000 Silverado 2500 NV4500 5 Speed 14 Bolt FF. Farm Truck.
    1972 Chevelle 383 Stroker. Money Pit
    1999 Dodge Intrepid 2.7L. Best Car Ever
    1984 Pontiac Parisienne 454. Burnout Machine
    1987 GMC V2500 Sierra Classic. Old Faithful

  3. #3
    Registered User nitrouskid2601's Avatar
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    Re: Replaced my knock sensors, took pics to maybe help a few people out

    i thought i took my time on the last one i done, it took me 2.5 hrs. i have done a few of them though, its really not as bad of a job as people think. just as long as your carefull with the injector clips, i have seen somebody break a few of them before.

  4. #4
    Do a burnout deadtrep's Avatar
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    Re: Replaced my knock sensors, took pics to maybe help a few people out

    yeah i agree it was a very simple job
    2000 Silverado 2500 NV4500 5 Speed 14 Bolt FF. Farm Truck.
    1972 Chevelle 383 Stroker. Money Pit
    1999 Dodge Intrepid 2.7L. Best Car Ever
    1984 Pontiac Parisienne 454. Burnout Machine
    1987 GMC V2500 Sierra Classic. Old Faithful

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    Registered User Tweaks's Avatar
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    Re: Replaced my knock sensors, took pics to maybe help a few people out

    I'm a big fan of keeping the camera close by and using it to show just how straight forward and easy a lot of these common projects are. Well done and thanks for creating a photographic how-to.
    00 RCSB Z71/JBA cat-back/Z71 Tahoe valance/EBC slotted&drilled rotors with SS lines & SS braided hoses/Edelbrock headers/BB tune/6000k HID low beam & fog lamps/Auto-headlight disable mod(nice)/Vette servo/LT1 E-fans/LED gauge cluster/Titan 18" wheels/Rollpan/Belltech rear sway bar/2-4 drop

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    Registered User 2500ak's Avatar
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    Re: Replaced my knock sensors, took pics to maybe help a few people out

    Good writeup

    Transgo HD2 | Magnaflow DI/DO | CAI | BlackBear Tune| Dual Optima Red Tops: 2000 Cold Craking Amps | Denali Projectors |

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    Do a burnout deadtrep's Avatar
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    Re: Replaced my knock sensors, took pics to maybe help a few people out

    Thanks everyone!
    2000 Silverado 2500 NV4500 5 Speed 14 Bolt FF. Farm Truck.
    1972 Chevelle 383 Stroker. Money Pit
    1999 Dodge Intrepid 2.7L. Best Car Ever
    1984 Pontiac Parisienne 454. Burnout Machine
    1987 GMC V2500 Sierra Classic. Old Faithful

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    Kenzo
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    Re: Replaced my knock sensors, took pics to maybe help a few people out

    The knock sensor harness is GM#12601822. Price was $45.xx

    Since I haven't seen anyone on the board post the part number before for the harness. And my dealership ordered me the wrong part(the engine harness side of the ks wiring) after looking it up the first time, I found the part number online somewhere. I figure if I could save one person from dealing with an idiot(long story) like I had at the local dealer, it's worth it.


    Also got my knock sensors from this guy on ebay, AC Delcos. $51.xx shipped for both, and at my door in three days.
    http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWNX%3AIT
    Last edited by Safe&Sound215; 01-07-2010 at 09:40 PM.

  9. #9
    .D.
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    Re: Replaced my knock sensors, took pics to maybe help a few people out

    bookmarked! thanks! ill be doing mine in the next couple months. and for that price ill do both! (only one code on now)

    2000 ECSB - Fabtech - 35" KM2 - 17" Rock Crawlers - HPP3 - Detroit


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    Hukd on Fonix Wrkd 4 Me! SilveradoZ71's Avatar
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    Re: Replaced my knock sensors, took pics to maybe help a few people out

    I'm in the middle of doing the intake manifold gaskets on the wife's 02 Tahoe with a 5.3. Any need for RTV on the gaskets?

    And thanks for the tip on the injector clips! I was baffled until I found this post!
    2002 Z71 - 5.3L & 3.73's
    3" PA Body Lift
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    Hukd on Fonix Wrkd 4 Me! SilveradoZ71's Avatar
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    Re: Replaced my knock sensors, took pics to maybe help a few people out

    Never mind...instructions inside the gasket set said "DO NOT USE ANY GASKET SEALER"
    2002 Z71 - 5.3L & 3.73's
    3" PA Body Lift
    16x8 Mickey Thompson Classic II's
    305x70x16 Buckshot Mudders
    Dumped 18" Magnaflow Muffler
    Escalade Cluster

 

 

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