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I am changing the timing chain in a 1993 Chevy S-10 with a 4.3L engine. I was told you have to disconnect a wire to reset it but I don't know where the wire is.

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Timing Chain: Service and Repair
REMOVAL
Tools Required = Crankshaft Sprocket Puller
1. Remove the timing cover.
2. Remove the crankshaft position sensor reluctor ring.
3. Remove the camshaft sprocket bolts.
4. Remove camshaft sprocket.
5. Remove timing chain.
6. Remove the crankshaft sprocket.
7. Remove crankshaft sprocket key.

INSTALLATION
1. Install the key into the crankshaft keyway.
2. Use the crankshaft balancer installer to install the crankshaft sprocket.
3. Install the camshaft sprocket and timing chain.
4. Install camshaft sprocket bolts.
Be sure to align the camshaft and the crankshaft sprocket marks. Timing marks (Number 4 Firing).
Tighten bolts to 21 ft. lbs.
5. Align the keyway on the reluctor ring with the key in the crankshaft.
6. Install the reluctor ring onto the crankshaft until the ring is completely seated against the crankshaft sprocket.
7. Install the timing cover.

Don't know what Wire you are referring to.

Posted on Nov 09, 2014

  • 6 more comments 
  • Ralf's Automotive Service

    Timing Chain: Service and Repair

    REMOVAL

    Tools Required = Crankshaft Sprocket Puller

    1. Remove the timing cover.

    2. Remove the crankshaft position sensor reluctor ring.

    3. Remove the camshaft sprocket bolts.

    4. Remove camshaft sprocket.

    5. Remove timing chain.

    6. Remove the crankshaft sprocket.

    7. Remove crankshaft sprocket key.



    INSTALLATION

    1. Install the key into the crankshaft keyway.

    2. Use the crankshaft balancer installer to install the crankshaft sprocket.

    3. Install the camshaft sprocket and timing chain.

    4. Install camshaft sprocket bolts.

    Be sure to align the camshaft and the crankshaft sprocket marks. Timing marks (Number 4 Firing).

    Tighten bolts to 21 ft. lbs.

    5. Align the keyway on the reluctor ring with the key in the crankshaft.

    6. Install the reluctor ring onto the crankshaft until the ring is completely seated against the crankshaft sprocket.

    7. Install the timing cover.



    Don't know what Wire you are referring to.

  • Ralf's Automotive Service

    Timing Chain: Service and Repair

    REMOVAL

    Tools Required = Crankshaft Sprocket Puller

    1. Remove the timing cover.

    2. Remove the crankshaft position sensor reluctor ring.

    3. Remove the camshaft sprocket bolts.

    4. Remove camshaft sprocket.

    5. Remove timing chain.

    6. Remove the crankshaft sprocket.

    7. Remove crankshaft sprocket key.



    INSTALLATION

    1. Install the key into the crankshaft keyway.

    2. Use the crankshaft balancer installer to install the crankshaft sprocket.

    3. Install the camshaft sprocket and timing chain.

    4. Install camshaft sprocket bolts.

    Be sure to align the camshaft and the crankshaft sprocket marks. Timing marks (Number 4 Firing).

    Tighten bolts to 21 ft. lbs.

    5. Align the keyway on the reluctor ring with the key in the crankshaft.

    6. Install the reluctor ring onto the crankshaft until the ring is completely seated against the crankshaft sprocket.

    7. Install the timing cover.



    Don't know what Wire you are referring to.

  • Ralf's Automotive Service

    Timing Chain: Service and Repair

    REMOVAL

    Tools Required = Crankshaft Sprocket Puller

    1. Remove the timing cover.

    2. Remove the crankshaft position sensor reluctor ring.

    3. Remove the camshaft sprocket bolts.

    4. Remove camshaft sprocket.

    5. Remove timing chain.

    6. Remove the crankshaft sprocket.

    7. Remove crankshaft sprocket key.



    INSTALLATION

    1. Install the key into the crankshaft keyway.

    2. Use the crankshaft balancer installer to install the crankshaft sprocket.

    3. Install the camshaft sprocket and timing chain.

    4. Install camshaft sprocket bolts.

    Be sure to align the camshaft and the crankshaft sprocket marks. Timing marks (Number 4 Firing).

    Tighten bolts to 21 ft. lbs.

    5. Align the keyway on the reluctor ring with the key in the crankshaft.

    6. Install the reluctor ring onto the crankshaft until the ring is completely seated against the crankshaft sprocket.

    7. Install the timing cover.



    Don't know what Wire you are referring to.

  • Ralf's Automotive Service

    Timing Chain: Service and Repair

    REMOVAL

    Tools Required = Crankshaft Sprocket Puller

    1. Remove the timing cover.

    2. Remove the crankshaft position sensor reluctor ring.

    3. Remove the camshaft sprocket bolts.

    4. Remove camshaft sprocket.

    5. Remove timing chain.

    6. Remove the crankshaft sprocket.

    7. Remove crankshaft sprocket key.



    INSTALLATION

    1. Install the key into the crankshaft keyway.

    2. Use the crankshaft balancer installer to install the crankshaft sprocket.

    3. Install the camshaft sprocket and timing chain.

    4. Install camshaft sprocket bolts.

    Be sure to align the camshaft and the crankshaft sprocket marks. Timing marks (Number 4 Firing).

    Tighten bolts to 21 ft. lbs.

    5. Align the keyway on the reluctor ring with the key in the crankshaft.

    6. Install the reluctor ring onto the crankshaft until the ring is completely seated against the crankshaft sprocket.

    7. Install the timing cover.



    Don't know what Wire you are referring to.

  • Ralf's Automotive Service

    Timing Chain: Service and Repair

    REMOVAL

    Tools Required = Crankshaft Sprocket Puller

    1. Remove the timing cover.

    2. Remove the crankshaft position sensor reluctor ring.

    3. Remove the camshaft sprocket bolts.

    4. Remove camshaft sprocket.

    5. Remove timing chain.

    6. Remove the crankshaft sprocket.

    7. Remove crankshaft sprocket key.



    INSTALLATION

    1. Install the key into the crankshaft keyway.

    2. Use the crankshaft balancer installer to install the crankshaft sprocket.

    3. Install the camshaft sprocket and timing chain.

    4. Install camshaft sprocket bolts.

    Be sure to align the camshaft and the crankshaft sprocket marks. Timing marks (Number 4 Firing).

    Tighten bolts to 21 ft. lbs.

    5. Align the keyway on the reluctor ring with the key in the crankshaft.

    6. Install the reluctor ring onto the crankshaft until the ring is completely seated against the crankshaft sprocket.

    7. Install the timing cover.



    Don't know what Wire you are referring to.

  • Ralf's Automotive Service

    Timing Chain: Service and Repair

    REMOVAL

    Tools Required = Crankshaft Sprocket Puller

    1. Remove the timing cover.

    2. Remove the crankshaft position sensor reluctor ring.

    3. Remove the camshaft sprocket bolts.

    4. Remove camshaft sprocket.

    5. Remove timing chain.

    6. Remove the crankshaft sprocket.

    7. Remove crankshaft sprocket key.



    INSTALLATION

    1. Install the key into the crankshaft keyway.

    2. Use the crankshaft balancer installer to install the crankshaft sprocket.

    3. Install the camshaft sprocket and timing chain.

    4. Install camshaft sprocket bolts.

    Be sure to align the camshaft and the crankshaft sprocket marks. Timing marks (Number 4 Firing).

    Tighten bolts to 21 ft. lbs.

    5. Align the keyway on the reluctor ring with the key in the crankshaft.

    6. Install the reluctor ring onto the crankshaft until the ring is completely seated against the crankshaft sprocket.

    7. Install the timing cover.



    Don't know what Wire you are referring to.

  • Ralf's Automotive Service

    Timing Chain: Service and Repair

    REMOVAL

    Tools Required = Crankshaft Sprocket Puller

    1. Remove the timing cover.

    2. Remove the crankshaft position sensor reluctor ring.

    3. Remove the camshaft sprocket bolts.

    4. Remove camshaft sprocket.

    5. Remove timing chain.

    6. Remove the crankshaft sprocket.

    7. Remove crankshaft sprocket key.



    INSTALLATION

    1. Install the key into the crankshaft keyway.

    2. Use the crankshaft balancer installer to install the crankshaft sprocket.

    3. Install the camshaft sprocket and timing chain.

    4. Install camshaft sprocket bolts.

    Be sure to align the camshaft and the crankshaft sprocket marks. Timing marks (Number 4 Firing).

    Tighten bolts to 21 ft. lbs.

    5. Align the keyway on the reluctor ring with the key in the crankshaft.

    6. Install the reluctor ring onto the crankshaft until the ring is completely seated against the crankshaft sprocket.

    7. Install the timing cover.



    Don't know what Wire you are referring to.

  • Ralf's Automotive Service

    Timing Chain: Service and Repair

    REMOVAL

    Tools Required = Crankshaft Sprocket Puller

    1. Remove the timing cover.

    2. Remove the crankshaft position sensor reluctor ring.

    3. Remove the camshaft sprocket bolts.

    4. Remove camshaft sprocket.

    5. Remove timing chain.

    6. Remove the crankshaft sprocket.

    7. Remove crankshaft sprocket key.



    INSTALLATION

    1. Install the key into the crankshaft keyway.

    2. Use the crankshaft balancer installer to install the crankshaft sprocket.

    3. Install the camshaft sprocket and timing chain.

    4. Install camshaft sprocket bolts.

    Be sure to align the camshaft and the crankshaft sprocket marks. Timing marks (Number 4 Firing).

    Tighten bolts to 21 ft. lbs.

    5. Align the keyway on the reluctor ring with the key in the crankshaft.

    6. Install the reluctor ring onto the crankshaft until the ring is completely seated against the crankshaft sprocket.

    7. Install the timing cover.



    Don't know what Wire you are referring to.

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Posted on Jan 02, 2017

  • 99 Answers

SOURCE: Does a 1993 BMW 318i have a timing belt or a timing chain?

Hi some of them have a belt but yours being the M43 engine is a chain, the only thing to listen for with them is chain slap or an rattling around the chain area, a bit of research on the M43 engine also shows that the chain should be changed after 100000 miles as they become weak, Just joined here and found this unsolved i know its a bit late but hope the extra info helps

Posted on Dec 03, 2008

  • 429 Answers

SOURCE: does a 2001 chevy cavalier have a timing belt?

You have a timing chain, don't have to change it like you do a belt.

Posted on Jul 08, 2009

  • 1857 Answers

SOURCE: I am having trouble setting the timing on a

The wire is either at the firewall under the black cover with the three plactic nuts. Or its under the passenger carpet all the way above the passenger feet. Or its right in the corner between glove box and door. If its never been touched it should be wraped and held in place with tape.

The wire is brown. Also if you want to bypass that what we do is goose the engine. For a split second the timing will drop to 0 if you do a quick 1500 rpm goose.
At idle with the wire hooked up about 16 to 18 degrees is normal. As soon as you unhook the wire it should drop to 0

Posted on Apr 07, 2010

gh20s
  • 343 Answers

SOURCE: 1990 Chevy Blazer K5 5.7 engine: has engine ping

The temperature sensor is where I would start. If the sensor tell the computer that the engine is cold it will initiate the warm up mode which includes advancing the timing along with a rich fuel mixture. Unfortunately, there are many sensors that assist in controlling timing and fuel mixtures that it is difficult for me to give you a guaranteed solution.

Posted on May 27, 2010

  • 462 Answers

SOURCE: we recently changed the timing chain of my BMW

ALLDATAdiy.com is the best solution for you I think.
$16.95 a year subscription.
All info and repair procedures.

Posted on Jun 01, 2010

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