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99 Tahoe starter problem

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  • 99 Tahoe starter problem

    I have a 1999 Tahoe 5.7 2wd last week i went to turn it on and sounded like it was a diesel, loud engine noise, turned it off and back on and noise went away. So couple days ago i tried turning it on and it wouldnt crank sounded like a bad starter. I looked under the truck and see one of the starter bolts laying on the floor broken. Bought a new starter for the truck put it on with shims, truck still wont start and keeps breaking and bending the bolts. Replaced starter again thinking it was defective, now it just cranks but wont start. Im stumped!!!

    DJM 4/6 265/35/22 Esky Handles Esky Front End

  • #2
    Re: 99 Tahoe starter problem

    It sounds like the crankshaft sensor. This is common and if you keep trying to start it, you could break the end/nose of the starter off or crack the block at the starter bolt holes. I believe there is a GM TSB on it. The sensor is located in the bottom pass side of the timing cover. The is also a relearn proceedure that you may or may not have to do after replacing it. Here is a sticky post from this forum that covers it I believe:

    http://www.fullsizechevy.com/forums/...t-relearn.html
    1998 GMC Sierra SLE 1/2 ton 2WD 305 Vortec
    -Gibson Stainless Cat Back Swept Side
    -255/70 BFG Radial T/A on SS 15's


    :nutkick:

    Comment


    • #3
      Re: 99 Tahoe starter problem

      Sounds more being like an ignition problem, back fire. Also checking flying wheel for missing teeth.
      Last edited by JZ57_CN; 01-01-2009, 01:28 AM.

      Comment


      • #4
        Re: 99 Tahoe starter problem

        Here is a post from another forum:

        try this
        Subject: No/Hard/Slow Start, Backfire/Kickback (Replace Crankshaft Position Sensor) #00-06-04-014 - (03/28/2000)



        Models: 1999-2000 Cadillac Escalade

        1995-2000 Chevrolet and GMC S/T Models

        1996-2000 Chevrolet and GMC C/K, M/L , G, P Models

        1996-2000 Oldsmobile Bravada

        with 4.3 L, 5.0 L, 5.7 L or 7.4 L Engine (VINs W, X, M, R, J -- RPOs L35, LF6, L30, L31, L29)




        --------------------------------------------------------------------------------

        Condition
        Some customers may comment on one or more of the following conditions:

        • Backfire during crank/start

        • "Kickback" during crank/start

        • "No" start

        • "Slow" or "hard" start/crank

        • "Grinding" or unusual noises during crank/start

        • Cracked or broken engine block at the starter boss

        • Broken starter drive housing

        • Broken starter ring gear on flywheel

        • Any combination of the above

        Cause
        A condition may exist that allows the crankshaft position sensor to command up to 50 extra degrees of spark advance during engine cranking only. This in turn exposes the engine to higher than normal cylinder pressures which may result in an inoperative condition to the starter drive housing, the engine flywheel starter ring gear, or the engine block at the outside edge of the starter boss.

        Correction
        Inspect for a stored powertrain DTC code P0338. This DTC will NOT illuminate the "Service Engine Soon" light. If this code is stored, the Crankshaft Position Sensor, P/N 10456607, MUST be replaced and the remaining components inspected for damage (engine block at the starter boss, the starter drive housing, and the engine flywheel starter ring gear).

        Notice: When DTC code P0338 is set, failure to replace the Crankshaft Position Sensor could result in repeated inoperative conditions of the starter or flywheel.

        Important: Some flywheel wear is normal; broken or missing teeth and/or cracks, are not normal.

        Parts Information
        Parts are currently available from GMSPO.

        Warranty Information
        For vehicles repaired under warranty, use:

        Labor Code
        Description
        Labor Time

        J4355
        Sensor, Crankshaft Position - Replace
        Use Published Labor Time
        1998 GMC Sierra SLE 1/2 ton 2WD 305 Vortec
        -Gibson Stainless Cat Back Swept Side
        -255/70 BFG Radial T/A on SS 15's


        :nutkick:

        Comment


        • #5
          Re: 99 Tahoe starter problem

          Thanks BWOOD will be changing this sensor Sat. morning. Hope it isnt too difficult to get to.

          DJM 4/6 265/35/22 Esky Handles Esky Front End

          Comment


          • #6
            Re: 99 Tahoe starter problem

            It is easy, there might be a little oil come out of the hole. Just be prepared to catch it. Make sure the new sensor comes with an oring. It is held in with a bracket that is made to the sensor and bolts to the timing cover.

            Here is the proceedure from the Chilton Manual:

            Disconnect neg terminal on batt
            Unplug electrical connector at Crankshaft PS
            Remove retaining bolt and remove the sensor

            Install sensor with new oring-lube oring w/ clean oil
            Install retaining bolt-be careful not to over tighten
            Attach electrical connector
            Attach neg terminal on batt

            Good Luck
            1998 GMC Sierra SLE 1/2 ton 2WD 305 Vortec
            -Gibson Stainless Cat Back Swept Side
            -255/70 BFG Radial T/A on SS 15's


            :nutkick:

            Comment


            • #7
              Re: 99 Tahoe starter problem

              Just replaced it and nothing. Sounds like something is grinding when i crank it inside engine.

              DJM 4/6 265/35/22 Esky Handles Esky Front End

              Comment


              • #8
                Re: 99 Tahoe starter problem

                maybe its the fly wheel like JZ57_CN said...
                02 GMC Sierra ECSB - 05 front clip
                2008 Silverado 4x4 Z71 Crew Cab - Stock......for now
                67 1/2 ton Suburban - Project DRGWGN

                Comment


                • #9
                  Re: 99 Tahoe starter problem

                  Have you checked to see if you have any stored trouble codes?
                  1998 GMC Sierra SLE 1/2 ton 2WD 305 Vortec
                  -Gibson Stainless Cat Back Swept Side
                  -255/70 BFG Radial T/A on SS 15's


                  :nutkick:

                  Comment


                  • #10
                    Re: 99 Tahoe starter problem

                    did you ever figure this out?

                    Comment

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