My 99 chevy silverado has a issue with the 4x4 inside the transfer case the gear just slips in and out whenever it wants causing loud thumping and griding noises..........is it all junk now can it still be fixed?
i think my transfer case is broken when you take off it makes a horrible grinding noise but it doesnt do it in 4 wheel drive or in revers is it the transfer case?i think my transfer case is broken when you take off it makes a horrible grinding noise but it doesnt do it in 4 wheel drive or in revers is it the transfer case?
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The most common thing to go wrong with chevy transfercase is the rear tailshaft has a snap ring that breakes. Just remove the bolts holding it on and inspect the shaft and see if the snap ring is broken.Then just replace it with a new on from the dealer.
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I need a bit more information I take it this a 4x4 cause when you talk about transfer case it means 4x4 and am I to understand you replaced the transmission and transfer case and tail shaft?
Your brake an CV joint issue can't an won't cause your 4X4 problem . The 4x4 system has a control module which supply's B+ voltage to the switch . Checking for codes in the 4X4 control module should have been the first step . Your best bet , take it to a qualified repair shop . You don't have the knowledge or test equipment to fix this.
SERVICE indicator (4WD/AWD) Lamp
The SERVICE indicator (4WD/AWD) lamp is an integral part of the cluster and cannot be serviced separately. This lamp is used to inform the driver of the vehicle of malfunctions within the automatic transfer case (ATC) system. The SERVICE indicator (4WD/AWD) lamp is controlled by the transfer case shift control module via CKT 1567.
Transfer Case Shift Control Module
The transfer case shift control module uses the VIN information for calculations that are required for the different calibrations used based on axle ratio, transmission, tire size, and engine. The system does not know which calibration to use without this information.
The direct battery supply line (CKT 1640) provides the power to the module and motor circuitry.
Transfer Case Encoder Motor
The transfer case encoder motor consists of a permanent magnet (PM) DC motor and gear reduction assembly. It is located on the left hand side (drivers side) of the transfer case. When activated it turns the sector shaft of the transfer case (clockwise or counter clockwise) to shift the transfer case. The encoder motor is controlled with a pulse width modulated (PWM) circuit within the transfer case shift control module. This circuit consists of a driver on both the Motor A and Motor B circuits. The encoder motor is bi-directional to allow the motor to shift the transfer case from 2HI or 4HI to NEUTRAL and 4LO positions.
Do you know what DTC'S are ?
DTC B2725 ATC Mode Switch Circuit Malfunction
DTC C0300 Rear Speed Sensor Malfunction
DTC C0305 Front Speed Sensor Malfunction
DTC C0308 Motor A/B Circuit Low
DTC C0309 Motor A/B Circuit High
DTC C0310 Motor A/B Circuit Open
DTC C0315 Motor Ground Circuit Open
DTC C0323 T-Case Lock Circuit Low
DTC C0324 T-Case Lock Circuit High
DTC C0327 Encoder Circuit Malfunction
DTC C0367 Front Axle Control Circuit High
DTC C0374 General System Malfunction
DTC C0376 Front/Rear Shaft Speed Mismatch
DTC C0387 Unable to Perform Shift
DTC C0550 ECU Malfunction
DTC C0611 VIN Information Error
Changing the Fluid would help But, It will not solve the Problem. It sounds like you may have a Broken tooth on a Gear inside the Transfer Case. The only real way to fix this is to Take the Transfer Case off and check the Gears and Electronics. Maybe even get it Overhauled.
i think my transfer case is broken when you take off it makes a horrible grinding noise but it doesnt do it in 4 wheel drive or in revers is it the transfer case?
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