What kind of transfer case does Gm K 1500 have?

We looked at two GM K 1500 trucks that have the NVG 246 two-speed transfer case. One is a 1999 model, the other a 2000. Both use the same controls and happen to have stored the same DTC.

What is the TSB number for a GM Truck?

After all, General Motors TSB No. 02-04-21-004 indicates a known problem with this switch assembly. Before we look at the other truck, it might be useful to see what GM’s ESI website (www.acdelcotds.com) information says about B2725, to get a better understanding of the system’s design characteristics.

How does the transfer case module work on a truck?

The transfer case module sends 8 volts to the switches, then monitors the return circuit to determine whether any of the switches is depressed. It can determine this because each switch has a different resistor in series with the circuit. Since both trucks have mode switch trouble codes, it seems logical to start there.

What does DTCs stand for in GM transfer case?

DTCs will stay in memory for 100 key cycles. The dash buttons to the right of the air vent identify this system as an NVG 246 automatic two-speed, which means it has DTCs and scan tool capabilities. mode control is a set of normally open switches that vary the voltage supplied by the transfer case module when closed.

We looked at two GM K 1500 trucks that have the NVG 246 two-speed transfer case. One is a 1999 model, the other a 2000. Both use the same controls and happen to have stored the same DTC.

Is the transfer case working with the front axle spinning?

The transfer case is working and engaged with the front axle spinning as it should. Any idea on what the problem could be or where to start looking? Thanks. There is an actuator on the front axle that are known to sometimes go bad.

What was the GM 4×4 transfer case in 1979?

1979: The 305 (5.0) motor was in use by now. 1980: This was the only year GM offered only 1 transfer case in its 4×4 line up. ALL 1980 model GM 4x4s came with the NP205.

Where is the transfer case on a 4WD car?

As previously mentioned, the transfer case is found on vehicles with AWD or 4WD capability and is integral in allowing drivers to switch to these modes of operation. A typical 4WD transfer case is found at the rear of the transmission. It is powered by the transmission output shaft and operates much like a secondary transmission.

What does a GM transfer case motor do?

One is a 1999 model, the other a 2000. Both use the same controls and happen to have stored the same DTC. The basic system consists of a transfer case motor and encoder, front differential actuator, transfer case module, speed sensors, switches and park input and output to the PCM.

Which is GMC Yukon has a transfer case?

All Wheel Drive (AWD) transfer case for GMC Yukon, Denali, Sierra 2001-2005. Cadillac Escalade Ext. Esv. 2000-2002. Call with your VIN # or Model # (located on rear case half of transfer case) to insure we ship you the right transfer case for you vehicle. 27 spline Input Gear.

What kind of transfer case does a Chevy Silverado have?

Chevrolet Silverado- GMC Sierra 2500HD/3500HD with 6.6L duramax diesel with allison transmission. Also available are the 6.0L gasoline engine transfer cases with 6L90 transmission.

How does a 4 wheel drive transfer case work?

It is powered by the transmission output shaft and operates much like a secondary transmission. Most 4WD transfer cases have four modes of operation: two-high, neutral, four-low, and four-high. Because the driver only engages the 4WD when needed, this type of system is called “part-time” four-wheel drive.

Can a bad transmission be a transfer case?

The transfer case is a part of your vehicle’s drivetrain, as is the transmission—and they both have their respective functions. Despite this, the symptoms of transmission failure can mimic those of a bad transfer case. This can sometimes result in confusion for vehicle owners who are attempting to fix their car themselves.