Question about 2003 Chevrolet Silverado 3500

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Where do you check the gresse on the transfer case

Posted by Anonymous on

  • yadayada
    yadayada Mar 19, 2011

    do you mean IN the transfer case? and it doen't use grease it uses ATF

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  • 492 Answers

There should be a square plug of the side of the case.

Posted on Mar 19, 2011

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2009 chevy Silverado code CO321 transfer lock circuit failed


DTC C0321 01: Transfer Case Lock Circuit Short to Battery
DTC C0321 02: Transfer Case Lock Circuit Short to Ground
DTC C0321 04: Transfer Case Lock Circuit Open
DTC C0321 08: Transfer Case Lock Circuit Signal Invalid

The transfer case shift control module controls the transfer case lock solenoid.
The transfer case lock solenoid is released by being energized. This is accomplished by grounding the lock solenoid control circuit during gears shifts, and in the AUTO 4WD mode. Locking action is applied when power or ground are taken away from the lock solenoid, the transfer case motor is prevented from moving. The system is capable of providing a 2HI, 4HI and 4LO lock-up without the need of additional vehicle power to hold the transfer case in these positions.
This DTC detects an open lock solenoid coil, open motor lock control circuit, or an open batter positive voltage circuit, or a short to voltage or ground on the lock solenoid control circuit.


Circuit/System Testing
The battery positive voltage circuit and the lock solenoid control circuit must be tested for opens, shorts to ground, shorts to voltage, and high resistance. This can also result from a electrically faulted solenoid.
With the ignition on check which DTC is set. If DTC C0321 is set with failure type byte 04 then do the following.
? The transfer case lock is unable to hold during a hold test and the transfer case actuator will need to be replaced, and the motor learn procedure performed. If this is not the case continue to the next step.
Disconnect the transfer case actuator, turn on the ignition and with a DMM check the battery positive voltage circuit for battery voltage at the transfer case actuator.
? If battery voltage is not seen then repair the battery positive voltage circuit for an open or high resistance. If the circuit checks out proceed to the next step.
Disconnect the transfer case control module connector X2 and check the circuit for an open, high resistance, short to ground, or short to voltage. If condition is found repair the circuit or inline connector 109 as necessary, if the condition is not found refer to component testing.

May 18, 2018 | Cars & Trucks

1 Answer

Have 2004 Chevy1500z71&service 4wd message comes onafter it in 4H but it still worksHad fluids changed 2 yrs ago.Goes into 4wdfine&seems like it runs good. Comes on sometime even not in 4wd. Thanks


Which transfer case does your truck have ?
SERVICE 4WD
Refer to
?€¢
Transfer Case Description and Operation for the Transfer Case - NVG 149-NP3


?€¢
Transfer Case Description and Operation for the Transfer Case - NVG 246-NP8


?€¢
Transfer Case Description and Operation for the Transfer Case - NVG 261-NP2


?€¢
Transfer Case Description and Operation for the Transfer Case - NVG 263-NP1


The SERVICE 4WD indicator is located in the instrument panel cluster (IPC), and shares the common power and ground of the IPC. The transfer case shift control module controls the service indicator by sending the IPC a Class 2 message. This indicator may be controlled with the scan tool using the IPC device controls.
You should take it to the dealer an have it checked for DTC'S -diagnostic trouble codes

Jan 07, 2016 | Cars & Trucks

1 Answer

Service awd light comes on and off awd doesn't work when light is on


You need to check wiring an connectors at the transfer case shift control module an check power an grounds at the module ! If all seams good there a scan tool will need to be hooked up to check for codes ! If none of this makes no sense or you don't under stand any of this you need to take it to someone who does !

1

Was the Transfer Case Diagnostic System Check performed?
--
Go to Step 2
Go to Transfer Case Diagnostic System Check

2

  1. Install the Scan Tool .
  2. Turn the ignition ON, engine OFF.
  3. Use a Scan Tool in order to command the SERVICE indicator (AWD/4WD) lamp OFF.
Does the SERVICE indicator (AWD/4WD) lamp turn off?
--
Go to Step 3
Go to Step 4

3

Replace the transfer case shift control module. Refer to Transfer Case Shift Control Module Replacement .
Is the repair complete?
--
Go to Transfer Case Diagnostic System Check
--

4

Replace the instrument cluster. Refer to Instrument Cluster Replacement in Instrument Panel.
Is the repair complete?
--
Go to Step 5

Feb 23, 2015 | 1999 Oldsmobile Bravada

1 Answer

Changed to 4wheel drive low and I can't get it to change back to 2 wheel drive.


1999 Blazer. Thing's to check. 4x4 problem. There's an actuator pump under your battery plate. Make sure its in good shape and its working proper. Next check the cable that runs from the pump to the front transfer case. Then check the actuator switch on the front transfer case. Then check the vacuum lines from the front transfer case to the rear transfer case, that should be right under the drivers side door. There's also a actuator switch on the rear transfer case witch two vacuum lines run out of. Check them also, and last check your fluid level in your transfer case. Start from the beginning to the end. Don't forget to use your 4x4 every know and then to keep it up to power. Its not like the good old days. Where a pull of the lever on the floor engaged the 4x4. I hope this helps.

Apr 09, 2014 | 1999 Chevrolet Blazer

1 Answer

I have a leak in the transfer case, just had the shop replace so seals in the engine and now they say transfer case is leaking shouldn't that have been checked then?


the engine and transfer case are to totally different monsters your transfer case controls the four wheel drive if your engine was leaking oil and they replaced some seals most likely they seen grease and oil on the transfer case and assumed it was leaking from the leaking engine that is directly above it even if you dont use the four wheel drive I would still sugest getting that fixed because the axles still turn inside there and you dont want those bearings drying up and going bad

Jan 25, 2013 | 2004 Hyundai Santa Fe

1 Answer

No power to fuel pump for a 89 nissan sentra


Hi Gresse, Have the fuel pump relay checked for operation and also check the fuse. Sometimes these vehicles are fitted with an anti theft device which may remain dormant for years and suddenly begin working for no apparent reason. If that is the case you will need to have the key re encoded. regards John.

Mar 29, 2012 | 1989 Nissan Sentra 4 Door

1 Answer

I have a 2003 gmc envoy the service 4wd light came on and 4wd didnt engage what do you think the the problem is


Possible the actuator on the front axle is bad! You need to see if the front drive shaft is rotating when the 4HI is engaged with out running yourselft over in the process.

There is one actuator on the axle and one on the transfer case, the one on the trnsfer case locks the drive shaft in ans out of 4HI and 4LO. The actuator on the frontaxle locsk the front drive shaft in
.

Also, try the wires going to the front actuator, they seem to break very easy and short, also the front Actuator, check it.
  1. Raise and support the truck on jackstands.
  2. Drain the transfer case.
  3. Disconnect the speedometer cable.
  4. On models equipped with the NP208 transfer case, place the case in the 4H position.
  5. Remove the skid plate and if necessary, the crossmember support.
  6. If necessary, on trucks with automatic transmission, disconnect the strut rod.
  7. Tag and unplug all electrical connections and hoses from the transfer case.
  8. On models equipped with the NP208 transfer case, remove the parking brake cable guide from the pivot on the right frame rail.
  9. Matchmark the driveshafts, disconnect them, and remove them.
  10. Disconnect the shift lever rod.
  11. Support the transfer case and remove the bolts attaching the transfer case to transmission adapter.
  12. Move the transfer case to the rear until the input shaft clears the adapter and lower the transfer case from the truck.

Sounds as though you a have a problem with the switch itself, although it could be the encoder on the transfer case , me--- I would have it checked at a transmision shop where they have a computer to check it. Every time you unhook a wire on the truck , you should have the + cable off the battery, cause this puts another code into your main computer.

Keep us uopdated.

Dec 22, 2010 | 2003 GMC Envoy

2 Answers

2002 yukon front end wont engage


2002 GMC Yukon

2002 GMC Yukon

2004 TRANSMISSION Transfer Case - NVG 149-NP (One Speed Automatic) - SUV

2004 TRANSMISSION Transfer Case - NVG 149-NP (One Speed Automatic) - SUV

TRANSFER CASE NO FRONT DRIVE

Transfer Case No Front Drive

Cause

Correction

DEFINITION: The transfer case is not delivering engine torque to the front propeller shaft.

Review the Symptoms - Transfer Case and perform the necessary inspections.

Viscous coupling faulty 1. Inspect the transfer case fluid for being black. If the fluid is

black, it is most likely caused by a viscous coupling failure.

2. Test for a faulty viscous coupling. Refer to Transfer Case

Description and Operation.

3. Disassemble the transfer case. Refer to Transfer Case

Disassemble in Transfer Case - NVG 149-NP3 Unit Repair.

4. Inspect the viscous coupling for a bulged cover. Refer to

Cleaning and Inspection in Transfer Case - NVG 149-NP3 Unit

Repair.

5. Replace the viscous coupling if it is faulty. Refer to Transfer

Case Assemble in Transfer Case - NVG 149-NP3 Unit Repair.

Planetary carrier faulty 1. Disassemble the transfer case. Refer to Transfer Case

Disassemble in Transfer Case - NVG 149-NP3 Unit Repair.

2. Inspect for faulty planetary carrier components. Refer to

Cleaning and Inspection in Transfer Case - NVG 149-NP3 Unit

Repair.

3. Replace any faulty planetary carrier components. Refer to

Transfer Case Assemble in Transfer Case - NVG 149-NP3 Unit

Repair.

Oct 19, 2010 | GMC Yukon Cars & Trucks

2 Answers

What kinda oil do you use for the transfer case


it is from gm a blue oil called automatic transfer case oin

Nov 07, 2009 | 1999 GMC Jimmy

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