Service 4 wheel drive message

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ndrandyman's picture
ndrandyman
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Service 4 wheel drive message

I have a 2004 Chevy 1500 4x4 crew cab and the sevice 4 wheel drive message has come a couple times while driving it.  Shut off the motor and restart it and the message is gone.  Was going to take it to the dealer to get checked out but thought  I'd check on here first to see if anyone else has had this happen and if there was a easy fix.  That hourly rate at the shop is steep and I'm hoping to save a few bucks.     Randy

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Joined: Monday, February 13, 2006 - 3:56pm

That doesn't sound good at all.  Does the 4 wheel drive have a hum to it when you engage it?

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Doesn't seem to change anything.  I have never tried to engage the 4 wheel drive when the lite is on.  Maybe it has something to do with that?  It'll just pop on while driving down the road.

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Joined: Wednesday, April 16, 2008 - 11:12am

mine will flash that every now and then, but just when i start the pick up and then dissapears right a way. If everything works and everything is acting normal, i wouldnt worry about it to much.

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Joined: Monday, February 13, 2006 - 3:56pm

Those damn check engine lights really suck.  I have had more than my fair share.  Might as well just take it in.

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I have a 2003 1500 4X4 and have had the same problem. I've had it at the dealer and another service shop and nothing. They have run the codes, serviced the 4x4, checked all fitings/electrical connections/etc and still nothing. Light was on most of last winter and had to run in 4WD to work with all of the snow some mornings, but never let me down. I'll be looking for answers on here as well..... Good luck!

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I have a feeling that when I take it in they are to tell me it could be this, or that, or maybe this thing.  They'll just start replaceing parts and I wind up with a huge bill.  I was hoping that maybe some else had this problem and could give me an idea what it mght be.

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Joined: Monday, October 30, 2006 - 11:00pm

take a code reader to it when the lights on, if you dont have one maybe someone on here does...i have a cheap one that may work

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i've always wondered how the light can go off and a code isn't in the computer to tell you what the heck is wrong with the vehicle.  its happened to me a couple of times.  anyone got any insight into those things for me.  i have always figured if a light goes off, it must trip a code somewhere about something telling you why the light went off in the first place. 

most recently (3 weeks ago) we had a ford escape that shut off running down the road.  started.  ran a few blocks.  quit.  wouldn't start again.  towed it in.  wouldn't start that day.  but, when they went to start it the next day it started.  they drove it around.  couldn't get it to do it again.  i figured it to be a fuel issue (either pump or filter).  but, they claim no codes were tripped and they never did fix anything.  now i worry we will be driving down the road on a long trip and it will happen again. anyone?  

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Joined: Wednesday, January 29, 2003 - 12:00am

Couple things it could be,could very be the switch itself or the accuator,about a
$200 fix for either or,most often the code/codes are stored once messages are displayed.Also as your truck ages (4x4) its a good idea to  put the truck in 4x4 during the summer months,best to do when it rains as to not scuff the tires,by doing this it helps the seals from drying out.

Tim

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Tim.......... Is there a way to test either one of these parts to see which one might be bad or do I just start replacing them with new and hope i get the right one first?

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Joined: Monday, September 10, 2007 - 10:16pm

It usualy means that the switch its self is malfunctioning.  That repair should cost less than $100.  Without it you might not be able to engage or disengage your 4 wheel drive.  Have it scanned at the dealer because I think you need a tech-2 scanner(GM scanner) to read the codes.  I do not think that a normal OBD-2 with CAN is able to read the code and if it will the codes will probably just read as generic.  But you could take it to any autoparts store when the light is on and have them scan  it, they will scan it for free.  It might be worth a try.

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I've had the same issue on an 2003 Suburban I've taken it ...when I had the extended warranty...they've said it's some sensor on the 4x4 and it gets dirty or goes out....I said that's nice however you should fix it so I don;t have ot bring it in every three months...haven't had a problem since


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Give the dealer a call and tell them what's happening.  I think there's a very good chance you're not the first one with that same problem.  My daughter is a service writer for a dealership and you'd be surprised the common intermittent problems they run across.

Good luck.

"Lifes tough pilgrim, and it's even tougher if you're stupid"  --John Wayne

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Yup the tech 2 is needed as stated,dealer is what I would recommend as well,no way to tell forsure what part is needed,dignostic runs around $80 plus parts.

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espringers Said:
i've always wondered how the light can go off and a code isn't in the computer to tell you what the heck is wrong with the vehicle.  its happened to me a couple of times.  anyone got any insight into those things for me.  i have always figured if a light goes off, it must trip a code somewhere about something telling you why the light went off in the first place. 

most recently (3 weeks ago) we had a ford escape that shut off running down the road.  started.  ran a few blocks.  quit.  wouldn't start again.  towed it in.  wouldn't start that day.  but, when they went to start it the next day it started.  they drove it around.  couldn't get it to do it again.  i figured it to be a fuel issue (either pump or filter).  but, they claim no codes were tripped and they never did fix anything.  now i worry we will be driving down the road on a long trip and it will happen again. anyone?  

Sounds like moisture in the gas..   I had two co-workers within two weeks that had their vehicles act the same as you decribed your Escape did.  Both of them found out from the mechanic  they had moisture in their gas and they had filled at different stations.  Both had to drain their tanks and put in fresh gas and isopropal alcohol and their vehicles are running great.  Makes me think that there was a bad batch of gas going around for that to happen in the summer.

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Joined: Friday, April 2, 2004 - 12:00am

Guess I'll take it in and have them run  the san and go from there.  Thanks for the input guys.     Rab

bobbersinker22
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Joined: Thursday, January 25, 2007 - 3:16pm

Had the same error and it was my accuator.  It was only like $600.  Thankfully it was under warrenty at the time.

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It goes in tomorrow for the scan----hope it's not the accuator-ouch!!!

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bobbersinker22 Said:
Had the same error and it was my accuator.  It was only like $600.  Thankfully it was under warrenty at the time.

   It was probably whats called your encoder motor. That's the name for the electric motor on the transfer case that does the shifting. They're spendy.           
      The most common problem for late 90's to about 03-04 was the dash switches. They're not that spendy  and they install in 5 min or less. You do need a Tech 2 to access the automatic transfer case(ATC) codes. Most aftermarket 'code-readers' don't have the software capabilities to do so. I'm betting it's a dash switch.

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elkhunt
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Joined: Tuesday, June 10, 2008 - 8:53am

I had to replace the electronic switch in my 2000 Chevy. Pops right in, pop off the dash, unplug it and plug in the new one. Then just put the dash back in place. Only takes a few minutes. That is what was making my service 4wd light come on, haven't had a problem since I put in the new switch.

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If you're in the Grand Forks area let me know, I'm sure I can save you $$$$$$..  good reputable service at a good price.  And no, I don't get a cut.  But you're probably not near GF.


"Lifes tough pilgrim, and it's even tougher if you're stupid"  --John Wayne

beedoggs1
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Joined: Thursday, December 11, 2008 - 1:15pm

it happened in my 05 silverado, turned out to be the sensor. Apparently sensors don't like mud. Hmmmm, kinda mind blowing on a four wheel drive vehicle.

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Here is what I found out.........They did the scan and it showed the sensor for the encoder motor(?) on the transfer was acting up.  The cost of the part was $150 and since it needed to be reprogramed they  put it in, labor cost $150.   So after $300 the rig is back on the road and i'm not sure how to take this one.  It seems like a fair amount of money but it could have been worse.  Anyway "life goes on"

bigbucks&bigblocks
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Joined: Friday, September 4, 2009 - 7:51pm

I had the same problem with my 03 chevy, took it to a couple of places and no luck, then i was told to take it to capital auto repair, within 20 minutes they had it diagnosed and fixed and it was cheaper than the diagnosis at the other place

bdawgg24
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Joined: Sunday, February 1, 2009 - 9:07pm

Had the same thing happen on a 2000 1/2 ton and a 1999 3/4 ton , replaced the push button switch on the dash fixed the problem on ours, pretty sure a 2004 has the same style switch.  Just did the 99 about a week ago, switch cost around 60.00 at the local dealer.

moultree
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Joined: Friday, October 20, 2006 - 9:32am

600+ for my 4 wheel drive to get fixed 05 with 47,000 miles and this is the second time the first time it was under warranty. t.he first time a sensor was out of wack this time the motor to engage it wasn't working. UGH!

elkhunt
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Joined: Tuesday, June 10, 2008 - 8:53am

Mine is a 2000. all I had to do was replace the electronic shift button. The dash just pops off, then That module pulls out, unplug and put in the new one.

fish-finder
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Joined: Monday, June 9, 2008 - 6:55am

Had the same problem and it was the switch.

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Joined: Wednesday, November 24, 2004 - 12:00am

its a sensor - again GM engineers - why the he!! did you have to put in a push button.  Why not leave it  as a gear on the floor.   What was wrong with that?  

Still dealin with the oil burn issue - 1st step is the valve covers 2nd lifters and then entire engine -- this time I think I might have 300 miles on and its already burned 3/4 quart.   Over my life I have owned ford, chevy and dodge.   Cant wait to own a toyota!! 

 

Stay thirsty my friends

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PS - I was told that the gm dealers just cant find the problem either.  And snow - its not only the 07s -I am told  08-09-10.  Thank god obama owns the damn manufacturing  joint - as he may need to do a cash for clunker program with the chevys.

Stay thirsty my friends

moultree
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Joined: Friday, October 20, 2006 - 9:32am

Got GM to pay for 40% of the repair for my 4 wheel drive. I contacted them and told them about my issues and they agreed to pay 40%.

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Mines been going on and off since 2002.  116,000 miles later everything still works fine. Really!!

"Believe you can and you're halfway there."

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Oil burning Chevys  - next time I am buying a Toyota.  GM should of been aggressive and lifted the engineers from der @ss and kicked them out the door.

PIP4492C: Excessive Oil Consumption and/or Blue Exhaust Smoke - Inspect PCV Baffle Drain Holes and Valve Train Oil Flow - keywords cover high lifter replacement rocker - (Mar 13, 2009)

Subject: Excessive Oil Consumption and/or Blue Exhaust Smoke - Inspect PCV Baffle Drain Holes and Valve Train Oil Flow

Models: 2009 Buick Lacrosse Super, Allure Super (Canada Only)

2004-2007 Buick Rainier

2004-2009 Cadillac CTS-V

2003-2009 Cadillac Escalade

2003-2006 Chevrolet SSR

2003-2009 Chevrolet Avalanche, Corvette, Express, Silverado, Suburban, Tahoe, Trail Blazer

2006-2009 Chevrolet Impala

2006-2007 Chevrolet Monte Carlo

2003-2009 GMC Envoy, Savana, Sierra, Yukon

2003-2009 Hummer H2

2008-2009 Hummer H3

2006-2008 Pontiac Grand Prix

2008-2009 Pontiac G8

2005-2009 Saab 97x

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI (Preliminary Information).

Condition/Concern:
On rare occasions, some customers may complaint of excessive oil consumption and/or blue exhaust smoke.   Seriously – it is 2009 GMC  – wake up!  Fire your engineers.

This may be the result of over-aggressive valve lifters and/or plugged PCV baffle drain holes in the valve cover that has the PCV vacuum pipe attached to it. This may also be the result of the same PCV baffle being improperly sealed to the valve cover if this concern has occurred since the vehicle was new or shortly after this valve cover was replaced.

Recommendation/Instructions:
Important: For 2007 Full Size Trucks and Utilities with the 5.3L Engine (RPO LC9 - VIN 3), please refer to the latest version of PIP4574 for recommendations. For all others, refer to the recommendations below.

If bulletin 01-06-01-011 identifies excessive oil consumption but SI diagnosis does not isolate the cause of it, remove the valve cover that has the PCV vacuum pipe attached to it and perform the following suggestions:

1) Check for an over-aggressive lifter by monitoring oil flow at the top of each push rod with the engine at idle. It should not be necessary to raise the RPM to check for an over-aggressive lifter. Very little flow should be observed at an idle. It will be obvious if an over-aggressive lifter is present because its flow will be greatly excessive when compared with the others and a great deal of cleanup will be required. Replace any over-aggressive lifter(s) and re-evaluate the concern.

2) Inspect the PCV baffle drain holes shown below to see if they are plugged with hardened oil deposits. If they are plugged, replace the valve cover, ensure that the customer is changing their oil according to the maintenance schedule in their owner's manual, and re-evaluate the concern. Generally, this would not be a concern until several thousand miles have accumulated.

3) Inspect the PCV baffle to ensure that it is properly sealed to the valve cover by flipping it over and adding a little oil to the corner of the valve cover as shown below. The oil should stay in place as shown on the 2 outer valve covers below. If the oil drains into the PCV baffle as pointed out on the middle valve cover below, replace the valve cover. Generally, if this is the cause of the concern, it would have been present early in the life of the vehicle or shortly after valve cover replacement.

Important: If Step 2 or 3 leads to valve cover replacement, perform Step 3 on the replacement valve cover before installing it.

http://gsi.xw.gm.com/image_en_us/gif/000/002/195/2195879.gif
PCV Baffle Drain Holes Described in Step 2

http://gsi.xw.gm.com/image_en_us/gif/000/002/245/2245145.gif
PCV Baffle Comparison Described in Step 3

Stay thirsty my friends

beedoggs1
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Joined: Thursday, December 11, 2008 - 1:15pm

can you tell me what error code CO377 is? My service 4 wheel drive light has been coming on as well. My mechanic couldn't find the code meaning. Any help?

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So far since  replacing that sensor I haven't had the message show up yet.  I haven't put alot of miles on it yet but things look good.    Randy