Question about ASUS Z71 (90-N9Q1G1000) (90N9Q1G1000) CD-RW/DVD-ROM (Combo) Burner
My "new to me" 2004 Chevy Silverado Z71, service 4X4 light comes on......
Everything seems fine, and when 4X4 operation, seems fine. It has 36,500 miles on it.....I checked with a cheap OBD2 Reader, and it posted no trouble codes at all. I hate to take it in to the dealer!! Can anyone help??
I've had this problem twice with my 2004 1500 Silverado Z71, approximately 65000 miles. The first time the Chevy dealer told me the switch was bad, but it always worked when I hit the button. They said it will probably just quit working one day. Well, that one day I was going about 60 mph and it automatically switched into 4 Low. Oops! Luckily nothing broke. The next day they put in a new switch for $150. A few months later the light came on again and I took it in right away. This time it was a bad encoder motor sensor. They replaced this for $350 and also put in a new switch just in case it was bad too.
Posted on Nov 08, 2008
I have a 2004 chevy silverado 2500 with 103000 mile ( i know that is a lot) but when I first bought the truck in oct 08 a month later it was in the shop having the encoder motor replaced. 2 months ago another shop completely re-built the transfer case, when they pulled the plug it was completely full of metal shavings! And then a month later the 4 wheel drive light has come on again. what the heck should I do????? It still switches into 4 wheel but it seems now i am getting terrible gas mileage like its binding up somewhere and going to ruin my tranny now too? Any suggestions
Posted on Jan 14, 2010
I have an 03 Silverado, Service 4WD Light on. The 1st time the mice chewed the wires by the transfer case. Fixed the problem once the wires were fixed. The 2nd time I checked all fuses, OK, checked all wiring OK, getting power everywhere. I pulled the 4wd switch out, popped it apart since many guys suggested the connector bread and to put a drop of solder on it. Not my problem all my lights were burned so my switch was fried. I bought a new switch $88.00 and nothing worked so I disconnected the battery for 15 minutes and it reset the system and everything is OK. So try the battery disconnect first and save some money but in my case my switch was fried anyway. Good Luck
Posted on Sep 02, 2009
There is probably nothing wrong with it at all mine comes on every once in a while my dealer told me to check all the fluids in front case and transfere case put it in 4wd and run it for 10 minutes and then the thing goes off . if it doesnt look in your owners manual and it tells you how to reset light. if it comes right back on then you have a problem. hope this helps
Posted on Apr 22, 2009
I also took my truck to the dealership and they did the encoder motor fix. It did the same thing a few weeks later. I am not in town right now so I'm not going to do anything about it other than I did pull the 4x4 fuse out of the dash so it can't go into four wheel drive arbitrarily. When I get the truck back in town I will take it back to the dealership and make them replace the switch for free, since I asked them to do that fix FIRST before charging me a bunch of money for nothing. My husband was the one that took it up there that time and he wouldn't listen to me when I said I had researched this already ;-) I put that one down on the calendar (it doesn't happen very often that I'm right)!
Posted on Nov 08, 2008
Take it to autozone first and have them check it with their tester. It's free of charge. Then go from there. Your ODB2 system analyzer may be cheap enough that it missed the code all together.
However if you bought it recently i would complain to the dealership and see if they can work in an arrangement to do a proper diagnostic on the vehicle for free. They might even knock some of the price off for the repair if you have recently purchased the truck within the past few months.
Posted on Feb 02, 2008
I had the same issue with the `service four wheel drive light illuminated' what is happening is there is a magnetic pickup inside the encoder motor housing on the left side of the transfer case looking aft. remove the motor, split the case halves. make sure when you remove the case halves that you do not lose the 2 washers inside. also when you have the case halves seperated mark the gears inside with red paint or grease pencil to install back in there original position. this component I beleive the name for is 4x4 encoder shift switch. part at GM sells for about $80.00 instead of spending $400.00 for a new motor. If you are a novice off road person the motor and gears last a long time. good luck in your repairs
Posted on Dec 29, 2011
2004,5.3,Z71,409,000 miles, Chevy crate engine @270,000 miles, Chevy tranny @370,000 miles, always have had problems with 4 wheel drive unit, usually after using it in 4x4 for about two weeks then problem will clear up. Now at start-up lights sequence and might land on any drive mode even 4L. I just put it in neutral and push the 2H button and it transfer back to 2H. Service 4 wheel light on, just reset. I think Chevy just ignored an obvious problem and let it fall on the consumer. Hope this helps, will drive it till I have to haul it to the shop.
Posted on Oct 01, 2013
1999 silverado,152,000 miles.3rd fuel pump,4th 4x4 dash switch,3rd transfer case motor.Come on GM you know you have these problems take care of us poor future buyers(not).Going back to FORD at least they man up when they know they have a problem.Ford has covered things i never expected them to.Sent checks long after i got rid of the vehicles.
Posted on Jan 25, 2014
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Posted on Jan 02, 2017
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