Question about 2003 Chevrolet Suburban 1500

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My 2003 burb 1500 is making noises and bogging down, the service 4wd light is coming on, what is the cost effective way of fixing it?

I was jus wondering if this is enough info for you to go off of, I havent takin it in to the dealer.

Posted by Anonymous on


6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 1224 Answers

SOURCE: 99 silverado 4wd went out... transfer case?

a little tip a friend gave me in unlocking the 4wd drive on ramps or hill and then put in neutral let roll back a foot put in park and then let off the 4wd
when in 4wd the hubs get a little heated cause they need greased so they stick into position making it hard to come out of 4wd this which i spoke of i got stuck in the senerio where i almost drove home in 4wd from 300 miles away but i called my friend he told me bought this and so i thought it could help you

your hubs just locked up on you your bearings are going to need to be packed again this is normal for this


Posted on Dec 06, 2008

  • 460 Answers

SOURCE: 2000 silverado z71 service 4 wheel drive light on/off

The problem is with the front actuator.Its flashing in the dash lights because is not functioning properly.Replace actuator and fix problem.Its a 4 or 3 wire screw in plug in front axle,,

Posted on Mar 27, 2009

  • 3854 Answers

SOURCE: 2003 chevy suburban front axle noise

Worn side bearings is where the noise is coming from and might as well do both sides, I used replace them in about 2-4 hours, depending on where Murphy happened to be. Disconnect both side inner CV joint, front prop shaft and the 4X4 actuator line. If you want to drop the front pumpken. Not sure if you have enough room if you want to change the bearing without removing the pumpken from the frame. You should see when you disconnect the CV shaft.

The front diffs are toys compared to the rear, if you use auto4wd too much there are bearings in your tranfer case that are similar to the side bearings in the front diff. In both appearance and durability and soon you'll replace those too.

Good luck and keep me posted.

Posted on May 26, 2009

  • 14036 Answers

SOURCE: 2003 chevy silverado 2500hd 4wd makes grinding

sound like the shift motor or shift gear in transfer case that makes it go into 4WD.sound like gear damage or worn

Posted on Jan 01, 2010

  • 8 Answers

SOURCE: 2003 silverado 4x4 pickup,4wd not working ,service

Several things could cause this since it is auto 4wd and controlled by a COMPUTER! Start the simplest, cheapest troubleshooting first; the electrical and computer system contact plugs and points.
1. it could be cracked solder connections inside the push button switch - try to re-solder or replace the switch.
2. possibly the encoder motor is bad. It is on the side of the Tcase and turns a shaft to shift the case. - try getting one from a scrapyard and swap it, much cheaper than new.
3. The computer module failed, or the contact from the plug to the plug pins is corroded. - first try to unplug and plug back in a few times to make a good contact. if that fails to work, get a used one from the scrapyard and swap it ($50 compared to a new one $500!) Get some cleaning\lube spray from Radio shack for computer terminals to keep from corroding.
4. It could be that you just have a bad connection in the 4wd wiring system. That was my case, it was just the plug connection at the computer module and has been working ever since, and now I have a spare computer module sitting on the workbench.

The computer module is the biggest pain to get to. It is buried in the dash behind the headlight and push button 4wd switch. Good luck!

Posted on Jul 05, 2010

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