Question about 2003 GMC Sierra 1500

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Looking to do my own maintenance on 2003 GMC 1500 4.8L Sierra. Has 43K I have basic skills I am looking for something that says do this at this time. Is Chitons Online okay or something else.

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I wouldnt even worry about a fuel filter at 43 thousad the factory filter is rated at 100k it would more be of a hassle and expense, just keep it lubed and change your fluids reutinly. trans. front/rear diffs, front tranfer case, greaseing all your joints and bushings go a long way to increase your vechiles overall longevity.

Posted on Jul 02, 2009

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At this point your truck requires no maint except a fuel filter and air filter is it hasn't already been done, your new truck owners manual is your best guide to maint requirements on the truck

Posted on Jun 30, 2009

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As for Maintenance the basics are simply Every 3000 kilometers or six months whatever comes first. Lube Oil Filter. So change the oil. Grease the front end Ball Joints, Tie Rod ends linkages. and so on. Check the drive shaft. factory ball joints tend not to be serviceable, however most after market U-Joints need to be greased, provided your truck has had drive shaft work. if not don't worry about it. but check the drive shaft by lifting or pushing up at the U joints also gripping the transmission yoke and drive shaft, checking for play in either counter clockwise or clockwise direction. IF there is play replace U joint. Replace the oil filter. If this is your first service on the truck remove the air filter if it's dirty replace it. if it looks questionable replace it. If it looks ok, but your not sure. Take a flash light on the inside. If you can see light through the mesh and paper it's still ok.
Again if this is your first service check the power steering fluid level and if low top up with factory recommended fluid. ATF Dot 3 I think, but double check that. Check transmission oil. and also remove the plug at the differential. Fluid should be right up to that fill hole. Level with it. if it's below that top it up. The biggest mistake people make is leaving these fluids down low, or over looking them. Your transmission and Differential require oil to make sure they reduce the friction and heat that forms at the gears due to the pressure they are under.

While you are doing a service. Look at your brake lines and fuel lines. Knowing that there ok, or on there way out a head of time is a good way to prevent having a problem when you really don't need it. Check your brake fluid, as well. and never leave the cap off the brake fluid for a period of time. because brake fluid is hydroscopic meaning it absorbs moisture from the air. Moisture will break down the brake fluids ability to lubricate the inside of your brake lines and brake componets. Check your exhaust brackets and fuel tank brackets, for rust and cracks. Minor rust, no big deal, but heavy rust spots is a sign of weak metal.

Hopefully this helps.

Posted on Aug 23, 2009

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