Question about 2003 Chevrolet Silverado 1500

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How do you get the plug wires off to change your plugs on a 2003 silverado?

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If you are having a difficult time getting your plug wires off, you may need to just put a new set of wires on. Over time these plugs are under a lot of heat. Which will in turn shrink up the metal brads underneath the boots.

Posted on Jul 05, 2010


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change plugs, air filter if dirty, change fuel filter, check and replace spark plug boots if bad on coil over plug, to do this you have to check resistance of the boot. if has wires check plug wires.

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2 Answers

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Jan 28, 2010 | 2003 Chevrolet Silverado 1500

2 Answers

How do you tune up a 2003 chevrolet silverado ls extra cab 5.3 litre engine

Start with air filter, spark plugs, and wires. Is it having any problems like rough idle, hard start ect?

Jan 08, 2010 | 2003 Chevrolet Silverado 1500

2 Answers

Is there a wiring harness for the trailer brake control to be wired into from the factory If so what are the color codes and where do I find these wires If not do i have to wire these to the plug myself....

most new trailer brake units dont splice into the lines anymore they have vehicle specific plug that connects in line with brake harness under dash or under hood

Oct 24, 2009 | Chevrolet Silverado 1500 Cars & Trucks

1 Answer

What is needed for a tune up for a 2003 chevy silverado 1500

A professional Tune Up will Check your mileage to see what Chevy reccomends.They have diagnostic tools to check and adjust the Engine back to specs.You can change the basics ...Plugs,Wires,Cap..ect. (if electonic ignition and injectors let the shop do it).There are many Polution Controls,and electronics that have made the DIY not practical anymore.Good Luck.

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1 Answer

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1 Answer

2003 Silverado heater blower switch

I had this same problem on my 2003 Chevy Silverado. It is the resistor pack that is bad. Not the switch or the knob that you turn. It is loacated on the passanger side underneeth the glove box. You have to take a cover off to replace it. This is a dealer item, so you will have to get it from a GM dealer parts dept. You will also have to replace the plug that goes to it as it will be overheated. The resistor pack was about 69.00 but the plug was outrageus about 160.00. I chose not to use the plug.
Soldered on some wires directly to the resistor pack and then soldered them to the wires on the truck. Good Luck

Jul 29, 2008 | 2002 Chevrolet Silverado 1500HD

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