2005 Chevy Colorado Tuneup


Old 12-30-08, 08:14 AM
Thread Starter
Join Date: Dec 2007
Posts: 3
Question 2005 Chevy Colorado Tuneup

Have a 2005 with a 3500 Vortec engine that needs a tuneup.
Have never done one or worked on a vortec engine. How do you change the spark plugs?????Where are they?????Need step by step instructions if possible...
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Old 01-18-09, 06:57 PM
Join Date: Dec 2008
Location: central ny
Posts: 5
it is fairly easy, I took off the air intake box on the top of the engine it's just a couple of clamps. Then loosen the bolt on the spark plug module and then pull staight up on it and you will see the spark plug. you will need a long extension to get to the plugs. The hardest plug is the first one, because there is a wiring harness in the way but with a little time you can get it. I put AC Delco irdium plugs for mine and I love them. I did some research on plugs and irdium plugs are highly recommended. If you look on coloradofans.com you can find step by step with pictures on how to change them.

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