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  1. #11
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    Quote Originally Posted by SSgtJinx View Post
    Calm down now!!! Colorado's haven't been out all that long. R&D takes alittle time to come out with proven modification. I would hold off as long as you can before jumping into any kinda big modification to such a new engine.
    Very good advice!
    Patrick
    Rhode Island


  2. #12
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    Oct 2006
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    SW PA.
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    I Called Edelbrock To Ask About A Header,intake Manifold,and Head The R&d Guy Told Me There Was Nothing In The Works For The I-5. What Is Up With That? Anybody Got A Line On This?

  3. #13

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    JTR already has a header for the I-5

  4. #14
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    yes ,but not for the 4x4

  5. #15

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    A CHEVY mechanic said a vortec 5300 could fit in the bay, but GM just doesn't want to do it. Is that true?

  6. #16

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    Quote Originally Posted by thehkp7m13 View Post
    A CHEVY mechanic said a vortec 5300 could fit in the bay, but GM just doesn't want to do it. Is that true?

    Well, the 2008 H3 will have a 5.3 in it. I don't see why the Colorado/Canyon shouldn't.

    http://jalopnik.com/cars/new-york-au...oes-247257.php
    ~Dan
    2005 Chevy Colorado Crew Cab ZQ8 Xtreme


  7. #17
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    That's going to be a lot of engine for a little truck!
    I wouldn't complain though.

  8. #18

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    ... bumping this old thread....

    Steve
    10 Chevy Traverse LT AWD
    02 Chevy Trailblazer LS (110K+ miles - loaded except for 4WD - WRECKED!)
    99 Chevy Cavalier LS (105K+ miles - commuter car)
    78 Chevy Suburban Silverado (454, 3/4 ton)
    62 GMC 3/4 ton Pickup (350 police interceptor)

    Remember: Search Before Posting | Fill out Your Profile & Signature
    * I've been saying for years that I was going to change my username, and I finally did.

  9. #19

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    I'm a new member to this forum and would like to ask a question about my wife's 2004 Colorado with an inline 5 (2 wheel drive automatic, z71 with 26,000 miles). She keeps getting the check engine light. We have taken it in to the dealer and they always give us a lame excuse. At first I figured she's simply not tightening the gas cap enough but I'm beginning to think it's something else now. We live in the Phoenix area so it has never been exposed to snow. I read somewhere where the Colorado has a chronic problem with the exhaust valve springs causing the check engine light to appear. Is that true? She's stopping at AutoZone on the way home work today to have them check the diagnostic code. Any help will be appreciated.

    Thanks

  10. #20

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    Quote Originally Posted by brucertl View Post
    I'm a new member to this forum and would like to ask a question about my wife's 2004 Colorado with an inline 5 (2 wheel drive automatic, z71 with 26,000 miles). She keeps getting the check engine light. We have taken it in to the dealer and they always give us a lame excuse. At first I figured she's simply not tightening the gas cap enough but I'm beginning to think it's something else now. We live in the Phoenix area so it has never been exposed to snow. I read somewhere where the Colorado has a chronic problem with the exhaust valve springs causing the check engine light to appear. Is that true? She's stopping at AutoZone on the way home work today to have them check the diagnostic code. Any help will be appreciated.

    Thanks

    Yes, the 3.5L is known to have valve and head issues. It occurs in a few trucks. GM has increased the valvetrain warranty on the heads and valves to 100,000 miles.Typical code is P0300 engine misfire.

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