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should this hose have clamps on each end?

This is a discussion on should this hose have clamps on each end? within the General Help forums, part of the LSx Technical Help Section category; 98 camaro z28 automatic ls1 just got a "vacuum leak" fixed. car is running fine, but the SES light is ...

  1. #1
    Junior Member 98z28duval's Avatar
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    should this hose have clamps on each end?

    98 camaro z28 automatic ls1

    just got a "vacuum leak" fixed. car is running fine, but the SES light is throwing the P0420 code. and i am thinking its due to this hose. i am by no means a mechanic but shouldnt this hose be clamped at each end? this may explain the P0420 code, the cat is fine. car has 72k miles on it, runs like a champ!

    i am heading to autozone to by clamps, but just wanted to run this by you guys here. this hose should have clamps correct? there are no clamps on either end of it. one end goes to tb and other end goes into head cover, what IS this hose?




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    2004 HEAD/CAM CTS-V 9t8z28's Avatar
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    No, it does not need a clamp

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    Mine doesn't have clamps on those...you sure the drivers side cat is OK?

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    Junior Member 98z28duval's Avatar
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    Quote Originally Posted by 2001NBMZ28 View Post
    Mine doesn't have clamps on those...you sure the drivers side cat is OK?
    thanks for the replies guys! is there a quick easy way/method to check the cats? this is my first LS1, i am by no means a mechanic, but i'm not brain dead, just verrrry new to this engine, forgive me if i sound novice! lol.
    driving to atlanta next weekend and want to make sure everything is ok before i leave Florida on a 360 mile trip.

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    P0420 is the drivers side cat inefficiency code - you can go to gearchatter.com and look up the description/diagnostics for your year.

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    Junior Member 98z28duval's Avatar
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    thanks again!

    Quote Originally Posted by 2001NBMZ28 View Post
    P0420 is the drivers side cat inefficiency code - you can go to gearchatter.com and look up the description/diagnostics for your year.

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    Junior Member 98z28duval's Avatar
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    should i take the car into a shop this week? how much of this has to do with emissions and how much has to do with actual drive ability of the car?

    i had autozone reset the SES and it is off now. should i just wait and see if it comes back on?

    Quote Originally Posted by 2001NBMZ28 View Post
    P0420 is the drivers side cat inefficiency code - you can go to gearchatter.com and look up the description/diagnostics for your year.

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    Well it's an emissions code for sure, probably not a problem for your trip unless it's rattling/coming apart inside or clogged. Give it some cold starts and see if it returns, the gearchatter site should tell you how many cycles it'll take to set the MIL again.

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    Junior Member 98z28duval's Avatar
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    i had been using mid grade gas. filled the car with premium a while ago, drove it down I-95 to around st augustine and back and then around the westside for a while, turned it off and restarted quite a few times during the ride, the light hasn't came back on (yet), going to watch it the next few days though!
    will start it again tonight once it cools down, drive and see if anything changes.


    Quote Originally Posted by 2001NBMZ28 View Post
    Well it's an emissions code for sure, probably not a problem for your trip unless it's rattling/coming apart inside or clogged. Give it some cold starts and see if it returns, the gearchatter site should tell you how many cycles it'll take to set the MIL again.

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