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Wrong Thermostat

This is a discussion on Wrong Thermostat within the External Engine forums, part of the LSx Technical Help Section category; Hey guys, I bought a 160% T-stat a while back and finally got around to installing it today. The fuggen ...

  1. #1
    Something Diabolical... chuckie669's Avatar
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    2000 C5 Torch Red

    Wrong Thermostat

    Hey guys,
    I bought a 160% T-stat a while back and finally got around to installing it today. The fuggen thing does not fit into the block, wtf? Ordered x 98-02 LS1 160 Degree Thermostat (1014) . Can anyone tell me which one I got. The tech line is closed on saturday and I don't think I can drive the car back into the garage.

    I took the old one out and the t-stat fell right out, so I tossed it into the corner. RTV'd the gasket into the new one and when installing the outer sides are too wide to fit into the hole. I did notice theres an additional tab on the new one, but according to installuniversity there was a push pin to remove. Mine did not have that. Am I an idiot and can't push it in or what? Any help is appreciated.

  2. #2
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    New one looks to be a later style... matches what is in our '02.

  3. #3
    Something Diabolical... chuckie669's Avatar
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    But the hole isn't large enough to insert the new one. I didn't realize there was a difference. ws6store only lists the one.

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    Believe it has to do with the style of the water pump -- if you do a search you will find that other members have had the same problem.

    --------------------------------------

    Here is one: broke my 160 t stat
    Last edited by pajeff02; 06-20-2009 at 03:19 PM. Reason: Found prior thread.

  5. #5
    That guy thearborbarber's Avatar
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    IF you have a replacement water pump that has the new style t-stat. Then you will need a t-stat for a 2004 or newer LS engine.

  6. #6
    Something Diabolical... chuckie669's Avatar
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    Thanks a bunch for the info and link. Well that's a bummer, and I guess totally my fault for ordering the wrong one. Maybe I can suggest to the sites that sell these to make the 04 style an optional component since apparently switching to new style water pumps is fairly common. Would've been a pretty easy check beforehand had I known (+ $40 price difference).

    I'll check and see if maybe the store will be leniant with a noob and help me out.


    Oh, and thearborbarbor. I should be done with your stuff soon and will send it back to you. Your a topnotch guy on here.

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