Thread: A problem that only shows up at normal temp, warmed up

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  1. #21 Re: A problem that only shows up at normal temp, warmed up 
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    i think I solved it, I added a jug of 50/50 coolant..... run fine for an hour... no problem then started issues... found a leak at the thermostat housing, and a whooper sized patty of rtv i don't know why I haven't noticed it before so tomorrow i'm going get a 180 thermostat/o-ring/ and a new temp sensor and see where I stand because it's never showed hot before (I got the Idea to put water in to it from the what is kr thread)

    I'll let you know
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  2. #22 Re: A problem that only shows up at normal temp, warmed up 
    I live here. Slick2500's Avatar
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    Isn't it weird that a bad temp sensor can cause misfires.
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower
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  3. #23 Re: A problem that only shows up at normal temp, warmed up 
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    Quote Originally Posted by slick2500 View Post
    Isn't it weird that a bad temp sensor can cause misfires.
    I don't know if the temp sensor is bad or not but before showed no signs of overheating, never got to past the 1st 1/4 mar
    I but I discovered a leak so maybe it has been overheating and I just didn't know, hell Idk really just find it strange that I haven't had a problem since I've been on top of it making sure theres enough coolant in it.
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  4. #24 Re: A problem that only shows up at normal temp, warmed up 
    I live here. Slick2500's Avatar
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    The engine temp sensor on these engines is kinda retarded.
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower
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  5. #25 Re: A problem that only shows up at normal temp, warmed up 
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    Okay I've put with 180 stat and n oring. Also new temp sensor
    The temp for the dash was bad
    Noticed the fans wasn't turning on as long as i keep moving im good

    I gotta figure out why
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  6. #26 Re: A problem that only shows up at normal temp, warmed up 
    Killa Bee Scottydoggs's Avatar
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    fans dont come on till the engine temps hits 212 deg's. so if its running under 212 they wont come on.

    my fans hardly ever come on. i have to sit in traffic for a while for them to come on.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  7. #27 Re: A problem that only shows up at normal temp, warmed up 
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    Question, How hard does the upper rad hose get on these cars? seems very firm, not swollen but frim
    when I run with the cap off no bubbles come up in the radiator, trying to see if I have a blown headgasket without having a block tester.

    all my problems seem to tied to heat.

    on the gauge the temp doesn't stay still moves 20-40 degrees over a few mins(4 notches)
    i have a 180 stat, using green autozone coolant
    Last edited by pinky; 01-02-2014 at 10:14 AM.
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  8. #28 Re: A problem that only shows up at normal temp, warmed up 
    Killa Bee Scottydoggs's Avatar
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    if the cap is open there should be no pressure in the upper hose, it should be soft. like you can squeeze it and pinch it off.

    maybe the rad is clogged.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  9. #29 Re: A problem that only shows up at normal temp, warmed up 
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    Quote Originally Posted by Scottydoggs View Post
    if the cap is open there should be no pressure in the upper hose, it should be soft. like you can squeeze it and pinch it off.

    maybe the rad is clogged.
    sorry then it's off its soft, but when the rad cap is on and driven it gets hard

    btw thanks for all the help
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  10. #30 Re: A problem that only shows up at normal temp, warmed up 
    Killa Bee Scottydoggs's Avatar
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    when hot the upper hose will get rather firm with the cap on.

    if its rock hard and feels like its gonna burst, theres a problem.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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