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96 Z28 heat probs. help??

This is a discussion on 96 Z28 heat probs. help?? within the LT1 forums, part of the Vehicle Specific category; i have a 96 z28 its getting hott not low on coolant no lights on dash both fans kick on ...

  1. #1
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    1996 Z28

    96 Z28 heat probs. help??

    i have a 96 z28 its getting hott not low on coolant no lights on dash both fans kick on at 180 but if i set still for a few mins.. it starts to get really hott what could be the prob?

    After i take off and get some speed up it cools back down but setting still or ideling around it gets way to hott help?

  2. #2
    Senior Member 5.0THIS's Avatar
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    95 Z28

    How hot is "really hot"?

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    12.36@109 Red on Red WS6's Avatar
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    Open the coolent bleeders just incase of trapped air in the system. If that don't work replace the thermostat.

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    Pathelogical Liar BlackLT1Z28's Avatar
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    94 Camaro Z28

    I think they all do that. If you sit in traffic for awhile, engine temp will go up. That's when I blast the heater. But when you start going, the water pump starts going faster as well, hence, the cool down.

  5. #5
    Member camarolvr69's Avatar
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    if it gets in the 240-260 range i would definitely not drive it too much...could be bad water pump, radiator cap, or a leak somewhere in your coolant system; (ie. hole in radiator-check for coolant leak).

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    I have and i have no leaks, fresh coolent and a new thermostat. but it still runs up in the 260 sitting still i also have a new radiator cap and water pump could it be like a head gasket or something?

  7. #7
    Pathelogical Liar BlackLT1Z28's Avatar
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    Quote Originally Posted by 96z28man View Post
    I have and i have no leaks, fresh coolent and a new thermostat. but it still runs up in the 260 sitting still i also have a new radiator cap and water pump could it be like a head gasket or something?
    Did you bleed the air after putting in the coolant? And did you flush the radiator properly after draining it?

  8. #8
    Member camarolvr69's Avatar
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    you know it could be as simple as your engine temp sensor. i replaced mine recently($25). the engine temp sensor is in the block right under the driver side exhaust manifold. if you open the hood does the heat from the motor feel excessive? if it feels normal i would have the temp checked with a handheld.

  9. #9
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    dude mine does the same thing...mine will be boiling into the overflow like crazy......and i cant hear the fans kick on....i think somethings wrong with my fans....no blown fuse...i dunno either

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