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3200RPM, temp gauge flat lines & engine bogs out

This is a discussion on 3200RPM, temp gauge flat lines & engine bogs out within the General Help forums, part of the LSx Technical Help Section category; Originally Posted by dipherentdesign got word back from the techs: they said it was a bad connector from the temp ...

  1. #21
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    Quote Originally Posted by dipherentdesign
    got word back from the techs: they said it was a bad connector from the temp gauge to the engine. also said i was low on coolant sweet, hope it's nothing more. still I should get that 160 t-stat though. I'm sure i can bolt that up though.
    Then explain the engine boggin down due a loose temp sending unit to me please....If you have a stuck tstat=air bubble...and the water pump gets a taste of that air bubble all of a sudden...yeah you will feel the reaction....loss of pressure will have a sudden effect on your entire spinner assembly....

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    Detailing + Design third_shift|studios's Avatar
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    just talked to them-I'm not fluent enough on the way an engine reacts to sensor flaws, but they did drive it and it works fine now. they said that the broken sensor caused the engine's ECM to freak out and it thought it was negative 32° all of a sudden which caused the hicup.

    They did check my tstat and said it was fine.

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    OK....that makes sense...

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    that actually means a lot that you said so

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    Thought it might be the ECT, and sure the PCM uses it's values to control things - wonder why it didn't throw an immediate/even flashing SES light?

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    That was my thought also...if the PCM was going nutts a guy would get an alarm....and he wasnt...that is why I suspected a stuck tstat and a air bubble...

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    oh, i unplugged my SES light a long time ago.

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    ok,

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    Gotta be a code for that, maybe it's one of those it needs to see "X" amount of times before setting? Anyways, glad all is OK now.

  10. #30
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    Quote Originally Posted by 2001NBMZ28
    Gotta be a code for that, maybe it's one of those it needs to see "X" amount of times before setting? Anyways, glad all is OK now.
    i think it is, its considered a missfire. which it has to happen a few times before it throws a code. i had arcing plug wires on my truck and it would miss and hiccup all the time and it didnt throw a code till about the 4th time it did it within the same cycle.

  11. #31
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    i have seen more than one vehicle with rodent chewed harnesses so i would check that first; also your car is now 6 years old way past the reccomended time to replace youre hoses;are they original; are they soft,mushy feeling. if so, it is possible as the rpms climb and youre water pump is sucking more fluid and rad, hose is collapsing on hard accel; this might explain vehicle fine when driving easy,and temp. gauge reading inaccurate when deprived of coolant. when lettting off the gas the pump slows and hose allows coolant to flow. just a possibility you might want to check.

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