temp gauge

Asked by Jul 06, 2010 at 02:57 PM about the 1995 Chevrolet Camaro Z28

Question type: Maintenance & Repair

my temp gauge goes up and down ,when i stop it goes up to 240ish and as soon as i start moving it drops quickly to 180 i have done a flush i changed the thermostat and put in a new coolant sensor.
none of these seem to make a difference i know or at least think that it is not really getting that hot  but it makes me uneasy.
is there any one that might know what is going on.
thank you

4 Answers

235

Have you made sure that the fan itself is working? Sounds like there is no air moving until the car moves.

like other post said check your clutch fan,or do you have 2 electric fans,if so they may not be comeing on,they work off a scensor,also run your AC on max even on low speed the fans will kick on if the scensor is bad,they will run all the time this way,just a point of view,is your water pump leaking coolent,also it could just be a bad guadge,also it has 2 temp scensors,1 for the computer & 1 for the temp guadge.

thank you yes the fans are coming on i did check that with the parts guy the water pump ? could that be the problem my son said something about that yesterday. i do have a low coolant light that comes on then goes off from time to time , is that on the bottom of the coolant bottle. i have had the camaro for about 3 weeks just figuring it out. thank you for your time

6,435

did u bleed out all the air with the air bleeders(hex bolt 8mm? located on high point on thermostat housing? ) before closing up the radiator? it could have some air bubbles. bleeder should be loosened abit to let the air out running engine / fill coolant and closed when it starts to spurt coolant. did u do it?

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