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

6 Answers

255

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

7,405

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?

10

Regarding the 1988 Camaro IROC Z28, if the car is not moving can't cool propertly. These cars were not made to sit in traffic, especially with the V8 305 or 350 engines. There is a plastic air dam, under the car that forces air up into the engine bay while the car is moving. The electric fans kick in when the engine is about to over heat. For 1988 there are two fans... one that turns on 215/218F and the second that turns on at 238F. If you are running the AC on a hot day stuck in traffic you'll going to over heat even with both fans. In mine, I wired LED lights to show me when the fans are given power, I also added over ride switches and relays to manually control each fan from inside the car. Not everyone will agree, but I also put in a lower temp thermostat switch/valve in mine. Factory is 195F, in mine I run a 160F. That allows warm/hot water to get pumped through the radiator earlier. The higher temp factory is so the engine will put off less emissions, I believe the engine will last longer running cooler. I made these mods to my car at about 150K miles when I started having major over heating problems, I always stopped ASAP when I could sense the car was too hot... the car is now at 263K original miles, engine does burn about quart of oil between oil changes (every 3K), I've started doing oil changes every 2K and topping oil off every 500 miles. Best of luck.

1 of 1 people found this helpful.

If you have tried all of those things it could be as simple as the radiator cap is worn out. When you turn your car off pop your hood, and check if there's condensation around the radiator cap if so it's a simple fix.

Your Answer

Add photo

Related Questions

  • temp gauge 6 answers

    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. non...

    1995 Chevrolet Camaro Z28

    -

    Maintenance & Repair

  • Temp Gauge Stuck 8 answers

    I've had temp gauge issues for the past two days (which coincides with -34C weather). Yesterday when I started my car after work, the temp gauge was already at the halfway mark. On the drive home, it ...

    2004 Chevrolet Cavalier Base

    -

    Maintenance & Repair

  • coolant temp gage problem 1 answer

    i have just purchase a 1988 camaro iroz z and have a problem with the temp gage. it is pinned up above the 260 it seems like it is stuck. The car was sitting for a long time. the car sound fine and ru...

    1988 Chevrolet Camaro IROC Z

    -

    Maintenance & Repair

  • Creeping temp 2 answers

    Coolant temp creeps up,replaced waterpump,radiator,heater core,thermostat,belt and still continues to creep.I was told the ports in the heads could be closing up,no clue.I have bled the system.Im at...

    1997 Chevrolet Camaro Base

    -

    Maintenance & Repair

  • temp guage not working

    I have an 89 chevy camaro and the temp gauge inside the car is not working. fan does not turn on cause i feel the guage isnt showing telling the computer to turn it on. I have replaced the sensor an...

    1989 Chevrolet Camaro RS

    -

    Maintenance & Repair

Camaro

Looking for a Used Camaro in your area?

CarGurus has 31,417 nationwide Camaro listings starting at $2,400.

ZIP:

Search Chevrolet Camaro Questions

Chevrolet Camaro Experts

#1 dandyoun
dandyoun
Reputation 1,740
#2 carGrrl
carGrrl
Reputation 1,170
#3 Tom Demyan
Tom Demyan
Reputation 1,080
View All

Related Models For Sale

Used Ford Mustang
696 Great Deals out of 44,783 listings starting at $1,500
Used Chevrolet Corvette
221 Great Deals out of 22,190 listings starting at $3,850
Used Ford F-150
2,150 Great Deals out of 193,915 listings starting at $290
Used Chevrolet Impala
600 Great Deals out of 35,644 listings starting at $899
Used BMW 3 Series
1,024 Great Deals out of 31,544 listings starting at $1,000
Used Jeep Wrangler
268 Great Deals out of 15,899 listings starting at $3,200
Used Pontiac Firebird
13 Great Deals out of 756 listings starting at $2,995
Used Chevrolet Tahoe
582 Great Deals out of 33,058 listings starting at $1,500
Used Jeep Grand Cherokee
1,081 Great Deals out of 73,543 listings starting at $1,200
Used Honda Accord
1,055 Great Deals out of 68,303 listings starting at $1,000

Used Cars For Sale

2015 Chevrolet Camaro Z28 For Sale
40 listings starting at $41,900
2014 Chevrolet Camaro Z28 For Sale
14 listings starting at $39,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.