1997 Chevy Cavalier runnning hotter than normal at idle

Tiny
WOODMCH0
  • MEMBER
  • 1997 CHEVROLET CAVALIER
1. Chevy cavalier z24 2.4L
2. 176,000
3. Stick Shift
4. Strange sounds or smells - N/A
5. Fluid leaks - N/A
6. Past repair history - radiator, coolant temp. Sensor, coolant hoses, thermostat, replaced.

1. What is the normal oreating temp at idle and running?

2. Temp gauge is running above 195 at idle halfway at the next mark before the fan kicks on. The fan kicks off before it reaches the 195 mark. What else could be making the temp run hotter than normal?

3. Because of the hotter temp I belive that my NOx our putting at hot according to info I found on the net. I can not pass smog (CA) because my NOx is at 599 PPM and the max level is like 457 PPM. What else could be making the NOx run high?

i would first like to get the temp down, which I think might help with the NOx. Is this correct?
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Wednesday, October 17th, 2007 AT 7:20 PM

1 Reply

Tiny
CHEVYII
  • MEMBER
Try a coolant pressure test to see if you have a leak or head gasket failure, if coolant enters the combustion chamber it will change your emission reading big time

start there and let us know
jim
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Thursday, October 18th, 2007 AT 3:28 PM

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