Correct engine coolant temperature

[salvatore1]

Originally Posted by salvatore1

Hi,

I know this subject has been visited before, but I'll ask it again anyway. What is the correct engine temperature for the Z? Mine seems too hot for my comfort.

If the car is not moving very fast (i.e. bumper to bumper traffic) the guage starts to climb all the way to top, but then just as it touches the cross hatches a fan kicks in and the needle drops pretty quickly to the 3/4 (still too hot for my comfort). I think the radiator is ok because when the fan kicks in (not sure which one) it does start cooling down. Also, when I'm moving at a good clip on the freeway, the needle will go back to the halfway mark or lower.

I would also like to mention I tried looking at the "digital temperature" via the A/C control and it shows 113 when the guage goes all the way to the top (235) - I guess it's in celsius. After it hits that exact temperature the fan kicks in and it drops as stated above.

Any idea whats happening here?

Thanks
Sal

Guys - I think I found the reason but I'm not sure.

Do any of you know the the sequence of the two fans? When the temperature gets up to about 235 I notice the PASENGER side fan comes on religiously. But I also noticed that the DRIVER side doesn't seem to be spinning at all - does it come on at an even higher temperature or should it have been running BEFORE the passenger side fan?

Thanks,
Sal

[scottfab]

Originally Posted by salvatore1

But I also noticed that the DRIVER side doesn't seem to be spinning at all - does it come on at an even higher temperature

Comes on when AC is turned on.
You can use this to keep it on and lower the coolant temp.

[salvatore1]

Originally Posted by scottfab

Comes on when AC is turned on.
You can use this to keep it on and lower the coolant temp.

it will ONLY come on whith the A/C?

[salvatore1]

Originally Posted by scottfab

Comes on when AC is turned on.
You can use this to keep it on and lower the coolant temp.

My driver side does not come on with or without A/C turned on.

[dbriana]

Originally Posted by salvatore1

My driver side does not come on with or without A/C turned on.

It should come on with a/c, maybe a bad relay? connection?

[scottfab]

Originally Posted by salvatore1

My driver side does not come on with or without A/C turned on.

If the High presure side of the AC line never reaches 240psi then the
fan does not get told to turn on. Check to see if the AC is working.
Does it get cold? If so maybe the fan or (of fan relay) is bad?
Check connection at the fan.

[salvatore1]

Originally Posted by scottfab

If the High presure side of the AC line never reaches 240psi then the
fan does not get told to turn on. Check to see if the AC is working.
Does it get cold? If so maybe the fan or (of fan relay) is bad?
Check connection at the fan.

my A/C definitely comes on cold. I did notice the drivers side fan was hard to turn with my hand, then it felt like it broke loose and I could turn it again. I see two relay looking things together on the left side of the fan shroud - are these the two relays?

[gbrtng]

Originally Posted by salvatore1

my A/C definitely comes on cold. I did notice the drivers side fan was hard to turn with my hand, then it felt like it broke loose and I could turn it again. I see two relay looking things together on the left side of the fan shroud - are these the two relays?

There was probably a rock between the fan and the housing which will stall the fan motor and blow the fusible link at the connector at the rear of the battery.
Replace the link with the correct gauge wire or an in-line fuse - a 30 amp fuse will do the job. And yes, those are the two fan relays.

[salvatore1]

Actually I discovered the main cooling fan (drivers side) was siezed up. All I had to do was replace the motor (cost $31 at napa) - problem solved.