Question on Engine Temp

[chesnut]

Temp update

June driving on I45 stop'n'go traffic in Houston area - '92 turned off the A/C and regular temp gauge was in the "danger zone".

Since then:
1) installed Marc's chip to turn on fans at 205
2) replaced radiator with 2 row DeWitt's radiator

Short test drive this morning went well. Ambient temp was 88 degrees.
- Idled with A/C on while filing up with gas & temp got up to 230
- Drove back home
- Idle for 15 minutes in driveway with A/C on and temp digital gauge showed 240

Checked top of radiator with temp gun and it showed 140 degrees.

Is there an easy way to tell if the passenger side radiator fan is on? I'm having a hard to seeing the fan blades to tell if they're moving or not.

Thanks,

Gary
....

[HAWAIIZR-1]

Originally Posted by chesnut

Temp update

June driving on I45 stop'n'go traffic in Houston area - '92 turned off the A/C and regular temp gauge was in the "danger zone".

Since then:
1) installed Marc's chip to turn on fans at 205
2) replaced radiator with 2 row DeWitt's radiator

Short test drive this morning went well. Ambient temp was 88 degrees.
- Idled with A/C on while filing up with gas & temp got up to 230
- Drove back home
- Idle for 15 minutes in driveway with A/C on and temp digital gauge showed 240

Checked top of radiator with temp gun and it showed 140 degrees.

Is there an easy way to tell if the passenger side radiator fan is on? I'm having a hard to seeing the fan blades to tell if they're moving or not.

Thanks,

Gary
....

What about if you keep your AC off then does your fans work and temps stays
down? If so, you have same issue as I do with AC pressure switch or high pressure.

https://www.zr1.net/forum/showthread.php?t=33274