Well, I think it is The Mark's turn to experience a flaky VLCM. This all started this past Friday, when I took it to get the annual emission test.
Car ran normal up to operating temp 174* ( I have a Riesche 170* T-stat) with the a/c on before plugging into the OBD reader at the test facility. After the test on the way home, it ran up to 230*, and the main radiator cooling fan was not running (The fan is a OEM Ford Mustang fan). The two auxiliary Spal fans I had installed were running though.
Yesterday, I started the car cold, turned the a/c on max, and the fan turned on as it should. I drove it to the car show and everything was fine. Drove it home, and it did the same thing again and the main fan turned off.
I checked for loose connections, and everything looked fine to me. Just cold started the car now, turned max a/c on, and again, everything worked as it should. I turned a/c off, and after a minute the main fan turned off. Spal fans are wired to run at 174* regardless of a/c position. Temp got to 174, and main fan turned back on with Spal fans. I turned a/c to max and set at 68*. Everything worked fine. Here's the kicker - Cabin got to 68* and the vent output slowed down as it should. I look at the radiator fan and it turned off. The Spal fans were still running. From that point on, the main radiator fan will not turn on regardless of what I do. I am letting the car cool down now, and will see if the main fan will turn on.
I bought a VLCM on ebay last night, but I have a feeling there might be something else going on here.
After the cool down, started up and switched max a/c on, and the main fan came on again. I turned it off, and after a minute, the main fan turned off as it should. Reached 174*, and main fan turned back on. This time, I left a/c off to see if it was related to the a/c function or not. After about 5 minutes, the main fan turned off. Temp started to climb, yet the main fan would not turn back on. A/C was left off the entire time.
I am calling Aric next Tuesday to set up an appointment for him to chase it down.
Car ran normal up to operating temp 174* ( I have a Riesche 170* T-stat) with the a/c on before plugging into the OBD reader at the test facility. After the test on the way home, it ran up to 230*, and the main radiator cooling fan was not running (The fan is a OEM Ford Mustang fan). The two auxiliary Spal fans I had installed were running though.
Yesterday, I started the car cold, turned the a/c on max, and the fan turned on as it should. I drove it to the car show and everything was fine. Drove it home, and it did the same thing again and the main fan turned off.
I checked for loose connections, and everything looked fine to me. Just cold started the car now, turned max a/c on, and again, everything worked as it should. I turned a/c off, and after a minute the main fan turned off. Spal fans are wired to run at 174* regardless of a/c position. Temp got to 174, and main fan turned back on with Spal fans. I turned a/c to max and set at 68*. Everything worked fine. Here's the kicker - Cabin got to 68* and the vent output slowed down as it should. I look at the radiator fan and it turned off. The Spal fans were still running. From that point on, the main radiator fan will not turn on regardless of what I do. I am letting the car cool down now, and will see if the main fan will turn on.
I bought a VLCM on ebay last night, but I have a feeling there might be something else going on here.
After the cool down, started up and switched max a/c on, and the main fan came on again. I turned it off, and after a minute, the main fan turned off as it should. Reached 174*, and main fan turned back on. This time, I left a/c off to see if it was related to the a/c function or not. After about 5 minutes, the main fan turned off. Temp started to climb, yet the main fan would not turn back on. A/C was left off the entire time.
I am calling Aric next Tuesday to set up an appointment for him to chase it down.
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