My 73 Blazer has had a non functioniing clutch cycling switch.. It is new, as is everything else in the system.
The new switch has never cycled off, even at really low vent temps of 32.5. After much discussion and thinking about it, I decided to leave it as is for awhile. Being in Phoenix AZ, it isn't a huge problem.
This morning I was on the highway about 4AM, Ambient temp was about 88. The vent temp got to 37.8, and my clutch cycling status light stated flickering really fast. ( I installed this and a clutch shutoff switch some years back when I used to tow with it)
It is a great way to see just what is going on with the clutch..
I surmised that the switch is trying to work now. I think that as an R12 switch, it may have set on the shelf for so long that it became stuck, and is now working it's way loose.
My concern is that it may over heat the clutch with the rapid on off it is doing, causing it to slip. I turned it off a couple of times with the manual switch, and it went right back to the flickering light.
I am considering just jumping the switch terminals for a few days to see if the switch will settle down and start working normally. Since it's been running awhile with it non functioning, there would be no real harm right now. I also considered just replacing it, but it's replacement may well be in the same condition.
I estimate that the evaporator temp was right around 32 this morning when this occurred...
Thoughts?
The new switch has never cycled off, even at really low vent temps of 32.5. After much discussion and thinking about it, I decided to leave it as is for awhile. Being in Phoenix AZ, it isn't a huge problem.
This morning I was on the highway about 4AM, Ambient temp was about 88. The vent temp got to 37.8, and my clutch cycling status light stated flickering really fast. ( I installed this and a clutch shutoff switch some years back when I used to tow with it)
It is a great way to see just what is going on with the clutch..
I surmised that the switch is trying to work now. I think that as an R12 switch, it may have set on the shelf for so long that it became stuck, and is now working it's way loose.
My concern is that it may over heat the clutch with the rapid on off it is doing, causing it to slip. I turned it off a couple of times with the manual switch, and it went right back to the flickering light.
I am considering just jumping the switch terminals for a few days to see if the switch will settle down and start working normally. Since it's been running awhile with it non functioning, there would be no real harm right now. I also considered just replacing it, but it's replacement may well be in the same condition.
I estimate that the evaporator temp was right around 32 this morning when this occurred...
Thoughts?
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