Need help on the Road

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J

jblueridge

SILVER Star
10 Year
Joined
Aug 12, 2014
Threads
275
Messages
3,361
Location
Near Charlottesville, VA
I am about 6 hours into my trip from Virginia to Colorado. Came through a thunderstorm. Air con blowing cold. Pulled into rest stop to walk dog. 12 minutes later no air con.
Got off the interstate and watched compressor. Clutch would not engage. I bought some wire thinking to bypass clutch switch. (I brought no electric wire or terminals from home)

Back in truck to find shade.
Aircon now working again. I had not done any test or repair.
I looked at the sight glass window on the drier. No bubbles as compressor was running. Nothing to see but the pale green dye or whatever.

Did the evaporated freeze up maybe?

Any help appreciated

Oh yeah. It has real R12 freon in it.
 
jblueridge said:
I am about 6 hours into my trip from Virginia to Colorado. Came through a thunderstorm. Air con blowing cold. Pulled into rest stop to walk dog. 12 minutes later no air con.
Got off the interstate and watched compressor. Clutch would not engage. I bought some wire thinking to bypass clutch switch. (I brought no electric wire or terminals from home)

Back in truck to find shade.
Aircon now working again. I had not done any test or repair.
I looked at the sight glass window on the drier. No bubbles as compressor was running. Nothing to see but the pale green dye or whatever.

Did the evaporated freeze up maybe?

Any help appreciated

Oh yeah. It has real R12 freon in it.
Click to expand...
 
Good chance evap froze up. Next time it poops out try driving with it off then after time turn it back on and see of it blows cold. Or turn on heat for few minutes. Have a good trip
 
My elderly dog was about ready to die.
Yeah, I think that R12 freon might work a little too well.
 
Not the evaporator.

Maybe the temp sensor or ac amplifier.

Direct power to compressor clutch makes it engage.

I'll run like this for a while.
 
Or possibly over or under charged. Approach a hard-wired clutch with caution.
 
Whatever the cause is, don't drive a ******* 30+ year old truck without the following:

1. Knowing what you are doing.

2. Having a spare parts kit.

3. Knowing where other cruiser heads are to assist you (either tools or parts or expertise)

4. Knowing how to fix your own junk.

5. Having AAA with lots of range so you can have them come save your ass.

Good luck. I can't believe these types of threads still exist in this day and age.
 
OGBeno said:
Whatever the cause is, don't drive a ******* 30+ year old truck without the following:

1. Knowing what you are doing.

2. Having a spare parts kit.

3. Knowing where other cruiser heads are to assist you (either tools or parts or expertise)

4. Knowing how to fix your own junk.

5. Having AAA with lots of range so you can have them come save your ass.

Good luck. I can't believe these types of threads still exist in this day and age.
Click to expand...

Hello,

x2.

Keeping all the AC compressor moving parts thoroughly greased has worked for me.

There are a few AC system checking procedures in the FSM. They do not require you to be an AC technician to perform. Memorize them or have them at hand. They come in handy.





Juan
 
AC. Is not a vital system who takes gauges and a vac. Pump on holiday plus r12. here that's harder than buying..... I'm assuming belts are good basic stuff. Magnetic clutches get hot and slip and get real hot. Clean it out with comp. air. We do our best eh.
 
As with most threads on 'MUD, you'll find some post contain useful information while others don't.
Good luck......
 
Wow!
People get very angry or at least riled up!

I know tons of stuff about cars and some Landcruiser stuff too.
Thankfully I bought my cruiser before the Owner's Test was legislated.

I am actuating the aircon with a nifty switch, sendng power right to the clutch.
Works great and I cycle it off/on periodically.

Please folks, if you can't stand the idea of me riding around without a degree from Diesel Tech, or Acon U, skip reading my posts.
I will do my part and just try to post threads that show cool mods I've done or generally showing off my cruiser know-how.

Are people mad because I got a non-OEM soft top?
 
Hello,

No offense intended. Old Cruisers have a number of gremlins. Some you can catch and kill, some are elusive.

These procedures have served me well. I think it is wise to start with this before trying anything else. Straight from the FSM.

70 Series AC 1.pdf

This is the FSM troubleshooting guide. My magnetic clutch played tricks on me until I greased it. Maybe yours needs grease as well. Or maybe it is something else.

70 Series AC 2.pdf

As I mentioned, there is no need to be an AC technician to carry out these checks. Again, no offense intended.





Juan
 

Attachments

@jblueridge ..... "Thankfully I bought my cruiser before the Owner's Test was legislated.
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That made my day. :lol:
 
Juan,
Thanks for all the book stuff.
When the temperature fell below 90F and the humidity dropped off, I did mst of the checks descrbed.
No bubbles in the sight glass. High pressure sde is hot, low side is cold (when I wire the compressor from battery)

I think the ac amplifier, thermistor or the switch itself is faulty.

As I drve to higher altitudes n the Rockies aircon will be less important.
 
OGBeno said:
Whatever the cause is, don't drive a ******* 30+ year old truck without the following:

1. Knowing what you are doing.

2. Having a spare parts kit.

3. Knowing where other cruiser heads are to assist you (either tools or parts or expertise)

4. Knowing how to fix your own junk.

5. Having AAA with lots of range so you can have them come save your ass.

Good luck. I can't believe these types of threads still exist in this day and age.
Click to expand...

Geezs I guess A lot of us should just sell are cruisers now!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
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