Re: [MBZ] '83 300SD a/c suddenly quit

2006-07-03 Thread Jim Cathey
bout 2 hours from home the a/c compressor quit running.  Just had the 
a/c system charged a couple weeks ago, and they didn't find any leaks. 
 I could use some advice on trouble shooting this before I have my 
mechanic look at it.  TIA all.


The usual thing to try is to temporarily short the low-pressure safety
switch to see if the compressor starts then.  If so, either the switch
is suddenly bad (unlikely) or your charge has leaked away.

-- Jim




Re: [MBZ] '83 300SD a/c suddenly quit

2006-07-03 Thread Mitch Haley
Luther Gulseth wrote:
> 
> well, I tried it sitting in the driveway tonight and the compressor is 
> kicking in,
> you just can't feel the lag on the engine like normal. 

Compressor running w/o resistance implies an open expansion valve, doesn't it?
(unless you had to bypass the low pressure safety to make the compressor kick 
in,
then it could be lack of charge)



Re: [MBZ] '83 300SD a/c suddenly quit

2006-07-03 Thread Luther Gulseth

well, I tried it sitting in the driveway tonight and the compressor is kicking 
in, you just can't feel the lag on the engine like normal.  I'll take it to my 
mechanic and let him diagnose it from here.

On Sun, 02 Jul 2006 19:16:41 -0500, Levi Smith <[EMAIL PROTECTED]> wrote:


If it's like my 83' 300D, make sure the 2 flat blade connector is still
plugged into the bottom of the compressor.  If so, apply 12v directly to it
and make sure the clutch is still engaging.
I assume the blower motor is still working.  If not, check the #8(I think)
fuse.

Mine stopped the other day then I checked it this weekend and it started
working again...

Levi





--
Luther   KB5QHU
Alma, Ark
'83 300SD (236 kmi)
'82 300CD (160 kmi)
'82 300D  (74 kmi) needs MAJOR work



Re: [MBZ] '83 300SD a/c suddenly quit

2006-07-03 Thread Levi Smith

If it's like my 83' 300D, make sure the 2 flat blade connector is still
plugged into the bottom of the compressor.  If so, apply 12v directly to it
and make sure the clutch is still engaging.
I assume the blower motor is still working.  If not, check the #8(I think)
fuse.

Mine stopped the other day then I checked it this weekend and it started
working again...

Levi

On 7/2/06, Luther Gulseth <[EMAIL PROTECTED]> wrote:


bout 2 hours from home the a/c compressor quit running.  Just had the a/c
system charged a couple weeks ago, and they didn't find any leaks.  I could
use some advice on trouble shooting this before I have my mechanic look at
it.  TIA all.

--
Luther   KB5QHU
Alma, Ark
'83 300SD (236 kmi)
'82 300CD (160 kmi)
'82 300D  (74 kmi) needs MAJOR work

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[MBZ] '83 300SD a/c suddenly quit

2006-07-02 Thread Luther Gulseth

bout 2 hours from home the a/c compressor quit running.  Just had the a/c 
system charged a couple weeks ago, and they didn't find any leaks.  I could use 
some advice on trouble shooting this before I have my mechanic look at it.  TIA 
all.

--
Luther   KB5QHU
Alma, Ark
'83 300SD (236 kmi)
'82 300CD (160 kmi)
'82 300D  (74 kmi) needs MAJOR work