Charging the system at 2000rpm has nothing to do with anything. You put the
system under a vacuum and refill after the vacuum has completed (15-20
minutes on the average but can require up to 30-45 minutes). This can be
all done with the engine off - the A/C system doesn't care at what RPM it's
being charged at.
If it's cooling at normal speed but not a idle, I'd be looking at the fan
clutch first.
- Bernd
-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Hop *
Sent: Wednesday, June 23, 2004 3:41 PM
To: dakota-truck@dakota-truck.net
Subject: RE: DML: Air Conditioning
It's the mechanical fan. My 97 didn't come with an electric fan. I know it's
engauged because it roars when i take off. I'm thinking that it might need a
tad more freon. I think they charge the system at 2k RPM to get the best
efficancy on the
hiway.
When they are charged the low side pressure is somwhere around 28lbs roughly
32 deg's.
More freon in the system the higher the pressure. That leads me to beleve
that my pressure is too low at idle. I'm not sure though and i wanted to run
this past someone before i add any freon.
If i put too much in it might mess with my cooling going down the freeway.
I guess i could allways invest in a viper fan setup. Hey don! Are you
selling prefabed kits? lol
--Hop
>From: "Rick Barnes" <barnesrv@comcast.net>
>
>Your fan must be running whenever you're a/c is on for the a/c to work
>UNLESS you are moving and air is being forced over the evaporator.
>
>Rascal
>
>-----Original Message-----
>From: owner-dakota-truck@bent.twistedbits.net
>[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Hop *
>Sent: Wednesday, June 23, 2004 3:47 PM
>To: dakota-truck@dakota-truck.net
>Subject: RE: DML: Air Conditioning
>
>
>I had to have my evaperator replaced. It had a leak and all the freon
>leaked
>
>out.
>Is the compressor running? Look to see if it spins when the a/c is on.
>If
>it
>
>is i bet you have a leak somewhere.
>
>On another note. My a/c wont cool when i'm sitting in traffic or
>parked. I have to be moving for it to cool. Does anyone know what could
>be causing this? The fan on the engine engages and my temp comes up to
>200 while sitting at a
>
>stop light.
>I have a 180 t-stat installed also. It cools fine if i'm going down the
>road. --Hop
>http://home.swbell.net/hopsdak/dak.html
_________________________________________________________________
>From 'will you?' to 'I do,' MSN Life Events is your resource for Getting
Married. http://lifeevents.msn.com/category.aspx?cid=married
This archive was generated by hypermail 2b29 : Thu Jul 01 2004 - 00:15:17 EDT