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Car Forum / Ford / Ford Trucks / August 2007

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Refrigerant capacity for 99 Navigator with aux air?

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NewsSkimmer - 06 Aug 2007 03:16 GMT
Can someone out there with a good library tell me the refrigerant capacity
for a 99 Navigator with Aux A/C?

I need to replace a hose and would like to charge to the design capacity.

Thanks !

skimmer
David M - 06 Aug 2007 04:15 GMT
> Can someone out there with a good library tell me the refrigerant capacity
> for a 99 Navigator with Aux A/C?
[quoted text clipped - 4 lines]
>
> skimmer

It should be on a sticker under the hood.  

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David M  (dmacchiarolo)
http://home.triad.rr.com/redsled
T/S 53
sled351 Linux 2.4.18-14  has been up 4 days 2:26

Jeff Strickland - 06 Aug 2007 16:08 GMT
Isn't it necessary to evacuate the air as well as fill the refridgerant?

> Can someone out there with a good library tell me the refrigerant capacity
> for a 99 Navigator with Aux A/C?
[quoted text clipped - 4 lines]
>
> skimmer
David M - 07 Aug 2007 01:36 GMT
> Isn't it necessary to evacuate the air as well as fill the refridgerant?

I was wondering how the OP was going to replace a hose without evacuating
the system and recharging it.

Rather than 'charging to the design capacity' he needs to charge it
according to the refrigerant gauge readings.

>> Can someone out there with a good library tell me the refrigerant capacity
>> for a 99 Navigator with Aux A/C?
[quoted text clipped - 4 lines]
>>
>> skimmer

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David M  (dmacchiarolo)
http://home.triad.rr.com/redsled
T/S 53
sled351 Linux 2.4.18-14  has been up 4 days 23:45

NewsSkimmer - 07 Aug 2007 03:07 GMT
Yes, I left a few steps out....steps irrelevant to the question.

It might also be necessary to open the hood, loosen some fasteners, blink,
breathe, take off the fitting caps, leak check, etc.

And yes, I will monitor the gauges during the loading process....but it is
nice to know what the engineers intended as a sanity check.

>> Isn't it necessary to evacuate the air as well as fill the refridgerant?
>
[quoted text clipped - 14 lines]
>>>
>>> skimmer
C. E. White - 08 Aug 2007 12:39 GMT
>> Isn't it necessary to evacuate the air as well as fill the
>> refridgerant?
[quoted text clipped - 5 lines]
> Rather than 'charging to the design capacity' he needs to charge it
> according to the refrigerant gauge readings.

This is completely a.s backward. Using the gauges to load refrigerant
is NOT reliable. You can damage components doing this - especially if
you think this is the right way to do things.

Ed
NewsSkimmer - 09 Aug 2007 04:36 GMT
>>> Isn't it necessary to evacuate the air as well as fill the refridgerant?
>>
[quoted text clipped - 9 lines]
>
> Ed

I agree...the design capacity should put you spot on....if everything else
is right.

Ed...what are the signs of the system being OVER charged?

skimmer
C. E. White - 10 Aug 2007 13:57 GMT
>>> On Mon, 06 Aug 2007 15:08:58 +0000, Jeff Strickland rearranged
>>> some
[quoted text clipped - 21 lines]
>
> Ed...what are the signs of the system being OVER charged?

A large hole in the condenser is a sure sign...

Ed
C. E. White - 06 Aug 2007 16:16 GMT
Look under the hood. Also see
http://www.motor.com/PDFs/QLG2003_AC_capacities.pdf .

Ed

> Can someone out there with a good library tell me the refrigerant
> capacity for a 99 Navigator with Aux A/C?
[quoted text clipped - 5 lines]
>
> skimmer
SC Tom - 07 Aug 2007 11:11 GMT
> Can someone out there with a good library tell me the refrigerant capacity
> for a 99 Navigator with Aux A/C?
[quoted text clipped - 4 lines]
>
> skimmer

If the sticker is missing from under the hood (and you don't get an answer
here- sorry, I don't know), you could cruise the used car lots and your
local FLM dealer and check for one there.

Good luck,
SC Tom
 
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