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 Post subject: A/C help....
 Post Posted: Tue May 30, 2006 11:38 am 
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So this is for my '00 F-250 Powerstroke. It blows cold, then it'll blow warmish air, then back to cold, but in no particular pattern...any help?

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 Post subject: Re: A/C help....
 Post Posted: Tue May 30, 2006 1:01 pm 
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Chuck wrote:
So this is for my '00 F-250 Powerstroke. It blows cold, then it'll blow warmish air, then back to cold, but in no particular pattern...any help?


if it has a vaccuum regulator behind the dash, this controls the a/c, check the hoses going to it.

check and see if the compressor is kicking on and off at the same rate as the warm/cold issue. You could be low on refridgerant, and the low pressure switch is kicking off...

being a 2000 it should be 134a refridgerant. you can buy that stuff at walmart. add a half can and see what happens. DO NOT breathe the stuff, it causes testicular cancer. (not a joke)

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 Post subject: Re: A/C help....
 Post Posted: Tue May 30, 2006 1:15 pm 
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jkirisits wrote:
Chuck wrote:
So this is for my '00 F-250 Powerstroke. It blows cold, then it'll blow warmish air, then back to cold, but in no particular pattern...any help?


if it has a vaccuum regulator behind the dash, this controls the a/c, check the hoses going to it.

check and see if the compressor is kicking on and off at the same rate as the warm/cold issue. You could be low on refridgerant, and the low pressure switch is kicking off...

being a 2000 it should be 134a refridgerant. you can buy that stuff at walmart. add a half can and see what happens. DO NOT breathe the stuff, it causes testicular cancer. (not a joke)


Behind the dash....great...should be real easy to get to :-) hehehe thanks for the info john!

_________________
'78 CJ7 project....350, NV3500, NP241, fiberglass tub, show and shine
'72 Oldsmobile Cutlass convertible - the family fun car
'05 Chevrolet 3500 dually, duramax, stock
'05 Honda Odessey awesomevan
'08 Chevrolet HHR company car - The silver bullet

Whatever....


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 Post subject: Re: A/C help....
 Post Posted: Tue May 30, 2006 1:36 pm 
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Joined: Wed Aug 06, 2003 4:33 pm
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Location: Peru, In
Chuck wrote:
jkirisits wrote:
Chuck wrote:
So this is for my '00 F-250 Powerstroke. It blows cold, then it'll blow warmish air, then back to cold, but in no particular pattern...any help?


if it has a vaccuum regulator behind the dash, this controls the a/c, check the hoses going to it.

check and see if the compressor is kicking on and off at the same rate as the warm/cold issue. You could be low on refridgerant, and the low pressure switch is kicking off...

being a 2000 it should be 134a refridgerant. you can buy that stuff at walmart. add a half can and see what happens. DO NOT breathe the stuff, it causes testicular cancer. (not a joke)


Behind the dash....great...should be real easy to get to :-) hehehe thanks for the info john!


if there is a vacuum leak going to the regulator, you should be able to hear it without taking the dash apart.

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 Post subject: Re: A/C help....
 Post Posted: Tue May 30, 2006 2:11 pm 
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jkirisits wrote:
Chuck wrote:
jkirisits wrote:
Chuck wrote:
So this is for my '00 F-250 Powerstroke. It blows cold, then it'll blow warmish air, then back to cold, but in no particular pattern...any help?


if it has a vaccuum regulator behind the dash, this controls the a/c, check the hoses going to it.

check and see if the compressor is kicking on and off at the same rate as the warm/cold issue. You could be low on refridgerant, and the low pressure switch is kicking off...

being a 2000 it should be 134a refridgerant. you can buy that stuff at walmart. add a half can and see what happens. DO NOT breathe the stuff, it causes testicular cancer. (not a joke)


Behind the dash....great...should be real easy to get to :-) hehehe thanks for the info john!


if there is a vacuum leak going to the regulator, you should be able to hear it without taking the dash apart.

yeah, cause my diesel with MBRP exhaust is quite at idle.....

_________________
'78 CJ7 project....350, NV3500, NP241, fiberglass tub, show and shine
'72 Oldsmobile Cutlass convertible - the family fun car
'05 Chevrolet 3500 dually, duramax, stock
'05 Honda Odessey awesomevan
'08 Chevrolet HHR company car - The silver bullet

Whatever....


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 Post subject: Re: A/C help....
 Post Posted: Tue May 30, 2006 3:41 pm 
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Joined: Wed Aug 06, 2003 4:33 pm
Posts: 5344
Location: Peru, In
Chuck wrote:
jkirisits wrote:
Chuck wrote:
jkirisits wrote:
Chuck wrote:
So this is for my '00 F-250 Powerstroke. It blows cold, then it'll blow warmish air, then back to cold, but in no particular pattern...any help?


if it has a vaccuum regulator behind the dash, this controls the a/c, check the hoses going to it.

check and see if the compressor is kicking on and off at the same rate as the warm/cold issue. You could be low on refridgerant, and the low pressure switch is kicking off...

being a 2000 it should be 134a refridgerant. you can buy that stuff at walmart. add a half can and see what happens. DO NOT breathe the stuff, it causes testicular cancer. (not a joke)


Behind the dash....great...should be real easy to get to :-) hehehe thanks for the info john!


if there is a vacuum leak going to the regulator, you should be able to hear it without taking the dash apart.

yeah, cause my diesel with MBRP exhaust is quite at idle.....


i would bet on the low freon first...

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 Post subject: Re: A/C help....
 Post Posted: Tue May 30, 2006 3:43 pm 
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jkirisits wrote:
Chuck wrote:
jkirisits wrote:
Chuck wrote:
jkirisits wrote:
Chuck wrote:
So this is for my '00 F-250 Powerstroke. It blows cold, then it'll blow warmish air, then back to cold, but in no particular pattern...any help?


if it has a vaccuum regulator behind the dash, this controls the a/c, check the hoses going to it.

check and see if the compressor is kicking on and off at the same rate as the warm/cold issue. You could be low on refridgerant, and the low pressure switch is kicking off...

being a 2000 it should be 134a refridgerant. you can buy that stuff at walmart. add a half can and see what happens. DO NOT breathe the stuff, it causes testicular cancer. (not a joke)


Behind the dash....great...should be real easy to get to :-) hehehe thanks for the info john!


if there is a vacuum leak going to the regulator, you should be able to hear it without taking the dash apart.

yeah, cause my diesel with MBRP exhaust is quite at idle.....


i would bet on the low freon first...

I would bet there is no freon... Being a 2000 it should be r134a. :tu2:

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 Post subject: Re: A/C help....
 Post Posted: Tue May 30, 2006 3:49 pm 
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Chambord wrote:
jkirisits wrote:
Chuck wrote:
jkirisits wrote:
Chuck wrote:
jkirisits wrote:
Chuck wrote:
So this is for my '00 F-250 Powerstroke. It blows cold, then it'll blow warmish air, then back to cold, but in no particular pattern...any help?


if it has a vaccuum regulator behind the dash, this controls the a/c, check the hoses going to it.

check and see if the compressor is kicking on and off at the same rate as the warm/cold issue. You could be low on refridgerant, and the low pressure switch is kicking off...

being a 2000 it should be 134a refridgerant. you can buy that stuff at walmart. add a half can and see what happens. DO NOT breathe the stuff, it causes testicular cancer. (not a joke)


Behind the dash....great...should be real easy to get to :-) hehehe thanks for the info john!


if there is a vacuum leak going to the regulator, you should be able to hear it without taking the dash apart.

yeah, cause my diesel with MBRP exhaust is quite at idle.....


i would bet on the low freon first...

I would bet there is no freon... Being a 2000 it should be r134a. :tu2:

Which he stated once already...but must have forgotten....john, you feeling ok?

And a guy from "thedieselstop.com" said not to add freon/refridgerant because too much could cause problems too, i had never heard of that.

_________________
'78 CJ7 project....350, NV3500, NP241, fiberglass tub, show and shine
'72 Oldsmobile Cutlass convertible - the family fun car
'05 Chevrolet 3500 dually, duramax, stock
'05 Honda Odessey awesomevan
'08 Chevrolet HHR company car - The silver bullet

Whatever....


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 Post subject:
 Post Posted: Tue May 30, 2006 3:50 pm 
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Guess it's time to call grandpa....he still works on a/c systems for cars...i'm sure he'll have an answer for me....

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'78 CJ7 project....350, NV3500, NP241, fiberglass tub, show and shine
'72 Oldsmobile Cutlass convertible - the family fun car
'05 Chevrolet 3500 dually, duramax, stock
'05 Honda Odessey awesomevan
'08 Chevrolet HHR company car - The silver bullet

Whatever....


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 Post subject:
 Post Posted: Tue May 30, 2006 5:07 pm 
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its a ford diesel, so doesn't it have an electric vacum pump? make that that is working too....

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