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24 Valve 2nd Gen Dodge Cummins 98.5-02 Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps
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defrost only

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  #1  
Old 08-04-2012, 05:37 PM
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Default defrost only
i went throught the drive through and went to turn the ac on and noticed that i only have defrost no feet or face this just happened out of nowhere any suggestions
 
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Old 08-05-2012, 05:04 PM
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vac lines under the hood
 
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Old 08-05-2012, 05:14 PM
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yep vac line came loose/broke in engine bay. same thing happened to me
 
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Old 08-05-2012, 05:41 PM
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where do these vaccum lines run and are there any commons spots where they break
 
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Old 08-05-2012, 08:02 PM
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along the fire wall cowl area. mine came undone at a t fitting behind the brake booster area i believe
 
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Old 08-05-2012, 08:25 PM
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alright thanks that would make since because i just got through pulling the noise insulation stuff of when i went to put the valve cover back on thank you guys
 
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Old 08-05-2012, 09:05 PM
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when ur climate control loses its vacuum it defaults to defrost by spring i do believe. safety thing
 
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  #8  
Old 08-05-2012, 09:42 PM
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When I did my lift pump I pulled one of the plugs off the vaccum line, up on the rubber seal near you windshild behind the break booster
 
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  #9  
Old 08-06-2012, 10:46 PM
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found the problem the clip that hold the line in place broke and the line laid on my downpipe it melted it shut thanks for the help guys i didnt realize vaccum ran the the blower controls saved me from buying a switch
 
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Old 08-07-2012, 06:03 AM
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Glad you found it.

Sent with a Droid RAZR in one hand and 14,000 volts in the other.
 
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