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Vacuum hose ac replace - AC Cars & Trucks

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  • Elizabeth Aug 11, 2017

    Hi Gaston Hinostroza, I want to help you with your question, but I need more information from you. Can you please add details in the comment box? Would need more info such as year, make and model.

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I only get cold air in the cab 2001 ford f150 5.4 triton. I checked coolant and have no problem. I checked the heater hoses and they are both getting hot. Blend door also opens and closes normally.


You have a Heater Valve inline with one of your heater hoses. It has a single vacuum hose going to it. Check your vacuum source first, also pull a vacuum on the valve itself to see if it holds a vacuum. If the valve doesn't hold vacuum-replace it. If you aren't getting vacuum to the valve, then something is wrong with your climate control(heater setting/ac) or the plastic vacuum line is cracked somewhere between your knobs, through the firewall, to the valve itself.

Nov 26, 2015 | Ford Cars & Trucks

1 Answer

I need the diagram to find a leak


Bad vacuum supply = leak from engine, or bad vacuum check valve keeping vacuum from building up in reservoir. Use vacuum gauge to find problem, or replace cheap check valve and then listen for any leaks.

Jun 23, 2015 | AC Cars & Trucks

3 Answers

When I switch fro defrost to ac the airs still comes out through the defrost by the windshield


It sounds like a vacuum hose has come off or broke. Try checking the hoses towards the fire wall under the hood.

May 16, 2011 | 2001 Saab 9-3

1 Answer

How do you replace an AC compressor on 2000 Ford Taurus


AC repair require a vacuum pump. It is not a do it your self job unless you has access to a HVAC vacuum pump. Example: Robinair brand vacuum pump and manifold meter,hoses and R-134a refrigerant.

My advice is to let the professional to do the job.




Apr 24, 2010 | 2000 Ford Taurus

1 Answer

When I accelorate my ac vent goes from center


Check the white vacuum hose going to your recirculation door outside under the hood. It is located on the passenger side firewall . The hose becomed brittle and falls apart. I get small vacuum hose and cut into the wiring harness to locate a good section of hose.Put hose to vacuum motor. Good luck.

Aug 09, 2009 | 1995 Ford F150 Styleside Regular Cab

1 Answer

Ac does not switch from defrost to ac it stay on the defrost vent does not go to ac vents air coming out defrost vent


There is a vacuum hose that runs in front of the throttle body going to the vacuum ball the hose is part plastic they get hot and break.With out this hose attached the blend door actuators will not move.

Aug 04, 2009 | 2003 Chevrolet Astro

4 Answers

2004 Ford Van A/C quits blowing on acceleration


u have a engine vacuum loss to the AC mode control switch (this switches the different functuions, dash, floor etc.), pull the ac control and check the vacuum, should be around 18-20 inches with a vacuum guage, if it is replace the mode control vacuum switch, if not check the AC vacuum hose for a restriction or a cracked split hose inside engine compartment.

Jul 09, 2009 | 2004 Ford Econoline

2 Answers

1995 Ford Bronco - AC and heat cut out when under a load


This is by design, there is a WOT [wide open throttle] cut out that cuts your ac off to be certain you have full horsepower for passing.

Jan 08, 2009 | 1995 Ford Bronco

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