2007 Navigator A C problem

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Jun 9, 2018 | 10:25 AM

ldou

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From: Newburgh, In.

2007 Navigator A C problem

This morning I started the car turned the A C on rear came on but Front fan didn't come on. Drove down road a 1/4 mile and fan came on. Air not supper cold but works. Any
Ideas?

Jun 9, 2018 | 03:29 PM

gwcloud

Tuned

Joined: May 2014

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Put a thermometer in one of the outlet ducts and run the A/C full blast. In 5 or 10 minutes it should get around 40 degrees F.
Does the front fan run full speed?

Richard
2007 Navigator

Jun 9, 2018 | 04:39 PM

ldou

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From: Newburgh, In.

Seems to be cycles on and off. I'm thinking it is the front blower or the switch. the compressor is running not cycleing

Jun 10, 2018 | 10:40 AM

alloro

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Most likely just the blower motor is bad. If it happens again tap the blower motor with a hammer and see if it starts. If it does replace it.

Jun 10, 2018 | 10:54 AM

ldou

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From: Newburgh, In.

This morning I drove to town about 10 miles. blower started working half way there mde a coup;e stops and it was still working when I go home. Could a relay be the cause.
Larry

Jun 10, 2018 | 11:37 AM

gwcloud

Tuned

Joined: May 2014

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There are a few posts about the front blower failures here on the forum.
Here are a few causes of front blower motor malfunctions: The front blower motor resistor failure, or the ground wire that melts the insulation and the connector.

Do a search and you will see some photos.

After seeing these failures I don't allow my front blower to run very long at full speed.
Richard