AC only blows hot

DUFFEY8709

MEMBER
DODGE TRUCK

1998 Dodge 1500 2wd 102,000 miles 5.2 my trucks ac used to work but about a year ago I accidentaly cross polarized my battery and had to replace starter and alterantor. After I made that stupid mistake my ac stopped working properly. The heater works fine but when I turn it on cold it doesnt blow cold air. Ive checked and replaced all my fuses. And havent found out whats wrong. Could you help me with my problem thanks.

Tuesday, February 6th, 2007 AT 2:09 PM

5 Replies

BUBBA_KOSKI

MECHANIC
129 POSTS

You need to get it recharged. Get some freon at any auto store, and dont get r12 (you need a license anyways( its r130a

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Tuesday, February 6th, 2007 AT 7:27 PM

CARUNDELL

MECHANIC
602 POSTS

R-134A is the refrigerant used. And maybe some accurate diagnostics may be in order . There is a diode on the compressor circuit that may be blown, or the comp. Relay was damaged in the process. Is the HVAC system electronicallyc controlled or a manual set up? Let us know!

Chris

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Wednesday, February 7th, 2007 AT 2:23 PM

DUFFEY8709

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5 POSTS

Im not sure if the hvac is manully or electronically controlled. How can u tell. Thanks for the information

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Wednesday, February 7th, 2007 AT 6:20 PM

DUFFEY8709

MEMBER
5 POSTS

I figured out your last question its electronically controlled the hvac system. Can I get freon anywhere and recharged? How much do du think that all might cost?

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Tuesday, February 20th, 2007 AT 12:28 PM

DUFFEY8709

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5 POSTS

I figured out that the clutch coil connector is messed up because wenever I connect it the ac fuse blows out. Do I have to get a new compressor or just the clutch coil.

Thanks

duffey8709

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Thursday, March 8th, 2007 AT 4:58 PM