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Please help!

northcal on Wed July 02, 2008 12:06 AM User is offline

Year: 2003
Make: chevy
Model: pickup

The ac in my 2003 Chevy pickup was not blowing as cold as it was, so I added 1 lb of refrigerant to it, and here comes this problem. The ac blows nice and cold when I have it on maximum, which is on the 4. But on 1,2,and 3 there was no ac, no blowing, nothing...It was working fine before I added the 1 lb. What could have caused the problem?

PLEASE HELP! THANKS.

Chick on Wed July 02, 2008 12:21 AM User is offlineView users profile

Blower motor resistor or module went bad. High fan speed only is running off the high blower relay. Locate in the evap box downstream of the fan which keep it cool..Hope this helps..

PS. you should never add refrigerant without knowing both high and low pressures, and never add anything other than oil, refrigerant and UV dye, nothing else...

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

northcal on Wed July 02, 2008 12:34 PM User is offline

Chick, thanks for your reply. There is one question I would like to ask. By adding the 1lb of refrigerant, that probably overfilled the system and caused the blower motor resistor or module to go bad. Correct?

How much would it cost for shop to get it fix? Any idea?


THANKS.

mk378 on Wed July 02, 2008 1:28 PM User is offline

No they're not related.

But you might have bumped the resistor plug while you were under the hood and either disconnected it or broke the resistor. So first find the resistor and make sure it is securely plugged in. From the outside it looks like a flange on the duct with several flat pins that the plug connects to.

northcal on Wed July 02, 2008 9:41 PM User is offline

Thanks for your answer mk378 it really helped. Today I called in an auto repair shop for a quote,

they said that $400 just to change the blower motor resistor for my chevy pickup. Is that a reasonable price?

And by the way, would it also be a climate control switch that went bad?


THANKS.

bohica2xo on Thu July 03, 2008 2:10 AM User is offline

The blower resistor on that truck is mounted near the blower motor itself. It has a flat, 7 pin connector on it. There is a 2 wire pigtail with red & black wires hanging out of it.

I show 2 AC Delco parts for that truck. ACDELCO Part # 1581086 or ACDELCO Part # 1581087 - depending on cab style, HD heater, etc. Either part is about 35 bucks, and should take about 15 minutes to change.

Four Hundred US Dollars? Sounds a bit high to me.

B.

-------------------------
"Among the many misdeeds of the British rule in India, history will look upon the act of depriving a whole nation of arms, as the blackest."
~ Mahatma Gandhi, Gandhi, An Autobiography, M. K. Gandhi, page 446.

Chick on Thu July 03, 2008 7:49 AM User is offlineView users profile

I'll change them all day for $100.00 and be very happy...Find a reputable repair shop if you can't do it yourself. Your being robbed!!
Hope this helps..

-------------------------
Chick
Email: Chick

---------------------------------------------

Freedoms just another word for nothing left to lose

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