tahoe air conditioner - Car Troubleshooting


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Auto Repair Home>> Automotive Repair>> Car Troubleshooting

jimmyjames
New User

Sep 16, 2009, 6:24 PM

Post #1 of 3 (3342 views)

tahoe air conditioner	Sign In

ok my 01 tahoe has 140k miles and is a v8. the ac stoped blowing cold air. i tried adding freon and i would not take a can. i can still hear the compresser kick on and off. any other cost saving ideas that might help?

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 16, 2009, 6:29 PM

Post #2 of 3 (3339 views)

Re: tahoe air conditioner	Sign In

You can't begin to diagnose an A/C system until you hook up pressure gauges and get pressure readings for both high and low sides using a professional set of gauges. You shouldn't even be trying to add refrigerant without knowing the pressures because you can do extreme damage by adding too much.

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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.

(This post was edited by Hammer Time on Sep 16, 2009, 6:29 PM)

Tom Greenleaf
Ultimate Carjunky / Moderator
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Sep 17, 2009, 12:51 AM

Post #3 of 3 (3331 views)

Re: tahoe air conditioner	Sign In

Most problems are low charge. As Hammer said basically just adding refrigerant can be destructive. If a a dual system up to 6K so how much are you saving?

Pressures with front on full blast would tell a lot, rear off, raised idle and temps taken. Note - pressures count when compressor is engaged.

Look for oil staining or drips where it doesn't belong as a clue, -- shaft seal of compressor is popular area of trouble,

T

(This post was edited by Tom Greenleaf on Sep 17, 2009, 12:54 AM)

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