Grand AM :: 2004 Pontiac / V6 - AC Gets Hot When Stop At Stoplight


Jun 9, 2016

I have a 2004 Pontiac Grand Am, it has a V6. I live in AZ, so right now its like 110 outside and my ac will work fine when i am driving but when i stop at a stoplight it starts blowing hot but when I start driving again it takes about a minute and then it will blow cold again and it does this same thing at every stoplight, but if the car is just idling in my yard with the ac on it blows cold it doesn't do this, I thought maybe it was low on freon and bought a can of ac pro with a gauge and when i checked the pressure it went into the red so it says not to add any, and contact a mechanic. But what may be wrong with it first, I replaced the ac compressor 2 years ago. A couple of days ago I replaced all the radiator hoses and the radiator and the coolant tank and of course added the right amount of dexcool. The car is not getting hot, the problem is just with the ac ,

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2001 Pontiac Grand Prix 3.1

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We have tried several things on this car to try to fix this problem. We have replaced Computer

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Ok so I just bought this car, 1993 pontiac grand am se, from a neighbor. When I test drove it, the back seat was all unscrewed so I thought no biggie and it drove really nice for being a 1993. Ended up buying the car. I get the car home, husband puts seats back together and we go to leave for town and the fuel pump fuse blew. Put a new one in, go to start the car, fuse blows again! Tow the car home. Husband checks the wires to make sure there is no faulty wires. Has to reground the ground wire. Car then starts. Go to drive down my driveway and the dang fuse blew again! Mind you there is a new fuel pump in the car so we know this isn't what is wrong with it.

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I have a 93 pontiac grand am 3300 V6 with auto tranny. My problem is cooling fan starts running as soon as car is started. AC not on or defrost. In turn doesn't allow engine to reach normal operating temp. I have replaced both the ect sensor & gauge sending unit. I've noticed there's a red light with temp symbol in lower left hand corner of instrument panel that stays on & won't allow ac to come on. Also if I unplug fan relay & allow engine to come up to operating temp the light hoes off. Until the engine drops below 200degrees then it'll come on again. It has just the one fan & I have ruled out the fan relay cause I replaced with a new one. Also, looking for wiring diagram for the rest of relays on firewall & as to what they control.

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Day 2... Remove alternator and have it checked. Autozone says it's good, I replaced the serpentine belt because I noticed some small fraying in a spot. Tensioner was great. Charge up car and it starts. Try to restart it and not enough power.

Now a week later, I am thinking battery or fusible link or bad wire. I pull the battery and have AutoZone check. Battery is bad. I replaced battery and "The Pickle" started right up! Enjoying her gentle purring once again I am dragged back to reality when the alarm bell sounds and the battery light goes off again. I am now thinking fusible link and wire once again.

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NOTE: my car has a tranny cooling line to the radiator but no engine oil cooling lines and the colant is clean. how is it possible?

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