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Maintenance & Repair Cooling Systems -- Problems & Solutions (Radiator, Fan, etc)
561 messages, Last post on Nov 12, 2009 at 1:37 PM
You are in the Maintenance & Repair Forum. Your Host is mr_shiftright
I have a 1999 Saturn SW2. I have the air conditioning on max. When I am driving the car above 55 mph and no stop lights the air conditiioning temp. gage I have in the duct reads 45 degrees. The Coolant gauge on the instrument panel will be in the zone just above the first line above the C. Now, when I am driving anywhere under 55 mph and have stop at lights the temperature gage in the duct will read 60 degrees and warmer and the Coolant gauge will be going towards the red zone. Now, at night when the sun goes down the gage in the duct will read 40 degrees. I have had the coolant flushed, new theromastat and gased it up as well. How can I correct the probelm. I know if I go to a saturn dealer with it, they will want to replace everything in the car and maybe tell me to get a new car. Also today the instrument coolant gage dances all over the gage. Help I live in Las Vegas and a heat waive is coming. Dar2
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When my '92 Lebaron (V6) warms up to the point where the electric fan turns on, coolant starts pouring out. Prior to this, when the engine is cold, there are no visible leaks. I've replaced the thermostat, which did not solve the problem. The in & out hoses stay dry, and it almost looks like the coolant is leaking out of the middle/center of the radiator. I saw another post describing a pressure valve that opens when pressure builds due to a faulty radiator cap. Should I invest in a pressure tester and a new radiator cap, or is there a more serious issue lurking?
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Replying to: dar2 (Jul 10, 2005 11:13 am) Did you have the air conditioning on for each time that you described? I'm at a loss, since I know for a fact that the vehicle coolant get's a lot hotter then 60 degrees. So I am assuming you are talking about the air conditioning temperature setting. 
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Replying to: avrabel (Jul 12, 2005 8:57 am) You should check (on that car in particular) for a bad head gasket and also have the radiator flow-tested to see if it's all clogged up after all these years and all those miles. |
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Hello, I have a 2000 GMC Sonoma with the 4 cylinder engine flex fuel option. The problem that I am having is the following; If I put the ac switch on any of these selections; max a/c, a/c, symbol that shows air being directed to top and bottom of dash, I will hear a noise that sounds like someone shaking a can of bb's. If I put the same swithch in any other position besides off, I still here the noise(bb's being shaken in a can), but not a intense. This truck has 105,00 miles on it, and everything is all original equipment. My personal feeling is that its the bearing within the compressor. If I disconnect the wire going to the compressor/clutch assm, I can still hear the noise, but only a little. In all cases the noise is more prevalent at low rpm/idle than at any other rpm. How can I be sure it is the bearing in the compressor? If it is the bearing in the compressor, could I fix it myself, or should I purchase a remanufactured/new compressor? New/remanufactured compressors go for $350.00 and up for this truck, so I want to try and do as much of the work myself. Also, I have been having to add coolent to the overfill tank. The ac still blows cool air, but I think its just a matter of time before that bearing(if thats what it is) goes up. In any event, all recommendations/ideas for troubleshooting this problem would certainly be appreciated. Thanks, Robert. Salisbury, Md. 
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Replying to: leo88sld (Jul 17, 2005 2:14 pm) That noise you hear sounds more like a bad AC compressor clutch. We could talk more about that in the Climate Control Forum. This forum is for cooling systems, as in "engine cooling" not car interior cooling. thanks Host |
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Recently, I notice that after I drive hime from work and parked for a while, there is some water under the car on the passenger side. That "water" seems to be not the coolent, because the color is not kind of light green (the coolent color); when I touch it, it does not feel like some oil based. Basically, it seems like just be water... And my coolent reservor is on the driver side. In addition, seems, just seems to me there is no coolent leak from the radiator or coolent reservor, because coolent reservor is at its max level. So I wonder whether it is a problem? Because the warranty period will expire in about 2 months, I don't want to wait until next oil change to get it checked. I appreciate any help here.
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Replying to: jxu158 (Jul 18, 2005 7:18 pm) |
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Replying to: jxu158 (Jul 18, 2005 7:18 pm) |
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I've had a leak there for some time. I can't trouble shoot it for the life of me because (I'm in Oregon) so it does rain alot, but it doesn't consistently leak when it rains. On the other hand it POURS water from the corner under the dash near the firewall when I run the AC. BUT I run the AC all the time throughout the year and it only seems to do this in the summer. I'm really not sure why this is happening and have had it looked at before. There is no consistency to the issue and so it's very hard to make a determination about why or when. Please help me. I've read thru all the water leak posts and don't see anything similar. I do not believe it is an exterior seal or door leak at all. I can actually watch it either drip or pour from the area in question.
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