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Cooling Systems -- Problems & Solutions (Radiator, Fan, etc)

558 messages,  Last post on Nov 11, 2009 at 7:22 AM

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What is this discussion about? Engine

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#57 of 558 Re: 97 Grand Am massive coolant leak from hose connected to engine [Mr_Shiftright] by plshelp1 Jul 06, 2005 (12:29 pm)
Replying to: Mr_Shiftright (Jul 06, 2005 10:27 am) Thanks again, I am going to look into all your suggestions.
#58 of 558 Re: 97 Grand Am massive coolant leak from hose connected to engine [plshelp1] by masterpaul1 Jul 06, 2005 (12:33 pm)
Replying to: plshelp1 (Jul 06, 2005 9:30 am) Try to start the car when cold and let idle to regular temperature. (while hood is up and with a lot of light). Check for any visible leaks while engine is running, then turn engine off and look for any leaks and listen for any hissing sounds. If you don't have a pressure tester, this is one way to find a leak, although a pressure tester is the best way. Good luck.
#59 of 558 Air Cond. can't make uip its mind, Hot or Cold! by dar2 Jul 10, 2005 (11:13 am)
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 Replies to this message: masterpaul1 (Jul 12, 2005 2:22 pm)
#60 of 558 Faucet-like coolant leak by avrabel Jul 12, 2005 (8:57 am)
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? Replies to this message: Mr_Shiftright (Jul 13, 2005 7:49 am)
#61 of 558 Re: Air Cond. can't make uip its mind, Hot or Cold! [dar2] by masterpaul1 Jul 12, 2005 (2:22 pm)
Replying to: dar2 (Jul 10, 2005 11:13 am) Help me understand. While you are cruising at 55 mph with out any stop and go, you have the air conditioner set at 45 degrees and the temperature gauge will read just at the normal range line above the C line. When your driving below 55 mph in stop and go traffic, stop lights, the air conditioning is set at 60 degrees and warmer and the temperature gauge will start to rise in the normal/high range towards the red zone H. At night the air conditioning will be set at 40 degrees with no over heat.   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.
#62 of 558 Re: Faucet-like coolant leak [avrabel] by Mr_Shiftright HOST Jul 13, 2005 (7:49 am)
Replying to: avrabel (Jul 12, 2005 8:57 am) Coolant should go into the coolant recovery tank...it shouldn't leak out of the radiator cap at all....if it does, sure replace the cap but that probably isn't the answer.   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.
#63 of 558 2000 GMC Sonoma Compressor Problem by leo88sld Jul 17, 2005 (2:14 pm)
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. Replies to this message: Mr_Shiftright (Jul 17, 2005 4:43 pm)
#64 of 558 Re: 2000 GMC Sonoma Compressor Problem [leo88sld] by Mr_Shiftright HOST Jul 17, 2005 (4:43 pm)
Replying to: leo88sld (Jul 17, 2005 2:14 pm) How much coolant do you have to add to the tank? Every day or ??   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
#65 of 558 Question on my Nissan Pathfinder 2002 by jxu158 Jul 18, 2005 (7:18 pm)
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. Replies to this message: alcan (Jul 19, 2005 12:26 am) Mr_Shiftright (Jul 19, 2005 8:07 am)
#66 of 558 Re: Question on my Nissan Pathfinder 2002 [jxu158] by alcan Jul 19, 2005 (12:26 am)
Replying to: jxu158 (Jul 18, 2005 7:18 pm) It's probably condensate from the air conditioning system.

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