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

551 messages,  Last post on Nov 09, 2009 at 11:51 AM

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#68 of 551 Think my cooling system might be causing a passenger floor leak by sally3 Jul 21, 2005 (8:38 am)
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. Replies to this message: Mr_Shiftright (Jul 21, 2005 3:36 pm)
#69 of 551 Re: Think my cooling system might be causing a passenger floor leak [sally3] by Mr_Shiftright HOST Jul 21, 2005 (3:36 pm)
Replying to: sally3 (Jul 21, 2005 8:38 am) You should remove the windshield cowling (under the wipers) and inspect for clogged drain holes (easy, just pour water down there and see if it goes onto the ground through a drain, or into your car)---also check the little drain tube that is supposed to drain off the condensation from your AC evaporator---on some cars it is buried so that might take some doing.
#70 of 551 red clay like stuff in radiator by angieatky Jul 23, 2005 (6:59 am)
I have had my car about 4 months and now there is a marroon colored stuff coming out the radiator I check it everyday and it is always a little low and has this stuff. It is thick too. It smears like paint when I touch it. I was just wondereing if it was stop leak and if I flush it out I'm gonna have a hole somewhere. I think it keeps me from filling it all the way up. And thats why its low everyday. Replies to this message: Mr_Shiftright (Jul 23, 2005 9:05 am)
#71 of 551 coolant light flashes by jerryg2 Jul 23, 2005 (7:47 am)
I have a 1998 Pontiac Trans Sport. The low coolant light came on, I added coolant, light went out for awhile - now the light flashes, Did not overheat and does not overheat. Replies to this message: jerryg2 (Jul 24, 2005 8:54 am) Mr_Shiftright (Jul 24, 2005 8:56 am) jerryg2 (Jul 24, 2005 11:14 am)
#72 of 551 Re: red clay like stuff in radiator [angieatky] by Mr_Shiftright HOST Jul 23, 2005 (9:05 am)
Replying to: angieatky (Jul 23, 2005 6:59 am) You should have that checked right away. Could be automatic transmission fluid (your radiator cools your transmission, if you have an automatic). If this is it (just a long guess), that would require a new radiator, and flushing the cooling system and the transmission. Do NOT delay. Find out what this is.
#73 of 551 Overheating on 1998 Sable by southie Jul 23, 2005 (10:31 am)
Recently I flushed the cooling system and changed the thermostat because the indicator was high. It remained midrange until I did serious highway driving. It then went high again. There is proper amount of coolant, in proper mixture, the cooling fan comes on at the right time. Any suggestions? Replies to this message: Mr_Shiftright (Jul 23, 2005 11:20 am)
#74 of 551 Re: Overheating on 1998 Sable [southie] by Mr_Shiftright HOST Jul 23, 2005 (11:20 am)
Replying to: southie (Jul 23, 2005 10:31 am) Okay, overheating at highway speeds only indicates a circulation issue, not a fan issue, since the air flow at highway speeds should be enough to cool the engine even with little fan action.   So you have a clog or air in the system would be my guess. Some cooling systems require an air bleed procedure that must be followed---don't know if this is the case with your car however.
#75 of 551 Re: coolant light flashes [jerryg2] by jerryg2 Jul 24, 2005 (8:54 am)
Replying to: jerryg2 (Jul 23, 2005 7:47 am) Could air in system cause the light to flash and if so how do you bleed the air? Replies to this message: Mr_Shiftright (Jul 24, 2005 8:56 am) jerryg2 (Jul 24, 2005 11:14 am)
#76 of 551 Re: coolant light flashes [jerryg2] by Mr_Shiftright HOST Jul 24, 2005 (8:56 am)
Replying to: jerryg2 (Jul 24, 2005 8:54 am) Well I don't know, each car has a different procedure and I'm not even sure your car requires it. I'm just throwing it out there.   Air in the system will definitely cause an overheat, as this interrupts the flow of coolant. Replies to this message: jerryg2 (Jul 24, 2005 11:14 am)
#77 of 551 Re: coolant light flashes [Mr_Shiftright] by jerryg2 Jul 24, 2005 (11:14 am)
Replying to: Mr_Shiftright (Jul 24, 2005 8:56 am) I developed a big water and steam leak in the area of the water pump. Temp gauge never went above 200 degrees. I know that gauge only senses water temp not steam temp. I drove only about a 1/2 mile before I could park. Having van towed for repair. Ain't like the old days: an air wrench , a little time, few parts and problem solved( not anymore).   I did not think to check for water movement in radiator to make sure pump and t-stat were working when light problem developed, I had no warning except low coolant light. Never had any problems with coolant loss in 7 tears. This problem only existed for two days.

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