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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

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#17 of 561
Re: Cooling Systems: Problems & Solutions [Mr_Shiftright] by lildoers
Jun 05, 2005 (6:17 am)
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Replying to: Mr_Shiftright (May 04, 2005 11:34 am)

My fiance just did a radiator flush (coolant) and now the coolant light is on. Is there something to reset? His car is a 1998 Pontiac Grand Am, 2.4 ltr auto
#18 of 561
Re: Cooling Systems: Problems & Solutions [lildoers] by Mr_Shiftright HOST
Jun 05, 2005 (7:08 am)
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Replying to: lildoers (Jun 05, 2005 6:17 am)

There's a little plunger (like in your toilet) in the reserve tank where you fill it, and this is either stuck or broken or the level in the reserve tank isn't high enough.
 
RE: THERMOSTAT -- you pretty much have to take it out to check it, and if it isn't expensive, it's a GREAT idea to just replace it, since you have all that goop in there.
 
Stopleak is kind of a desperate measure, so you shouldn't overdo it.
#19 of 561
Re: Cooling Systems: Problems & Solutions [Mr_Shiftright] by dodgekbad
Jun 07, 2005 (8:37 am)
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Replying to: Mr_Shiftright (Jun 05, 2005 7:08 am)

Why the thermostat? I would do it I think, but from what I understand, I'd have to drain the coolant again that I already did last week. Besides I don't have heat or A/C problems. Everything seems to work fine except the Reserve coolant is brown.
 
I think that Stop Leak did the trick (despite being brown in color) because it doesn't seem to use any coolant now. Also it doesn't smell either. And judging from when I drained it last - I am willing to bet the coolant is green in the radiator - just the reserve bottle coolant is brown.
 
I've used a compression tester on a 2 stroke dirt bike before. Is it as EZ for an SUV as unscrewing a spark plug; putting in the gauge; and starting the engine 6 times for each plug? That'll tell me if the rings are good, No? But where can I get the specs?
 
Or maybe pressure testing that coolant systems sounds like a good idea? Maybe it's that water pump not pumping the stuff around. But how much is that? I just upgraded from an '88 k to a '98 Explorer (albeit for cost) but it broke the bank in a way. Plus I am a tightwad who has some junior mechanic skills, and hates mechanics. Thanks Mr Shift.
 
Nick
#20 of 561
Re: Cooling Systems: Problems & Solutions [dodgekbad] by Mr_Shiftright HOST
Jun 07, 2005 (11:13 am)
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Replying to: dodgekbad (Jun 07, 2005 8:37 am)

Well you have to realize you haven't fixed anything. If the stopleak has stopped your problem, it's going to come back.
 
I suggested the thermostat because you said coolant was pushing out the reservoir or radiator. If the thermostat got partially stuck, there would be poor water circulation and you'd get a fast overheat and coolant blowing out. And besides, thermostats don't like stop leak very much. It is after all, clogging all small openings, as it is supposed to do. Stop leak isn't smart, it doesn't know which openings are good and which aren't good.
#21 of 561
Re: Cooling Systems: Problems & Solutions [Mr_Shiftright] by dodgekbad
Jun 07, 2005 (12:30 pm)
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Replying to: Mr_Shiftright (Jun 07, 2005 11:13 am)

When did I say coolant was pushing out the radiator? I am not sure what this means. I know you're trying to help and I don't want to argue, but could it just have been a pinhole leak somewhere that I couldn't spot?
 
So what should I do? It doesn't use coolant any more, or smell, so the stop leak appears to be working. Either that or the do-it-yourself drain and fill, did the trick. I drained it after put the Stop Leak in, so I probably drained whatever Stop Leak was there anyway. I am not sure about draining again to get to that thermostat with my new coolant and all.
 
But why Brown in the Reserve? Could it just some Stop Leak in the bottle. It's been like 90 degrees here and the needle is just running a little on the cooler side, by about 1/6 on an inch, on the gauge.
#22 of 561
Re: Cooling Systems: Problems & Solutions [dodgekbad] by Mr_Shiftright HOST
Jun 07, 2005 (12:54 pm)
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Replying to: dodgekbad (Jun 07, 2005 12:30 pm)

Well if the problem is solved for the moment, that's good. I'd have to see this brown stuff before I could say what I think it is.
#24 of 561
1998 Ford Contour by rzombie
Jun 08, 2005 (5:17 pm)
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HI, I am having problems with my 1998 Ford Contour.
When I drive on the highway my car works like it should all the readings are right for temp and only when i start up my car does the coolant light come on. But when I drive for about 20 mins on the highway my coolant light comes on and then when I pull over to check it the all the coolant dumps on the ground through the pressure release hose. I am completely stumped and so is every person I have brought my car too (INCUDING THE FORD DEALERSHIP)
 
Now I was stupid and spent tons of money changing just about everything the cooling system.
 
I have changed the water pump, hoses, radiator cap, thermostat, temp sender, temp sensor, I have had the head gasket checked 4 times (all came up negative)
 
so I am completely out of ideas
 
PLZ HELP
#25 of 561
Re: 1998 Ford Contour [rzombie] by Mr_Shiftright HOST
Jun 08, 2005 (5:48 pm)
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Replying to: rzombie (Jun 08, 2005 5:17 pm)

How was the head gasket checked? Did someone test the coolant chemically for carbon monoxide residue? You could have a tiny crack in the cylinder head and while it will not leak water into your oil it could heat up your coolant---long shot, but worth a try.
 
Otherwise, I'm wondering if your car requires a certain way to refill the coolant--that is, maybe you have air in your cooling system because it wasn't bled off properly during coolant filling.
 
The reason I say this is that your coolant light is related to coolant level---your coolant seems to be surging, which it will do if there is air trapped in the system.
#26 of 561
Re: 1998 Ford Contour [Mr_Shiftright] by rzombie
Jun 08, 2005 (7:27 pm)
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Replying to: Mr_Shiftright (Jun 08, 2005 5:48 pm)

We have done the Chemical and 3 different types of pressure checks. We also thought about there being air in the system so we drained it all and we filled it back up and let the car run to have all the air be pushed out.
 
I was wondering I have heard that there is a flapper on the top radiator hose could this be the problem?
 
Thx for replying

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