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Car Forum / Honda Cars / July 2007overheating?
I have a 95 Honda Accord. Whenever we let it idle or drive for a while afterward there is a boiling sound from the radiator overflow tank. At first we thought it was just low so we filled it to the max and then let it suck up whatever it needed and then refilled it. Now, it seems to be at an adequate level but it's still boiling. The weird thing is that the temperature gauge in the dash doesn't seem to register the heat. It doesn't seem to be moving at all. We just had a friend replace the thermostat like we thought the problem was from originally, but that didn't seem to do the trick. Does anyone know what the problem could be? Lots of things. Is the fan coming on? Do you see a leak? Is there coolant at the tail end of the exhaust pipe? If there is a leak, and you let it get low enough, the "boiling" now could be the cooling system getting rid of vestiges of air from the engine. Carry a jug of Honda Genuine coolant, and if the level in the overflow tank goes down more, then you might have a leak. If you ever over heated the engine, you might have a head gasket leak. Saludos cordiales, Earle > I have a 95 Honda Accord. Whenever we let it idle or drive for a while > afterward there is a boiling sound from the radiator overflow tank. At [quoted text clipped - 6 lines] > originally, but that didn't seem to do the trick. Does anyone know > what the problem could be?  SignaturePosted via a free Usenet account from http://www.teranews.com > Lots of things. Is the fan coming on? Do you see a leak? Is there coolant > at the tail end of the exhaust pipe? If there is a leak, and you let it get [quoted text clipped - 25 lines] > -- > Posted via a free Usenet account fromhttp://www.teranews.com The fans weren't coming on until we refilled it. Then it seemed like only one of them was coming on. We didn't see any leaks though. We are now thinking that maybe when we changed the thermostat that air got into line and it is trying to get all that out. So I'm going to watch for coolant in exhaust pipe and see if it stops "boiling" . If not then I think it may be a head gasket which would not be good. >> Lots of things. Is the fan coming on? Do you see a leak? Is there coolant >> at the tail end of the exhaust pipe? If there is a leak, and you let it get [quoted text clipped - 31 lines] > for coolant in exhaust pipe and see if it stops "boiling" . If not > then I think it may be a head gasket which would not be good. the expansion tank doesn't "boil", it's gas from a leaking head gasket getting into the coolant and bubbling through to the only possible exit, the expansion tank. coolant in the exhaust is only a late stage symptom. sorry about the bad news, but you need to get this fixed right away before damage to the head or block occurs. confirm with a hydrocarbon chemical test of coolant fluid if you wish to be sure. but head gasket is a 99.999% certainty. if price is a factor, suggest you look into the cost of repair vs. replacement of the motor. many head gasket repairs are not done well and engines tend not to last well after surgery. it'll cost you $450 - $600 for a low mileage used motor from japan - and labor to swap is less than all the work necessary to do the gasket. > >> Lots of things. Is the fan coming on? Do you see a leak? Is there coolant > >> at the tail end of the exhaust pipe? If there is a leak, and you let it get [quoted text clipped - 46 lines] > $600 for a low mileage used motor from japan - and labor to swap is less > than all the work necessary to do the gasket. To add just a little, head gasket is moderately easy to replace, but evaluating the head for damage is the tough part. That is why Jim is recommending the used engine from Japan. If you do the labor yourself or in exchange for beer, then it wouldn't be so bad to replace the gasket hoping it would fix things. But if you are paying a commercial garage rate, you can burn through the cash pretty fast, and still wind up with problems. Saludos cordiales, Earle SignaturePosted via a free Usenet account from http://www.teranews.com >>>> Lots of things. Is the fan coming on? Do you see a leak? Is there > coolant [quoted text clipped - 52 lines] > To add just a little, head gasket is moderately easy to replace, but > evaluating the head for damage is the tough part. kinda. it's relatively easy to check for warping. cracking is a little harder, but not likely. the biggest problem is shops routinely skimming heads when they don't need it, using abrasives, and then acting all "surprised" when the motor's shot 9 months later. > That is why Jim is > recommending the used engine from Japan. > > If you do the labor yourself if you're doing it yourself, and not pricing the time, it's cheap. but you need to know what you're doing, need to have a few special tools. with the honda, it's an 8 hour job if you're doing it carefully, and a huge chunk of that is just the clean-up before reassembly. in the old days where it's just a pushrod cast iron head/block, it's a breeze. you can use a blunt scraper to clean the head/block and get it done in a couple of hours at the most. once you get into the alloy head/block thing, it's very time consuming with careful cleanup, overhead cam, cam timing, etc., it gets to be a pita. > or in exchange for beer, then it wouldn't be so > bad to replace the gasket hoping it would fix things. But if you are paying > a commercial garage rate, you can burn through the cash pretty fast, and > still wind up with problems. yes indeed. > I have a 95 Honda Accord. Whenever we let it idle or drive for a while > afterward there is a boiling sound from the radiator overflow tank. At [quoted text clipped - 6 lines] > originally, but that didn't seem to do the trick. Does anyone know > what the problem could be? blown head gasket. |
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