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I have 2003 pt touring.
Today i drove about 10 min and came to a traffic jam, after about 5 min in the jam, i got the grugling sound under the hood, near the drivers side, the temp started going up, but not to a dangerous point, just 1/4 over the middle on the temp gauge, luckly the traffic jam got away so i kept driving, now air flowing in the rad, temp dropped fast, to test it i parked letting the engine run for a while, hit the gas to get the temp, up and nothing all seems fine. In other ocasions i've been driving a lot over 3 hrs and in heavy traffic, and no problems, last year this has happend about 4 times, but the temp has never gone up to the red zone, no steam pouring our of the engine, no serious problems, i do sometimes get a bit low in coolant but no badly, checked for leaks , there seems to be no leaks. My guess would be that is has something to do with the thermostat getting stuck, or the rad fan, or maybe i have air in the system. I'll check the rad fan with the A/C on Can someone point out where the thermostat is so i can check it out. And where do i drain the air from the cooling system? Last edited by csd; 20 Aug 2007 at 02:07 pm. |
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csd,
Your guesses of thermostat sticking or air in the system could be your problems. If it's air, see what I posted in this thread. Gurgling sound under hood..... |
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it happend again, so i turned on the A/C temp dropped fast, no problem the temp just made it a bit over de middle mark.
The Rad fan is ok, cause when i got the A/C on temp dropped at once, it has to me a stuck thermostat. The other thing is that is was low on coolant again i added a lot almost a gallon, there seems to be no apparent leaks, at least i see no dripping, maybe its a small leak not noticeable, that gets evaporated. Now that the coolant level is full, i will track it every week to see it its keeps loosing. Any suggestions Another thing, i get the MIL on, when i turn the key to ON, positon, but nothing while driving, i did the error code check and nothing shows up, is this normal |
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Your car may have a seeping head gasket and/or a cracked cylinder head that is allowing antifreeze into the combustion chamber. At low speeds this would cause a misfire or your car to run rough. A slight amount of coolant in the combustion chamber at higher speeds would not be noticeable. You should have your engine checked for a leaking head gasket.
Yes, the MIL (Malfunction Indicator Light) should come on briefly when you turn the key on, but then go out. |
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Thanks for the reply, not good news, at low speeds seems to run a bit rough, very low( 6 mph) speeds,but almost not noticeable, i think almost nothing, could be spark plugs or worn out engine mounts, that makes it shake a little, but, like i say it's very. litte, you need to have a trained ear to hear it.
The funny thing is , that when i bougth the car, it was perfect, this began after 6 months after i made the first oil change, and during that time i never had any overheating problems. If that was the case, what would you recommned, is the reapir worth it, if i get new parts, or, should i just get rid of the car. Thanks for your help. |
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That's really a personal decision. If you don't want to spend any more money, trade it in. If you want to find out what's wrong, a compression check and cylinder leak-down test should tell you the condition of your engine and you can go from there.
Losing as much water as you say, without a noticeable leak is not good news. But it could be something you overlooked like a pin-hole in the radiator hose which is leaking onto a hot engine/exhaust part and evaporating/burning off before it hits the ground. |
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Thanks for your fast reply.
Buying new parts, is not a big issue for me o own and import buissnes and i can get the parts from china for about 100 usd. Now that you mentioned the last part it can be that as well, i had a very small crash in december that made a hole in the radiator, the dealer changed it and i have a new radiator, since then the problems has been intermitent, the grugling sound, about 4 times, and no serious overheats, the low coolant issue has only happend 2 times, all this in about 7 months. Any suggestions? In case i decide to repair it, with new parts, do you have any idea how it might turn out, i heard that cars with this problems after they get fixed, they are never the same anymore. |
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Beside the compression check, the cylinder head leak down test, you might also do a radiator pressure test, which actually should have been done with the new radiator. That will put pressure on all the hoses besides the radiator. |
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Thanks for your great help.
I 'll check all that you mentioned, i can't be sure on assumptions, i'll take it to the dealer to discard , and see the real problem, Thanks. |
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Your welcome. As "Bobs Turbo PT" would say; let us know what happens.
Good luck. |
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