Civic - Honda :: 2003 - How To Clean Blockage Between Radiator And Reservoir
Sep 3, 2016
I have 2003 Civic, 125K. I am having an issue that the hose that connects radiator and coolant reservoir keeps disconnected at the top of radiator. I am sure this is due to pressure build up in radiator, and radiator cap functions. I also have seen lower level of coolant in my radiator but reservoir is full (of course the hose I mentioned above is connected!). I took my Civic to a shop and they bled radiator but didn't fix the problem. I am certain there is a blockage somewhere in between reservoir and radiator. Would flushing the cooling system fix the problem? I just want to give bit more specific information to my shop.
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My 1998 Honda Civic has oil in the radiator. And even stranger, the oil winds up in the overflow coolant reservoir. What is the most likely cause of this?
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I have a 99 Honda civic LX 4 cyl. There is an oily residue in the coolant reservoir an on the fill tube but when the radiator is opened the coolant is clean. The car is using oil but not running rough or hot. There is no tailpipe smoke or evidence of leakage. I am planning to do a compression check and look at the plugs.
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when it began overheating, and to be specific it is a 2003 Honda civic ex, automatic. I took it back to them after having to pay towing expenses. They said they didn't know it had issues (bull) they said it was due to a radiator, so they installed a new one. When I got it back it drove fine then it began exhibiting the same symptoms soon after. I decided since I loved the car I wouldn't even bother with the people I bought it from, big mistake and I should have just returned it...I didn't because I was sick of looking for a car and school was about to start. This began the routine of having to fill it with antifreeze every day before and after class, if I didn't it would most certainly overheat and then I'd have to blow hot air all day.
So I took it to another mechanic who figured it must be something wrong with the cooling system and said the fan was acting slow, so he replaced the fan-switch and thermostat and said that it wasn't the water pump. I was hoping this would do it, but it did not. He then tested the head-gasket twice and it came back negative. Then they tested the catalytic converter, came back negative. This mechanic, then proceeds to tell me the people who sold it to me may have put a sealant in which gummed up the engine and is clogging things so it can't function correctly, or put on the head-gasket wrong or any number of things to the engine. Although, wouldn't this still make the head-gasket test fail? He tells me I may need a new engine because to figure out if it truly is an engine problem that would cost as much as a new engine. I don't know what to do or where to go I am at a loss here. Spending my money just to have mechanics tell me there is some mysterious "undiagnosable" problem with my car is the most frustrating thing ever. No one can fix this car it seems.
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1999 Honda CRV. Just took a 3-hour highway trip. Before trip I topped up coolant reservoir which was a little low, but radiator was full. I did notice some dried white spots on the front of valve cover and spark wires. Wasn't sure what it was, but now realize it was coolant residue. Probably only 1-2 cups were missing from the reservoir, so the leak had just started.
After 3 hour trip, checked engine compartment again. This time the reservoir was totally empty (radiator still full) and the engine was well sprayed with greenish coolant residue. The radiator was cool by the time I checked it, so the leak source wasn't obvious, but it looks to be coming from the seam where the plastic top meets the aluminum.
I will replace the radiator when I get home, but first have to drive the 3-hour return trip. Will it be OK as long as I start full of coolant and keep an eye on the temp gauge?
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I have oil in the little plastic resevoir of my 2000 Honda Civic. It does not overheat and I noticed that their is no foam in the oil dipstick (no water in motor). Somebody told me that it is my radiator.
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My 2001 Civic sedan coolant reservoir was full after a long drive - with coolant blown out from the top. I am trying to isolate the problem.
1) I Did not notice if temperature gauge rose above the mid-point on the gauge.
2) I Discovered issue after 120+ drive on a hot day (90 degrees plus).
3) The car has almost 230,000 miles.
4) About 1,500 miles prior to this incident I removed my drive belt and replaced it with the shorter drive belt to circumvent the A/C compressor as it or the compressor clutch crapped out on me.
5) The morning after this occurred the coolant reservoir was still ful.
6) I removed the radiator cap and ran the engine for about 15-20 minutes. During this time I noticed the coolant in the radiator begin to rise into the fill neck area of the radiator - no bubbles or movement other than up into the neck area. The top hose was warm and then got hot but it seemed the bottom hose remained cold. I then throttled the gas briefly and nothing happened to include the radiator remaining off. The temperature gauge read just below the mi-point. I then throttled up to about 3,000 RPMs and coolant blew out of the radiator – about 1/2 to 1 liter of coolant came out. At that point, I shut everything down, installed the radiator cap, and cleaned up the coolant. I noticed the bottom hose appeared to now be much warmer than before the coolant blew out. The next morning the coolant reservoir was empty.
7) Today, about one week later, I applied power at both fans and both worked. I checked the relays and both registered no continuity across terminals 1 and 2 - as they should. I checked the radiator fan switch for continuity when cold and there was NO continuity across the contacts - as it should. I ran the engine for about 20 minutes with the radiator cap installed. The temperature reading rose to just below midpoint (normal) and stayed there. Radiator fan had not come on yet. I throttled up and nothing. Idled for several minutes and the temperature gauge rose to about ¾ of the way to “H.” I throttled the engine to look for smoke from the tailpipe – there was none (there is no history of any kind of smoke coming from the exhaust of my civic). I throttled up again, the temperature gauge dropped quickly below the mid-point, and the radiator fan came on for the first time. After the fan kicked off the temperature gauge again rose to ¾. I hit the gas, the temperature gauge dropped quickly to below mid-point, and then the fan came on again.
I was thinking this could be a blown head gasket but now I am questioning my initial thoughts. As of right now there is no coolant in the reservoir. One would think if the head gasket was blown that I would continue to get fluid in the reservoir even with the lost ~1 liter from my earlier test. I checked my engine oil dipstick and it looks clean - just oil. Nothing unusual visible when oil fill cap removed. Wy my coolant reservoir would have filled, blown over, not empty when cooled, only to empty out by the next morning after blowing 1/2 to 1 liter. This has been a loyal car (other than the recent loss of A/C) and I would like to see if I can get 250,000+ miles out of her with no serious maintenance.
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First off new jetta owner. I changed the thermostat. There is no heat coming into the car upper radiator hose hot lower hose is cold & seems there is no pressure. I bought the book to repair the car but it doesn't give me troubleshooting directions other than it might be the water pump or a blockage in the radiator.
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So my civic has been running hot this week. Had plenty of antifreeze. Oil.changes and tuneup are up to date. Started running hot monday so I went ahead and changed the radiator cap and replaced the thermostat. Still running hot at this point and im losing all my fluid from the coolant reservoir. I run my heat as a guide to when I lose all fluid. Once the heat turns cold I pullover and refill it up. Oil isnt milky and no white smoke. Could it still be a bad head gasket? Possible water pump? Plan to flush the radiator tomorrow.
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I have a '98 Honda Civic with 230K miles on it. Last month, I suddenly saw few drops of coolant on my garage floor. I opened the hood and saw coolant splashed over the engine. I opened the coolant reservoir and it was empty. Surprisingly, the car never overheated and neither did the temp needle go up. I took the car to the mechanic (Honda shop) and they said that the radiator is leaking. I replaced the radiator and after driving for couple of weeks, the same issue re-occurred.
The coolant ran low in the reservoir and there was coolant splash over the engine. I took the car back to the shop and they said that the hose was not properly installed. They fixed it and said there is no sign of leak. I have been driving for a week now and check the coolant routinely. I have noticed that the coolant level has again dropped significantly. But, after the last fix, I do not see any visible sign of leak. There is no evidence of coolant anywhere under the hood. I am not sure if there is something else going on now. Is there something else I should check?
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92 Honda Civic, it has been steaming under the hood when i drive it and it's going into the overflow tank. When I pull the cap off after it's cooled down and then refill it. I watch to see if it's flowing and it's not. My initial thought was maybe a bad water pump, however I spoke with someone today that said it could very well be the head gasket. I am tending to lean this way now as well, as there is fluid on the ground after I park it. I put down some cardboard so the next time I drive it, I can see where it's coming from... Before I spend any money I want to exhaust the basics. I know I can get a combustion leak test kit to ultimately determine it.
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About a month ago, I smelled a very faint smell of radiator fluid inside the car while the air was on. This happened twice, once on the highway when RPM's were running fairly high/engine temp was slightly higher than usual, and once on sidestreets when I was driving at high RPM's/in lower gears than normal (manual transmission). When I stopped the car it cooled down to normal level immediately and smell went away. I added coolant to the reservoir.Then I noticed nothing for about a month, so I figured everything was OK.Last week, my engine was running hot (usually is at 50% on the temp gauge, it was at 75%, where 100% is red zone), driving at low speeds.
About 5 minutes before that, I had the heat on but noticed the air blowing in the car was not heated even though the engine was warmed up (I assume due to lack of radiator fluid flow through the engine). The car did not overheat, because I pulled over and added water, and later added some coolant. During that incident I did not notice any smell inside the car. At the end of the week, I noticed the car running slightly hot and checked the reservoir. It was low--most of the coolant I added had disappeared in just one week.
Usual things to check:-radiator and all hoses are new-no leaks under the car-no white exhaust/smoke or smell outside
Other things about my car: It is a 1997 Honda Civic. Has never had any major problems, and it's running smoothly, but it does burn oil. The first time I noticed the smell, it was just after I had driven on the highway with slightly low oil level (still on the dipstick, but slightly below the bottom dot. Not too far on the highway--about 20 minutes). Not sure if that could be related.
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I have replaced a head gasket on my 2001 civic LX recently. I have drain the coolant and put it back on again. Now I have idle issues, the car starts fine with high RPM (because it is cold) about 5 min latter the RPM changes, it revs low and high (about 2000 rpm) when it should be idling normally. I have taken the radiator cap (before i start the engine) and run it a while with the cap off to purge any air pockets, no luck. Another thing I have realized that there is a pressure build up in the upper and lower radiator hoses when it is running with the radiator cap on. How to fix this problem?
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I have an 2003 honda odyssey that does not draw the antifreeze from the reservoir back to the radiator, took it to two mechanics first one flushed the radiator the second one pressure tested it, that came back fine they then fill it with antifreeze and said it was low this worked for about six months now its doing the same thing. It doesnt run hot but sometimes I get a gurgling noise when I take off. When I check the water level usually the extra in the reservoir tops the radiator off so it doesnt seem to be leaking but sometimes I smell antifreeze outside my vehicle
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I've parked my R32 mk4 over 5 years ago and recently I started the engine and I noticed over heating and then noticed there is oil coming out of the radiator water reservoir / it's thick and brown !!
I thought about it and went full overall opened the whole thing the head and pistons and everything and I couldn't find any traces or anything broken ,, (I wanted to do that since a long time).
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2003 Civic EX ... I read some of the past questions on this topic, but not sure where to start.
-AC blows warm air.
-AC light comes on as it should (green)
-Underhood Fuses are fine
-Refilled Antifreeze a few days ago, but still blows warm.
-Turned on the AC, lifted the hood and did not see the two large fans blowing. (Not sure if that has to do with AC or just cooling the engine).
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I have a 2003 Civic EX with 160K miles. The car runs great but it will sometimes over heat in traffic. It does not always overheat so it so the two mechanics I have taken it too have been unable to duplicate. I have had he thermostat changed and the relay to the cooling fan. I also changed the radiator cap. Other facts.
The heater has been very slow to heat up even when letting the car run for 15 minutes in the winter. It will heat up only once on the highway. This started at about the same time as the overheating.
It has never overheated on the highway even with 100 degree weather and the AC blasting.
Turning on the air will most of the time lower the temp.
Today after traveling 30 minutes I came to a stop and it overheated(temp gage on H). I tried to turn on the heater to attempt to cool it down and it blew cold air for about 3 minutes and never warmed. I then pulled into a lot andneither cooling fan was running. I did not have the ac on as I am thinking the fact that the heater is so slow might be a clue to the problem.
It would appear it could be something with the cooling fan but neither mechanic thought it was that as they couldn't duplicate the problem.
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Found out today that my third ignition coil is bad, it's a Honda civic 03' my question is, do I have to buy a new ignition coil. I had a clerk tell me I could switch the coils and it would run fine? Is this right? could I just switch the ignition coil with another ignition coil? This doesn't sound right. Well If I do buy new one which would be the third ignition coil? is it counted from left to right or right to left? Are there any telltale signs of a bad ignition coil on sight?
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I have an 03 civic which has recently exhibiting rather inconvenient power loss during warm up.
It seems to be worse when it's below 35 F out... The car starts just fine and I can generally drive several blocks just fine as well. Then for no apparent reason, the engine loses basically all power. It doesn't stall, but there is basically no power. When I pull over, the idle falls to ~400-500 RPM. Pumping the gas increases the RPM slightly, but again, there is no power.
Then as quickly as it began, the problem disappears; the engine returns to normal idle/power. This never reoccurs if the engine is kept warm. However, if the car sits for a few hours, the problem happens again. I would estimate the power loss occurs for ~30 seconds. The check engine light does not turn on before, during or after these episodes. It's almost like the choke is sticking.
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My 03 civic will drive fine when the engine is cool. But after getting off the highway, or running it at higher speeds, when I put it in gear, any gear, it will start choking and bucking like its running out of gas. Once I get it above about 2000 rpms, the choking stops. The read out said it was the egr valve at first, we had it cleaned, but it didn't fix it. The readout now says recirculation insufficient or something like that. I'm wondering how serious this is, and if I should be driving it.
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About 3 weeks ago, I purchased a 2003 Honda Civic EX Coupe, automatic transmission with 131,000 on it. I took it to my mechanic before purchasing it and he said it looked good. The test drive didn't reveal any problems. A few days into owning it, however, I noticed this screeching noise but it didn't happen all the time. When it happened, I was always taking off from an intersection or pulling out of a parking lot - never when I was just driving down the road or on startup. The mechanic couldn't get the noise to happen but inspected the belts and said they looked new and were tight enough. This continued happening intermittently and sometimes I would even notice a slight hesitation in the car on takeoff. I went back to my regular mechanic with no success and also took it to another mechanic who tightened up the power steering belt a bit - still does it. None of the mechanics hear the noise when they drive it because it is so intermittent. I will add that the noise only happens with the AC on - a further inspection revealed the pulleys to be ok. What in the world is this noise and is it something that could leave me stranded? Everything I read about screeching is belt and pulley related but that doesn't seem to be my problem.
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