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Second Generation Legend (1991-1995)

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Old 08-15-03, 09:04 PM   #1 (permalink)
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Unhappy --Coolant Flow Problem (Again)--

Well, this morning after I washed my car I opened the hood to get out the excess water and noticed that my coolant overflow tank was full!! I have a new radiator and thermostat that were installed not too long ago. I did not have much time, but I went to my mechanic down the street and long story short he said to try and new radiator cap-but get an oem one from Acura. I went to the local Acura dealer and they had one in stock. I came home and after a little bit installed the new radiator cap.

Things to note:

1. New radiator

2. New thermostat

3. New radiator cap

4. My car did not overheat before this happened to my knowledge. I just pulled my car out and washed it.

5. In the Mcdonalds drive-through today the temp needle started to go up, then came back down after a sec, there is obviously air in the system.


Any help thoughts and insights would be appreciated!!



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Old 08-15-03, 09:17 PM   #2 (permalink)
 
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um, would bleeding the air help?
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Old 08-15-03, 10:26 PM   #3 (permalink)
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um, would bleeding the air help?
Duh. But air should not be able to get into the system. I should not have to bleed the air out. I'm no mechanic-anyone have a pic of the "bleeder" nut, bolt-whatever it's called.



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Old 08-15-03, 10:32 PM   #4 (permalink)
 
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i know everybody is going to jump on me for saying this but have the headgasket checked. any shop that does emissions can do a hydrocarbon test on your engine.

my experience-

i have a '96 3.2 tl and it is in mint condition w/ 105,000. one day i noticed that the overflow bottle was so full coolant was spilling out the top. i got a new rad. cap and bled the system. the next day i spotted a puddle of coolant under the car where the overflow bottle is located and of course the bottle was overflowing. i never saw white smoke at start-up and never smelled the 'sweet' smell of burning coolant. i had acura do a pressure test on the system for $90 and they found nothing wrong. after adding coolant and bleeding air every day or two and seeing the temp needle rise at idle i finally had the radiator replaced. that lasted for two days. i had a hydrocarbon test done and it gave a reading of 80. anything over 10 is bad. my symptoms were just like yours. get the test done and you will know if it is the headgasket or not.
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Old 08-15-03, 10:39 PM   #5 (permalink)
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Quote:
Originally posted by 91LSMAN
Duh. But air should not be able to get into the system. I should not have to bleed the air out. I'm no mechanic-anyone have a pic of the "bleeder" nut, bolt-whatever it's called.
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Old 08-15-03, 10:50 PM   #6 (permalink)
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Originally posted by WhiteLegend
Thanks-maybe tomorrow I'll feel lucky and try something with that. Does the car need to be running or anything?

I know questions like these have been asked, but when people answer they don't realize that some people don't really know the stuff under the hood.

I can make my Legend really shiny though!!!

Oh and I plan to have a compression test done, just to be sure.

Thanks guys!!



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Old 08-15-03, 11:19 PM   #7 (permalink)
 
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i made a thread a while ago asking how to bleed the system. my car had the same problem never got it fixed tho, just got it wrecked first, lol my mech. said i need a new temp sending unit, and a good bleeding coudlnt hurt, now i got ANOTHER new rad after i messed up the last one i had, so it sat acura spec lets hope after i get everything fixed it will be fine
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Old 08-16-03, 12:04 AM   #8 (permalink)
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Yeah, I realized that I don't even know what type of coolant my mechanic put in (could this be part of the problem?)-he works on all types of cars and I'm assuming that he does not keep Honda/Acura coolant around, so I think what I'm going to do is try to take it to Acura next week and have them flush the cooling system and do a compression test-yes I know dealerships suck, but they have never done anything wrong to me persoanally, except charge too much!!



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Old 08-16-03, 12:33 AM   #9 (permalink)
 
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Yes!! I have the same problem! My car also overheated once or twice, right after I noticed the temp dropped back to normal again once I started driving. I have an aftermarket metal radiator. First, it overheats once, coolant tank full, my stupid attempt at bleeding ends up shooting lots of coolant - Long story short, overflow tank empties and I fill it up with new coolant, also fill the radiator. Then, I bled my coolant(but not 100% correctly) and my overflow tank filled again. Today I bled my coolant right but my overflow tank is still full and my radiator is a little low in coolant. How do I get coolant out of overflow tank and into radiator?

For bleeding coolant: Turn car on and let it warm up, turn on heater to 90 degrees and at least halfway blowing. Open the bleeder bolt a tiny bit(after temp guage has gotten to normal point). You should hear air whistling out, if you don't, no worries. Close up the bolt, take it for a hard ten minute drive. Repeat the bleeding process, right after drive, car still on. If air still doesn't whistle out(so only air, no coolant comes out for a while) take it for another drive(maybe 15 min) and bleed again. This should bleed your coolant and make you happy.. BTW, put a towel over your wrench and your arm so you don't get burned by coolant
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Old 08-16-03, 04:11 PM   #10 (permalink)
 
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Quote:
How do I get coolant out of overflow tank and into radiator?
when the engine cooling system is serviced/working properly, as the car cools down, the fluid that's in the overflow reservoir should automatically be pulled back into the radiator. if not, something is wrong.
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Old 08-16-03, 05:26 PM   #11 (permalink)
 
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fun, we'll talk about it tomorra
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Old 08-16-03, 08:27 PM   #12 (permalink)
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Well, I actually bled some air out of the system this morning. From what you guys are saying if there is a lot of air in the system air should be hissing out correct? When I did mine coolant was coming out. I let it go for a while, let the car cool down and then added coolant to the radiator. As far as I know (going to check again in a minute) I still have a full overflow tank.

I already have an appointment at Acura (I know I know-I hate dealerships also, but sometimes since Acura's are their specialty, they might be able to handle this better) on Tuesday to have the coolant system flushed out and looked at. I am going to tell them again when I drop off the car-look at the entire cooling system!!

They will also be doing a compression test just to be sure.

Thanks for the help everyone!!



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Old 08-18-03, 02:08 PM   #13 (permalink)
 
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Good luck. I just hope it isn't anything major. Let us know what they tell you.
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Old 08-18-03, 05:17 PM   #14 (permalink)
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Well, I'll be dropping my car off in a couple hrs. Right now, after the new radiator cap, the overflow tank is not as full. It seems like that bad cap was the problem. I am still taking it in that way I can get Honda coolant and a compression test done, just to be sure.

Thanks Guys!!



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Old 08-18-03, 05:20 PM   #15 (permalink)
 
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Yeah, its better to be sure than have this nagging worry in your mind all the time. I Hope its just your radiator cap.
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