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Overheating issue of the CENTURY! =/

 
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Old 09-03-2012, 10:31 AM
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Overheating issue of the CENTURY! =/

Ok guys, Ive had my car at 3 other mechanics besides myself, and even this last shop is having issues figuring it out. my car has been overheating irradically/intermittently
99 prelude only thing not stock is a header and cold air intake..
This is what has been done to fix the problem..
Jan - waterpump and thermostat
May-sept - rad flushed & manual bleeding for air pockets multiple times
Sept- New radiator with cap, new thermostat (just incase other was sticking)
new coolant temp switch, and coolant temp sensor
Yes both fans work and are 1 yr old they come on at op temperature
Head and valve job was done because one mech diagnosed that..
Last shop has done multiple block tests and no fails yet..
Is there something Im missing? is there anything else?

Heres a few of my ideas..
1. Thermostat is advance auto parts and not oem honda or that little hole on the thermostat is being blocked by the gasket??
2. Possibly needs to be pressure bled by a machine and not manually??

Heres what the car does.. It drives fine for about 3-5 miles or more if no stops.. If i stop somewhere and get back in, a block later it will start increasing temp and it never passes the 3/4 mark.. A/c is blowing cold the whole time so it doesnt seem like its really overheating. on the obd2 it shows it gets up to 213deg ..with a infrared heat gun the top hose at the block reads at 189, and the hose at the back by the thermostat reads about 170-185. The car itself runs great and only seems like small lag on take off..
Well thats most of what I can think of, any help would be greatly appreciated, since ive been without this car for over a month!!
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Old 09-03-2012, 10:56 AM
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Re: Overheating issue of the CENTURY! =/

Remove the thermostat and test it in a bucket of hot water - see if it opens


it's possible that the water pump went bad again - Kronn had that issue


Or your cluster is messed up....
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Old 09-03-2012, 11:37 AM
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Re: Overheating issue of the CENTURY! =/

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Originally Posted by wing8806 View Post
Remove the thermostat and test it in a bucket of hot water - see if it opens


it's possible that the water pump went bad again - Kronn had that issue


Or your cluster is messed up....
the shop said they were going to test the thermostat,
On the water pump issue, could water still be flowing and the pump be bad?
for instance, if you rev up the car while the rad cap is off, the water will gush out..
i was wondering about the cluster thing also, do you have to replace the whole cluster? or just a part on it?
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Old 09-03-2012, 01:28 PM
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Re: Overheating issue of the CENTURY! =/

As far as I know, you would have to replace the entire cluster and either go the legal route of changing the mileage, or the DIY route and never tell anyone :P


I've never started a car let alone messed with it while running with the rad cap off to give an answer on that.
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Old 09-03-2012, 07:11 PM
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Re: Overheating issue of the CENTURY! =/

ok everything concerning over heating ,was i believed mention ,so it sound to me your engine has a internal failure with in the engine on the bottom mass .crankshaft . oil starvation.
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Old 09-03-2012, 09:27 PM
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Re: Overheating issue of the CENTURY! =/

^^ yeah, I assume that the first things that were checked were oil level and hopes that the oil pump is working properly. but it could deff be something internally
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Old 09-04-2012, 08:02 AM
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Re: Overheating issue of the CENTURY! =/

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Originally Posted by wing8806 View Post
^^ yeah, I assume that the first things that were checked were oil level and hopes that the oil pump is working properly. but it could deff be something internally
oil level is fine, but the oil pressure im not sure.. does are cars have an oil pressure light? or just the one that tells you your low on oil? everything i know would tell me that if the oil pressure is low, i would hear knocking... and I dont.. plus this car runs great!
thank you guys because bouncing ideas helps out a lot!

Last edited by Pray_lude; 09-04-2012 at 08:10 AM.
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Old 09-04-2012, 06:25 PM
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Re: Overheating issue of the CENTURY! =/

Probably seems like a simple idea but have you checked out the coolant temp sensor? tested resistance? The infrared reading normal temps on the hoses is while the scanner/dash reads 210+ I assume? and when you say the temp never passes 3/4, is that indefinitely/for the remainder of your drive, does it ever go higher?
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Old 09-04-2012, 07:12 PM
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Re: Overheating issue of the CENTURY! =/

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Probably seems like a simple idea but have you checked out the coolant temp sensor? tested resistance? The infrared reading normal temps on the hoses is while the scanner/dash reads 210+ I assume? and when you say the temp never passes 3/4, is that indefinitely/for the remainder of your drive, does it ever go higher?
Just installed the coolant temp sensor and coolant temp switch.. and it does the same thing the old one did..Today the mech hooked it up to the obd2 sensor and saw the temp rising up to 222deg from 204. At 204 it was at midpoint, at 222 it was a little lower than 2/3rds.. He says the guage might be off a bit.. Does anyone know what temp the midpoint is on our cars??
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