chauti

I have a 96 Honda Accord 4cyl. For several months now my cars temperature keeps rising up despite several repairs. So far the things that have been done are as follows: New radiator, the hoses were changed, a mechanic removed the heating system since I live in Miami, just recently one of the main hoses exploded so it was replaced, the circulating system as check for air pockets. Each and every time after repairing the car always seems to start heating up again and the only thing keeping the temp low is when its in motion and the air runs through the engine and the fan turns on after the car has been turned off. What can I do these repairs are starting to come out costly and I am getting really annoyed since each repair last like two weeks before it starts heating up again . HELP PLEASE !!!!!

Roader

Both are indications that the coolant is low. Does coolant level drop i.e., do you have to add coolant regularly?

holmesnmanny

Pull the thermostat and run without it and see if it overheats.

poorman212

Agree with checking the coolant level......take it in., something is replaced and the coolant topped off....two weeks later the issue comes back. IMO-there is a leak somewhere....internal or external but it really sounds like a loss of coolant.

exb18c1

For several months????Poor engine man.Which main hoses exploded?Lower or upper?You must have had a little problem to start with, which turned
to a bigger problem.The only thing that wasn't touched is the thermostat.I don't remember on this model if you could install the thermostat incorrectly(happened to me once).If the thermostat is ok and the proper rating I would do a cylinder leak down test.Before going to big stuff do a pressure test of the system and see if pressure drops or not.

ivey_usmc

my problem was the head gasket

perikoXC

I have the same problem , im starting to wonder if its the head gasket as well , i replaced thermostat main hoses radiator did a waterpump timing belt replacement corrected the timing, and it would still end up over heating i think its the headgasket.

ivey_usmc

Yea ive done all the same with replacing EVERYTHING and it ends up to be the damn gasket!

kidcool1977

Try this simple test to see if it is the headgasket, it cost 25 bucks at autozone.

Also, I see no indication that you replaced your radiator cap.

sjefferds

My overheating Accord is a 95, but can't imaging the 95 and 96 are tremendously different.

I puled the green cap at the thermostat as suggested and when I hook it up to my multi-meter, I get nearly 12VDC across the connection, but the drivers side fan does NOT turn on. Seems that most replies were related to a functioning drivers side fan when bridged.

I allowed the engine to warm up until the gauge passed the normal midpoint, about 3/4 of the way to red, then checked the plug the green cap attached to, checking ohms resistance. I expected to see a reading of zero, but saw a 1 instead.

Does this mean the drivers side fan is bad and needs replaced? The resistance across the thermostat plug would seem to me to indicate that it's faulty too?

By the way, I pulled out my ramps and put it on them to do the burp thing too.

Thanks in advance,

Shawn from AZ
"Sure it's a dry heat...but then so is fire!"

greekcypriot

Hello jefferds
I'm battleling the same issue with the Honda accord LX.
I have the Headgasket replaced, and had the Water pump, put in a Honda Accord Thermostat, replaced the 4 Sensors One on the TS housing, One on the Upper house towards the Engine, two below the Distributor cap... Checked the relays, and the fuses, replaced the Radiator and the The passenger fan... It over heats...so check the specs on the sensors they are suppose to come on at a temp of 102to 105 C so they are doing that...
Boths fans when the AC is on should be running... even the fan come on when the car is off but the Niddle is still 3/4 to almost to the max up..I do not think that is normal... so something in the system send that temp out of wack and I'm not sure what else to check.

Any ideas that would help I welcome it.
Thank you,
Andrew

holmesnmanny

If the fan comes on when the car is off, you atleast know the fan is working. So then you turn ur attention to the fan switch on the thermostat housing. I can't tell for sure if you replaced that. That is the one that is back where the lower radiator hose goes to the back passenger side of the engine. Don't take any chances this time get one from honda and ask for the fan switch/sensor that is located in the thermostat housing.

The fan switch in the front of the engine nearest to the radiator really isn't even needed. It rarely does anything. It's only working in your instance because the car is overheating because the other sensor isn't doing its job.

poorman212

What side are you testing.....and BTW that should be a ground (as I read the wire diagrams)???? So not sure how you get 12v on the wires.....

Anyway, jump the wires together (lower hose, NOT the upper-t-stat), turn the key on, BOTH fans should come on?

sjefferds

On my 95 I did the key on, jumping the two wires with my multi-meter, I see nearly 12VDC, but the fan does NOT come on so I assume this means it's dead. Seems that just pulling the entire radiator is as easy as trying to remove the fan from the installed radiator.

As stated before, I let the car get warm and check across the thermostat switch and still see resistance, versus the no resistance I was expecting to see, so believe it's dead too. Anyone care to confirm one or both suspicions?

poorman212

Well the easy thing to do is put 12v directly to the motors....

Did you jump the wires with a paper clip as asked?...BOTH fans should run.

JigsN Joints

If your fan doesnt come on while the car is running and only comes on after you shut the car off most likely your t-stat is not working properly. It could be stuck closed or it could have a big *** air bubble in front of it not letting it open

Rowdy Rod

If the fan comes on AFTER you shut it off the timer module could be bad. It is usually located behind the glove box.

greekcypriot

Thank you for the reply.... after several attempts it goes to show you that even thought you buy brand new parts they are not necessary that they will be working. It does not matter where you buy them.

I replaced the colling fan... and the new part it came from RockAuto... that went out two months in to operation... then in the myst of trying to see what else can make the car overheat... i replace the Temp sending unit too... well that was bad. Rock auto replaced the Fan since it was under warranty and that worked but then ended up findind out that the temp sending unit from NAPA was bad brrand new part so put in the old sending unit that out took out earlier in the week and all is working normal.
If someone would ask me me the cause... not sure what part fail... but i replaced all the temp sensors except the Sending unit the radior the Honda Thermostat the water pump and the Headgasket...This foreign made car are so electronically control that one thing can through off the system I think.

I hope this would help someone else.
thank you.

Rowdy Rod

The first thing to do is always jumper 12 volts to the fan in question. If it runs then look elsewhere. It seems a lot of bad parts new out of the box is too common now. It took me much longer to fix my fan problem because of a bad out of the box fan relay. You can find electrical drawings on line by Googling your car.

eymnewdc4

how exactly do you safely and properly jump the fans together? I am having issues with the larger fan on the passenger side not coming on. I'd like to test it before I go on to other parts to see if that is what is causing my overheating while idle or low speed issue

(94 non vtec 4 cyl)

newhondagirl

i am having many of the same symptoms above and have concluded that it is the head gasket my question is...should i just do the head or should i do an engine swap???looking for the cheapest route...also need timing belt, water pump, and clutch...my poor car

holmesnmanny

How are you sure it's head gasket ?

holmesnmanny

Buy a set of "test leads" from any auto parts store. Then just run from the battery to the fan motor connector.

newhondagirl

well the biggest reason id that when i tried to burp the system...the air never stops coming...several people have told me that the only way air gets to your cooling system is from the combustion chamber...i am taking it tomorrow to get a leakdown test...as far as i can see there is no water in oil and no oil in coolant...the car runs and drives it just overheats about 1 mile after driving...the last time i drove it i pulled over and let it cool for a few min...i could only go 1-2 miles before it got close to to red again...needless to say my 12 mile trip took over an hour...i dont want to make thing worse and i definately dont want to be stranded...also there is no heat in the car and i know that could also be related...hot water not making it to the heater core due to exhaust in the cooling system...i could be wrong cuz this is all new to me....anyone got any ideas...would a bad water pump or hose allow air into the sytem???

Rowdy Rod

A leakdown test shows if there is leakage in the cooling system. There is a tester that can be attached to the radiator cap opening that will tell you if there are combustion particles in the coolant. Sounds to me like you have a stuck thermostat if you cannot go one mile. Combustion geeting into the coolant will not over heat the car that quick.