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2003 Accord 4 Cyl Overheating

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  #1  
Old 08-28-2012, 07:27 PM
upintheclouds90's Avatar
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Arrow 2003 Accord 4 Cyl Overheating

Here is yet another system of the Honda Accord I get to learn about. Driving back from work today I noticed my AC was running hot then a few minutes later I noticed my temp gauge had spiked to red line. I pulled off on the side of the road and looked under the hood and the metal cap for the coolant was twisted sideways and coolant was spewing out. I waited for the car to cool down and twisted it shut then drove back home but the temp gauge still went to red. At home I checked the fuses and the radiator fan fuse had blown. I had a friend take me to autozone and I bought a new fuse however that did not fix the problem. Last Saturday I replaced the starter and I wonder if I did something while removing the intake manifold. Any help is very appreciated.
 
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Old 08-28-2012, 07:41 PM
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Refill the radiator and the reservoir with the proper mix of coolant and water (Honda coolant type 2 is pre-mixed).

You probably have a short in a wire or electrical connector. A short is an accidental connection of a wire to ground or to another wire.

Check the wire insulation and electrical connectors.

Which specific fuse was blown, i.e., number and amperage, under-hood or under-dash?
 
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Old 08-28-2012, 08:30 PM
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Actually the reservoir is way past the full point because of a dunce tech at Time it lube. I've looked at connections and such and have no found anything. The fuse was a 20 amp under the hood that said it went to the fan.
 
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Old 08-28-2012, 08:44 PM
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Here is the circuit diagram for your car. The diagram may help you in trying to narrow which wires and connections to check for the short.

2003 Accord fan wiring
 
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Old 08-28-2012, 08:49 PM
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Did the fuse blow again
 
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Old 08-28-2012, 10:12 PM
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The fuse did not blow but the fan is still not working.
 
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Old 08-28-2012, 10:14 PM
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Oh and thanks for the wiring diagram. Once it is light outside I will check the other relays and fuses.
 
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Old 08-28-2012, 10:28 PM
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I was thinking of a possibility...could I have introduced air to the coolant system when I replaced the starter? The intake manifold had to be disconnected which took the throttle body with it. When I removed two hoses attached there was coolant in them that I had to plug up. Then because of the air could the water pump have cavitated and failed causing a chain reaction to overheat the fans and cause a fuse to blow?
 
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Old 08-28-2012, 10:38 PM
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That's kind of unlikely a little air would have cause what you described. Sounds more like a short caused the blown fuse for the radiator fan. Subsequently, no radiator fan running and overheating. Check all the electrical connectors and any other fuses shown in the diagram.
 
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Old 08-28-2012, 10:50 PM
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A friend told me that the car shouldn't overheat because of the radiator fan if I am driving fast. Is that true?
 


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