If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
cooling fan trouble
I recenlty noticed that my 90 accords cooling fan was running hours
after I turned the engine off, and kept running until the battery was dead. I recharged the battery and started unpluging sensors while the fan was running to locate the problem. When that didnt work I unplugged the cooling fan relay located in the fuse box under the hood. That finally shut the fan off. I then noticed that I could here some clicking while I was replacing it. Nothing unusal, but it continued clicking after it was pluged in (and the fan continued to run). I unpluged the relay and called it a day. The next morning I pluged the relay back in and the clicking noise was gone, and the fan wasnt running. I thought the problem fixed itsefl until I drove it to work and the damn thing started overheating. Now the fan wont come on at all. I replaced the relay, and that didnt work (no clicking either). I dont think there is any power going to the relay, but I dont know how to check for that. I was told that it could be a bad cooling fan switch that screws into the radiator. I was going to replace that next but I want to get some professional feedback before I start replacing parts. Any advice would be much apreciated. |
Ads |
#2
|
|||
|
|||
cooling fan trouble
It is not a good idea to go replacing electrical components with the battery
plugged in, unless you are an expert and know for sure, that the component in question does not have any power to it. "I then noticed that I could here some clicking while I was replacing it." That could have been relay contacts welding themselves together and making relay coils burn themselves out. The switch is a likely candidate. If it is responsible for the original problem of the fan staying on, then the terminals should be shorted together internally, which you can verify with a multimeter or test light. You probably want to get a circuit diagram first. The Haynes Manuals usually have fairly accurate ones, but they can be hard to read because they are in black and white and because they try to cover several years in one diagram. Earle "vancehuff" > wrote in message ups.com... > I recenlty noticed that my 90 accords cooling fan was running hours > after I turned the engine off, and kept running until the battery was > dead. I recharged the battery and started unpluging sensors while the > fan was running to locate the problem. When that didnt work I > unplugged the cooling fan relay located in the fuse box under the hood. > That finally shut the fan off. I then noticed that I could here some > clicking while I was replacing it. Nothing unusal, but it continued > clicking after it was pluged in (and the fan continued to run). I > unpluged the relay and called it a day. The next morning I pluged the > relay back in and the clicking noise was gone, and the fan wasnt > running. I thought the problem fixed itsefl until I drove it to work > and the damn thing started overheating. Now the fan wont come on at > all. I replaced the relay, and that didnt work (no clicking either). > I dont think there is any power going to the relay, but I dont know how > to check for that. I was told that it could be a bad cooling fan > switch that screws into the radiator. I was going to replace that next > but I want to get some professional feedback before I start replacing > parts. Any advice would be much apreciated. > |
#3
|
|||
|
|||
cooling fan trouble
The Honda newsgroups have seen a fair amount of reports of
the timer for the cooling fan failing. The solution is to replace it. Group.google the archives. Also, see the troubleshooting procedure for cooling fan controls at : http://media.honda.co.uk/car/owner/m...400/16-103.pdf It's for a 91-93 Accord, so it may not dead-on duplicate your 90 Accord. Do not let the car overheat again. You are putting your Honda's head gasket at great risk, resulting in an expensive repair. "vancehuff" > wrote >I recenlty noticed that my 90 accords cooling fan was >running hours > after I turned the engine off, and kept running until the > battery was > dead. I recharged the battery and started unpluging > sensors while the > fan was running to locate the problem. When that didnt > work I > unplugged the cooling fan relay located in the fuse box > under the hood. > That finally shut the fan off. I then noticed that I > could here some > clicking while I was replacing it. Nothing unusal, but it > continued > clicking after it was pluged in (and the fan continued to > run). I > unpluged the relay and called it a day. The next morning > I pluged the > relay back in and the clicking noise was gone, and the fan > wasnt > running. I thought the problem fixed itsefl until I drove > it to work > and the damn thing started overheating. Now the fan wont > come on at > all. I replaced the relay, and that didnt work (no > clicking either). > I dont think there is any power going to the relay, but I > dont know how > to check for that. I was told that it could be a bad > cooling fan > switch that screws into the radiator. I was going to > replace that next > but I want to get some professional feedback before I > start replacing > parts. Any advice would be much apreciated. > |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
1990 cooling fan relay (?) | DanBerger | Ford Mustang | 0 | September 9th 06 11:25 PM |
Toyota pick-up Air Conditioner Intermittant Cooling | jeff | Technology | 1 | August 9th 06 08:42 PM |
combined sensor? SC2: "post update" | DannyB20 | Saturn | 3 | September 11th 05 01:23 PM |
Head gasket or cooling fan circuit breaker? | vettelover47203 | Ford Mustang | 4 | June 10th 05 01:35 AM |
'01 Stratus heater issues | [email protected] | Chrysler | 10 | December 17th 04 12:14 AM |