burn up coil on relay
Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=131448
Printed Date: April 28, 2024 at 5:12 AM
Topic: burn up coil on relay
Posted By: surfer ron
Subject: burn up coil on relay
Date Posted: May 20, 2012 at 10:34 AM
what makes the coil winding bolw on 12 volt main relay on honda civic ------------- surfer ron
Replies:
Posted By: KPierson
Date Posted: May 20, 2012 at 3:57 PM
Running too high of voltage through the coil will increase the current which can cause the coil to burn up.
What is the relay for?
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Kevin Pierson
Posted By: surfer ron
Date Posted: May 20, 2012 at 6:31 PM
hi they call it the main realy for the fuel pump on a 1994 honda delsol
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surfer ron
Posted By: KPierson
Date Posted: May 20, 2012 at 7:35 PM
Are you sure the coil is burning up and not the contacts? I have rarely, if ever, seen the coil fail. The contacts are the "wear" part.
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Kevin Pierson
Posted By: i am an idiot
Date Posted: May 21, 2012 at 9:09 AM
I had a 94 Civic that had a strange problem with that relay. The day after a hard rain, my car would not start. Leave it for a few hours it would start. I discovered that if I left the key on for a minute or 2 you would hear the relay click and it would start. I never took the time to troubleshoot it, I would just wait the minute before starting.
Posted By: awdeclipse
Date Posted: May 21, 2012 at 11:43 AM
Haha. Like a "wait to start" bulb but on a gas engine. That is great.
Posted By: surfer ron
Date Posted: May 21, 2012 at 4:46 PM
i now have burend up three coils on a 1994 honda delsol its call ed the main relay and runs the fule pump can you by pas it i realy dont know what to do about finding the problem
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surfer ron
Posted By: howie ll
Date Posted: May 21, 2012 at 5:26 PM
No point replacing until you find out the problem, work back from your last post. In normal operation I've seen these coils last 20 years plus.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: howie ll
Date Posted: May 21, 2012 at 5:28 PM
By the way the word is BURNT and have you
a) Blown any light bulbs?
b) Jump started your car from another vehicle recently?
Suspect alternator.
I've never even seen a burnt out coil, read what Kevin Pierson says in the previous thread.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: KPierson
Date Posted: May 21, 2012 at 5:39 PM
How are you testing the coil to prove it is burnt up? As mentioned in the other thread I would be more suspect of the contacts not the coil. If it is a contact problem you could be burning them up by a fuel pump that is on its way out.
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Kevin Pierson
Posted By: i am an idiot
Date Posted: May 21, 2012 at 8:58 PM
Howie, he is not talking about an ignition coil. He is talking about the coil of the main relay. It powers the fuel pump, and I think the ignition.
Posted By: howie ll
Date Posted: May 22, 2012 at 1:29 AM
Not relevant Craig, what's causing the problem?
It appears to be ongoing.
Has the OP removed the offending item and flashed the coil contacts to see if the coil is working, I'm with KP on this one.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: i am an idiot
Date Posted: May 22, 2012 at 8:53 AM
I have never inspected one. I do know that it is a common problem with Civics of that era.
Posted By: howie ll
Date Posted: May 22, 2012 at 5:29 PM
Craig, over we here we have a guy called "Honest John" yes really!
He runs an answer section in the motoring section of a leading daily newspaper plus he has a web site listing all known problems for every vehicle sold here but no manufacturer's info, his data base includes dealers, traders and the rescue organisations, I'll take a look tomorrow.
I was also wondering if there's an equivalent in the US.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
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