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Main Relay Questions

 
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Old 07-08-2010, 10:34 AM
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Main Relay Questions

So i think my relay has been going bad. Had all the classic issues of trouble starting when hot in the cabin, cutting out, starting for an instant then stopping, etc. I soldered it and havent had an issue since (about a week and a half ago) and today when i went out to the car i turned the key over to on, and the only thing that lit up was the stereo. Dash readouts (fuel/temp) didnt come on and when i tried to start the car it started then stopped immediately (like when the relay had issues). Did this several times, then on say...the 4th try...the dash lit back up and started right up and hummed as usual. So is it the relay internals not just the solder joints? Or something else?
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Old 07-08-2010, 10:47 AM
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Re: Main Relay Questions

yes and yes, a relay has mving parts and points that must pass electricity; aka they arc. Arcing causes carbon build up.... carbon build up, just like on your spark plugs, prevents adequate continuity.

Replace the Relay and be worry free for years and years.
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People say the biggest difference you can change to your system is to add a subwoofer. Which is true, it is the most noticable difference. But running an amplifier to a good set of speakers makes the BEST difference.

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Old 07-08-2010, 11:34 AM
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Re: Main Relay Questions

Cool thats what im thinking. It still had some of the same tendancies of the faulty relay as mentioned...it does have nearly 300k on the clock. lol
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Old 07-20-2010, 09:01 AM
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Re: Main Relay Questions

Just to add, the evening i posted this it died again. If i clicked the ignition over enough you could feel when the relay "worked" and after about 20 mins on the side of the road waiting for it to cool down i got it to work again. Went out of town last week but ordered a main relay yesterday and it should be in today. You could feel when it actually fully worked. I think the solder fixed one problem, but opened up another now that everything was getting adequate power. Would it be a good idea to check out the connections on the new one and "fix" it?
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Old 07-20-2010, 11:57 AM
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Re: Main Relay Questions

here is something else I would like to add. Especially because you drive a 4th gen.

I discovered a common tendency for the one little phillips screw, holding the rotor on to the shaft, likes to come loose. I too thought (because it acted just like it) my main relay was the problem. After replacing said relay, and the car not starting, my friend came over and started pulling stuff apart and testing for issues. We found that the rotor had literally been "flopping" around inside the cap tearing stuff up.

moral of the story, Lock-tite is your best friend.

Not saying that is your issue, but it is what we found was the starting problem (and some lurching issues) with my car.
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People say the biggest difference you can change to your system is to add a subwoofer. Which is true, it is the most noticable difference. But running an amplifier to a good set of speakers makes the BEST difference.

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Old 07-20-2010, 12:44 PM
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Re: Main Relay Questions

I think i remember seeing that. Is it on the inside of the relay itself on the "back" side?
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Old 07-20-2010, 12:57 PM
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Re: Main Relay Questions

lulz.... I am talking about the Distrubutor under the hood.
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People say the biggest difference you can change to your system is to add a subwoofer. Which is true, it is the most noticable difference. But running an amplifier to a good set of speakers makes the BEST difference.

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Old 07-20-2010, 08:48 PM
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Re: Main Relay Questions

Oh. lol. Woops. Will have to possibly check that, but this isnt happy from the beginning...would the rotor still cause everything on the dash to not light up as below?

On a side note, replaced the relay...still had the issue. In playing with the car...i think it might have something to do with the ignition itself? If i switch to key to "on" before start nothing in the dash will light up until i kick it over to start. But when it falls back to "on" it immediately cuts off. If i wiggle the ignition a little on "on" everything will light up and the relay kicks over (did this with the old relay and now the new one). If it sits in just the right spot on "on" everything stays up and on and happy. If i wiggle it a little, most of the time all the lights go out and the relay clicks over/off.
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Old 07-21-2010, 04:33 PM
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Re: Main Relay Questions

Help....anyone?
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Old 07-21-2010, 05:22 PM
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Re: Main Relay Questions

After doing some digging im pretty sure it's the ignition switch wearing out since it seems to be losing contact on the "on" position. My question now is advance sells an ingnition switch replacement. Looks like maybe the switch itself the plugs into the back of where the key goes. Are they fibbing to me it can be replaced without needing a whole new ignition (with key and all) or does it come apart for replacement?
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Old 07-21-2010, 05:31 PM
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Re: Main Relay Questions

Part from advance:

Ignition Switch by BWD - Part CS201 - Advance Auto Parts

Autozone:

Ignition Switch | 1993 Honda Prelude 4 Cylinders 2 2.3L MFI DOHC | AutoZone.com

Napa:

Store Locator | NAPA Online
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Old 07-21-2010, 05:35 PM
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Re: Main Relay Questions

yes, you can remove the switch itself, there is a great new write up in the D.I.Y. section for doing just that.
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Originally Posted by shatterbox View Post
People say the biggest difference you can change to your system is to add a subwoofer. Which is true, it is the most noticable difference. But running an amplifier to a good set of speakers makes the BEST difference.

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An In Depth Look At Relays
The "Big Three" DIY Install
Alarm & Remote Start DIY
My Babies Thread
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Old 07-21-2010, 05:36 PM
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Re: Main Relay Questions

Excellent. Pretty sure thats it as i can wiggle it and hold it in the right place and it "works" while i hold it. Anyone need a main relay? lol
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Old 07-21-2010, 05:41 PM
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Re: Main Relay Questions

At work so i cant see the pics...is this the thread?

INT: 4th Gen - Ignition Lock Cylinder Replace and Repin

After looking at parts and reading a suggestion on here to repair the contacts, im guessing all of the electrical interworkings of the switch are in the very end of the ignition? And replacing the hardness with all the connections on the napa/autozone parts will do the trick? The key section of the ignition works fine i believe, it's the contacts in the end of the switch itself that are worn out. As the column switches and if i hold it just right/wiggle it the dash lights up.
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Last edited by twovalvekid; 07-21-2010 at 08:57 PM.
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