Main Relay Clicking Fast While Cranking
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From: Suburbs of Philadelphia
After I finally got my car running, it started to get harder and harder to start, and while cranking, the Main relay would click really really fast. Takin8ez on here, sent me his old relay for free, today I put that on and it does the same thing. But this time I noticed the ECU's LED flashes every time the relay clicks, so it's flashing really fast.
About a month agot I checked and cleaned all my ground, so I know they are good, and I know a dying battery could cause the clicking, but I have jumper cables hooked up to another car, so it's not like it's not getting enough power.
I do not have an alternator belt on right now, I was waiting till I get a new one, and I haven't got around to it yet.
Any input is appreciated.
About a month agot I checked and cleaned all my ground, so I know they are good, and I know a dying battery could cause the clicking, but I have jumper cables hooked up to another car, so it's not like it's not getting enough power.
I do not have an alternator belt on right now, I was waiting till I get a new one, and I haven't got around to it yet.
Any input is appreciated.
After I finally got my car running, it started to get harder and harder to start, and while cranking, the Main relay would click really really fast. Takin8ez on here, sent me his old relay for free, today I put that on and it does the same thing. But this time I noticed the ECU's LED flashes every time the relay clicks, so it's flashing really fast.
Please include the precise behavior of the Check Engine light, including any times (as in seconds duration) of specific events that you may observe.
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From: Suburbs of Philadelphia
I'm not exactly sure but I think my dummy lights were going on and off with the clicks. Which would make me assume battery connection or ground, but they are good.
When I leave it at "II" nothing really happens, I can hardly hear the fuel pump now too, I'm not even sure it primed this time.
When I leave it at "II" nothing really happens, I can hardly hear the fuel pump now too, I'm not even sure it primed this time.
I'm not exactly sure but I think my dummy lights were going on and off with the clicks. Which would make me assume battery connection or ground, but they are good.
When I leave it at "II" nothing really happens, I can hardly hear the fuel pump now too, I'm not even sure it primed this time.
When I leave it at "II" nothing really happens, I can hardly hear the fuel pump now too, I'm not even sure it primed this time.
When you leave the key on "II", does the Check Engine light come on for TWO SECONDS, then GO OFF? And during the time it's ON, does the gas pump whine? If you're not sure, remove the gas cap and have somebody listen at the open filler neck as the key is turned to "II".
Have you checked battery voltage with a multimeter? If so, do you see 12.65V and no less? Engine OFF, key OUT, I mean.
Please answer all questions, not just one.
check engine light doesnt stay on when your at II?...I replaced mine after the clicking and havent had a problem since...its possible the one he sent you may have been faulty as well
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From: Suburbs of Philadelphia
You're asking for help, and I'm trying to offer it. Vagueness on your part helps nobody.
When you leave the key on "II", does the Check Engine light come on for TWO SECONDS, then GO OFF? And during the time it's ON, does the gas pump whine? If you're not sure, remove the gas cap and have somebody listen at the open filler neck as the key is turned to "II".
Have you checked battery voltage with a multimeter? If so, do you see 12.65V and no less? Engine OFF, key OUT, I mean.
Please answer all questions, not just one.
When you leave the key on "II", does the Check Engine light come on for TWO SECONDS, then GO OFF? And during the time it's ON, does the gas pump whine? If you're not sure, remove the gas cap and have somebody listen at the open filler neck as the key is turned to "II".
Have you checked battery voltage with a multimeter? If so, do you see 12.65V and no less? Engine OFF, key OUT, I mean.
Please answer all questions, not just one.
And I would check the voltage at the battery, but it would be pointless, as the battery is dead, that's why I am using jumper cables.
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If FCM gives you a working solution in his PM, it would be nice if it could be shared with those in this thread.
Like el crapitan said, I would inspect all the exposed wires in your bay. Specifically the injector wires. If there's a crack in the insulation and its touching metal it'll give you problems. Unfortunately, these problems are pesky and time consuming most of the time. Hope it helps.
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From: Suburbs of Philadelphia
Thread Starter
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Joined: May 2010
Posts: 3,706
Likes: 2
From: Suburbs of Philadelphia
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didn't get a chance to try to diagnose it today, I will tomorrow, and post up FCM's advice.

