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2001 EX main relay

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Old Jun 12, 2018
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2001 EX main relay

I have a 2001 EX with 148k miles. I have noticed that it is often hard to start when the engine is warmed up and shut off for a few minutes. However if I turn the key 2 or 3 times first, it will start right up.

I was going to see if there is a problem with the main relay but I'm getting conflicting information. Some sources say the main relay is buried up high to the left of the steering column, and I've read elsewhere that it is behind the glove box. Has anyone here removed theirs and know positively where it is?

I've also seen where you can re-solder fractured solder points on the circuit board to repair it, but I've read elsewhere that there is no circuit board to repair and that the main relay can only be replaced. Does anyone know which is correct? Thank you
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Old Jun 12, 2018
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Re: 2001 EX main relay

Originally Posted by ob1ob
However if I turn the key 2 or 3 times first, it will start right up.
Sounds like a fuel issue to me. Is it cranking normal just not starting? On my '02 when I get low on fuel I can't just get in and start it, I have to leave the key on for ~5 seconds to let the fuel pump prime first. Could be the same thing.
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Old Jun 12, 2018
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Re: 2001 EX main relay

Hi BrotatoChip. Thank you for your reply. I also assumed it was a fuel problem - possibly a clogged fuel filter or failing fuel pump.But it only happens when the engine is warmed up and at any fuel level. It cranks just fine but I need to prime the fuel pump first. Articles like the ones linked below led me to believe it may possibly be the main relay:
http://www.thoughtco.com/help-with-y...problem-281326
https://www.ericthecarguy.com/faq/so...relay-failures
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Old Jun 12, 2018
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Re: 2001 EX main relay

It's got two separate individual main relays behind the glovebox. There might be as many as 4 or 5 relays in the same area, so make sure of which exact one(s) you're looking for.
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Old Jun 13, 2018
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Re: 2001 EX main relay

Originally Posted by ezone
It's got two separate individual main relays behind the glovebox. There might be as many as 4 or 5 relays in the same area, so make sure of which exact one(s) you're looking for.
Thank You!!
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Old Jun 13, 2018
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Re: 2001 EX main relay

The 2 blue ones are the PGM-FI relays.


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Old Jun 13, 2018
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Re: 2001 EX main relay

Still could be a fuel pump/fuel pressure issue too.
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Old Jun 15, 2018
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Re: 2001 EX main relay

Originally Posted by NDNV
Still could be a fuel pump/fuel pressure issue too.
Thank you for the info on the relay locations. I agree that it may be a fuel pressure issue. I am getting a P1456 code. I have ruled out the gas cap as the cause.
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