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  #1 (permalink)  
Old 24 Aug 2007, 11:19 am
cea1
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Default Engine Won't Start

I have a 1991 Acura Legend that periodically fails to start. The seems to
have on humid weather days. I thought that maybe there is too much
pressure in the fuel system, so I loosen the fuel tank cap and quite a bit
of pressure escape, but the engine still failed to start.

When I allow the car sit until later in the day or into the evening it
starts right away.

What's the possible problem?

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  #2 (permalink)  
Old 24 Aug 2007, 11:38 am
I. Care
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Default Re: Engine Won't Start

In article
<d4aef9584e277e4e8b618b5a685c040d@localhost.talkab outautos.com>, cea1
@comcast.net says...
> I have a 1991 Acura Legend that periodically fails to start. The seems to
> have on humid weather days. I thought that maybe there is too much
> pressure in the fuel system, so I loosen the fuel tank cap and quite a bit
> of pressure escape, but the engine still failed to start.
>
> When I allow the car sit until later in the day or into the evening it
> starts right away.
>
> What's the possible problem?
>
>

You need 3 things to make an engine run: Air, Fuel, Spark

Does the engine try to start then quit? Do you have spark? Do you have
fuel pressure?
--
I. Care
Address fake until the SPAM goes away ;-}
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  #3 (permalink)  
Old 24 Aug 2007, 11:55 am
Jim Yanik
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Default Re: Engine Won't Start

"cea1" <cea1@comcast.net> wrote in
news:d4aef9584e277e4e8b618b5a685c040d@localhost.ta lkaboutautos.com:

> I have a 1991 Acura Legend that periodically fails to start. The seems
> to have on humid weather days. I thought that maybe there is too much
> pressure in the fuel system, so I loosen the fuel tank cap and quite a
> bit of pressure escape, but the engine still failed to start.
>
> When I allow the car sit until later in the day or into the evening it
> starts right away.
>
> What's the possible problem?
>


main relay;it runs the fuel pump,gets cracked solder joints internally,hot
temps cause it to not work.It's a common problem across many Honda/Acura
products;the same relay is used in all of them,it seems.
It's usually located up under the dash on the driver's side footwell.

see www.tegger.com

--
Jim Yanik
jyanik
at
kua.net
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  #4 (permalink)  
Old 24 Aug 2007, 12:05 pm
cea1
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Default Re: Engine Won't Start

I. Care,

No, the engine doesn't try to start, it just spends over-and-over. I'm not
sure about spark, I'm away from home or wrenches at the moment. I'm not
sure about fuel pressure. But. when I took the fuel cap off there was a
lot of pressure in the tank, does that type of pressure mean anything in
termof fuel system pressure?

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  #5 (permalink)  
Old 24 Aug 2007, 12:19 pm
cea1
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Default Re: Engine Won't Start

Jim,

I have the shop manual for the car, I'll take a look to see where the
relay is located. Will there be any outward sign(s) of a problem with this
relay? I'm asking about outward sign(s)because you're advising me that the
relay gets cracked solder joints internally. Also, is there someway to
troubleshoot this relay?

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  #6 (permalink)  
Old 24 Aug 2007, 01:20 pm
Tegger
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Default Re: Engine Won't Start

"cea1" <cea1@comcast.net> wrote in
news:1aede54de504a4683973f00b015e1192@localhost.ta lkaboutautos.com:

> Jim,
>
> I have the shop manual for the car, I'll take a look to see where the
> relay is located. Will there be any outward sign(s) of a problem with
> this relay? I'm asking about outward sign(s)because you're advising me
> that the relay gets cracked solder joints internally. Also, is there
> someway to troubleshoot this relay?
>
>



In case you never actually tried looking where Jim said, I'll give you a
direct link:
http://www.tegger.com/hondafaq/start...html#mainrelay

Pay attention to the red text. Check out the behavior of the car relative
to the description in red, then diagnose further.

--
Tegger

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
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  #7 (permalink)  
Old 24 Aug 2007, 01:56 pm
Michael Pardee
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Default Re: Engine Won't Start

"Tegger" <tegger@tegger.c0m> wrote in message
news:Xns999691AB63FB2tegger@207.14.116.130...
> "cea1" <cea1@comcast.net> wrote in
> news:1aede54de504a4683973f00b015e1192@localhost.ta lkaboutautos.com:
>
>> Jim,
>>
>> I have the shop manual for the car, I'll take a look to see where the
>> relay is located. Will there be any outward sign(s) of a problem with
>> this relay? I'm asking about outward sign(s)because you're advising me
>> that the relay gets cracked solder joints internally. Also, is there
>> someway to troubleshoot this relay?
>>
>>

>
>
> In case you never actually tried looking where Jim said, I'll give you a
> direct link:
> http://www.tegger.com/hondafaq/start...html#mainrelay
>
> Pay attention to the red text. Check out the behavior of the car relative
> to the description in red, then diagnose further.
>
> --
> Tegger
>
> The Unofficial Honda/Acura FAQ
> www.tegger.com/hondafaq/
>


(To the OP) One more thing - if you do check for a spark, be sure to read
TeGGeR's instructions for that. Leaving the spark no place to go will likely
destroy the coil.

But I agree: focus on the main relay at this point until diagnostics lead
you away. It's so common it's the first thing we think of for symptoms like
yours.

Mike



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  #8 (permalink)  
Old 24 Aug 2007, 01:59 pm
cea1
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Default Re: Engine Won't Start

Tegger,

Thanks for the troubleshooting info. I'll give it a go and let you know
how things turned out.

cea1

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  #9 (permalink)  
Old 24 Aug 2007, 02:27 pm
cea1
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Default Re: Engine Won't Start

Thanks, Mike!

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  #10 (permalink)  
Old 24 Aug 2007, 08:32 pm
Jim Yanik
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Default Re: Engine Won't Start

"cea1" <cea1@comcast.net> wrote in
news:1aede54de504a4683973f00b015e1192@localhost.ta lkaboutautos.com:

> Jim,
>
> I have the shop manual for the car, I'll take a look to see where the
> relay is located. Will there be any outward sign(s) of a problem with
> this relay? I'm asking about outward sign(s)because you're advising me
> that the relay gets cracked solder joints internally. Also, is there
> someway to troubleshoot this relay?
>


if you do take it out,you can take the outer cover off(it snaps off easily)
and RESOLDER the PCB joints(if you know how to solder and have the
tools),and it will work fine afterwards and not fail for many many
years.It's very easy.

Then you don't have to pay $50 or more for a new relay that could(will)
develop the same fault.

--
Jim Yanik
jyanik
at
kua.net
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