Honda Car Forum

Hi all,
My teg was running fine yesterday and it just won't start today.
Because I didn't hear the fuel pump humming, so I checked the main
relay. There is nothing wrong with it, so I am thinking it might be
the fuel pump. Before I jack up the car and check the fuel pump, I
just want to know if a clogged fuel filter can cause the fuel pump not
functioning? Like high pressure in the fuel line? BTW, do I have the
replace the washer on the fuel filter if I want to install a new fuel
filter? Thanks in advance.
Max

Max wrote:
> Hi all,
> My teg was running fine yesterday and it just won't start today.
> Because I didn't hear the fuel pump humming, so I checked the main
> relay. There is nothing wrong with it, so I am thinking it might be
> the fuel pump. Before I jack up the car and check the fuel pump, I
> just want to know if a clogged fuel filter can cause the fuel pump not
> functioning? Like high pressure in the fuel line? BTW, do I have the
> replace the washer on the fuel filter if I want to install a new fuel
> filter? Thanks in advance.

Check the 'Fuel Cut Off Switch' otherwise known as the inertia
switch which cuts off the pump if the car hits an obstacle.

HTH
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The normal procedure for a no-start is:

1. Check for fuel
2. Check for spark.

The spark is controlled by an array of things and can go wrong at any
time. Many integras of your age suffer a dead igniter and sometimes
coil.

The best location for humming pump is from inside the car. It's
quitter and very close. You probably know that a pump only runs for
the first few seconds.

Checking for fuel is best when a plug is removed.

>Do I have to install a new washer?

Yes. In the mean time tighten it really tight with one hand or about
8-12lb.

>Can a clogged fuel filter cause the fuel pump not functioning?

No. The fuel pump has a relief valve. Please check for fuel, spark,
and repost, if time permits.
Koiji


> My teg was running fine yesterday and it just won't start today.
> Because I didn't hear the fuel pump humming, so I checked the main
> relay. There is nothing wrong with it, so I am thinking it might be
> the fuel pump. Before I jack up the car and check the fuel pump, I
> just want to know if Like high pressure in the fuel line? BTW, do I have the
> replace the on the fuel filter if I want to install a new fuel
> filter? Thanks in advance.
> Max

According to the fuel gauge, I still have some gas left in the gas tank.
Suppose I have an empty gas tank, will it make the fuel pump not working?
I am pretty sure that the fuel pump is not working, just don't know if it
simply died or other part of the fuel system causing it not functioning.
Is there an easy way to find out?
Thanks.
Max

apple26pie@yahoo.com (Koji San) wrote in message news:<fa1ef2c1.0309210122.40b2b953@posting.google. com>...
> The normal procedure for a no-start is:
>
> 1. Check for fuel
> 2. Check for spark.
>
> The spark is controlled by an array of things and can go wrong at any
> time. Many integras of your age suffer a dead igniter and sometimes
> coil.
>
> The best location for humming pump is from inside the car. It's
> quitter and very close. You probably know that a pump only runs for
> the first few seconds.
>
> Checking for fuel is best when a plug is removed.
>
> >Do I have to install a new washer?
>
> Yes. In the mean time tighten it really tight with one hand or about
> 8-12lb.
>
> >Can a clogged fuel filter cause the fuel pump not functioning?
>
> No. The fuel pump has a relief valve. Please check for fuel, spark,
> and repost, if time permits.
> Koiji
>
>
> > My teg was running fine yesterday and it just won't start today.
> > Because I didn't hear the fuel pump humming, so I checked the main
> > relay. There is nothing wrong with it, so I am thinking it might be
> > the fuel pump. Before I jack up the car and check the fuel pump, I
> > just want to know if Like high pressure in the fuel line? BTW, do I have the
> > replace the on the fuel filter if I want to install a new fuel
> > filter? Thanks in advance.
> > Max

According to the fuel gauge, I still have some gas left in the gas tank.
Suppose I have an empty gas tank, will it make the fuel pump not working?
I am pretty sure that the fuel pump is not working, just don't know if it
simply died or other part of the fuel system causing it not functioning.
Is there an easy way to find out?
Thanks.
Max


apple26pie@yahoo.com (Koji San) wrote in message news:<fa1ef2c1.0309210122.40b2b953@posting.google. com>...
> The normal procedure for a no-start is:
>
> 1. Check for fuel
> 2. Check for spark.
>
> The spark is controlled by an array of things and can go wrong at any
> time. Many integras of your age suffer a dead igniter and sometimes
> coil.
>
> The best location for humming pump is from inside the car. It's
> quitter and very close. You probably know that a pump only runs for
> the first few seconds.
>
> Checking for fuel is best when a plug is removed.
>
> >Do I have to install a new washer?
>
> Yes. In the mean time tighten it really tight with one hand or about
> 8-12lb.
>
> >Can a clogged fuel filter cause the fuel pump not functioning?
>
> No. The fuel pump has a relief valve. Please check for fuel, spark,
> and repost, if time permits.
> Koiji
>
>
> > My teg was running fine yesterday and it just won't start today.
> > Because I didn't hear the fuel pump humming, so I checked the main
> > relay. There is nothing wrong with it, so I am thinking it might be
> > the fuel pump. Before I jack up the car and check the fuel pump, I
> > just want to know if Like high pressure in the fuel line? BTW, do I have the
> > replace the on the fuel filter if I want to install a new fuel
> > filter? Thanks in advance.
> > Max

On 22 Sep 2003 13:16:46 -0700, maxchung2001@yahoo.com (Max) wrote:

>According to the fuel gauge, I still have some gas left in the gas tank.
>Suppose I have an empty gas tank, will it make the fuel pump not working?
>I am pretty sure that the fuel pump is not working, just don't know if it
>simply died or other part of the fuel system causing it not functioning.
>Is there an easy way to find out?

Is 12 volts getting back to the pump for a few seconds when the key is
turned? If so, and the pump isn't running, check it's ground lead
where it connects to the body metal, which can be a rediculously long
way away from the pump. If 12 volts isn't showing up, are you sure
the main relay's fuel pump relay is closing? If it isn't, check its
ground, which goes through the ECU and and is finally grounded on the
engine block on most Honda products.

If you don't own a voltmeter, use a 12V lightbulb and a couple of
wires,

If you plan on doing much work on your car to save money, a shop
manual is a wise investment. Honda manuals have logic diagrams to
follow when fault finding this sort of trouble..

John Ings <nodamned@spam.org> wrote in message news:<4gqumv8ojm1dtlo89l2l9e0mog4g548q2j@4ax.com>. ..
> On 22 Sep 2003 13:16:46 -0700, maxchung2001@yahoo.com (Max) wrote:
>
> >According to the fuel gauge, I still have some gas left in the gas tank.
> >Suppose I have an empty gas tank, will it make the fuel pump not working?
> >I am pretty sure that the fuel pump is not working, just don't know if it
> >simply died or other part of the fuel system causing it not functioning.
> >Is there an easy way to find out?
>
> Is 12 volts getting back to the pump for a few seconds when the key is
> turned? If so, and the pump isn't running, check it's ground lead
> where it connects to the body metal, which can be a rediculously long
> way away from the pump. If 12 volts isn't showing up, are you sure
> the main relay's fuel pump relay is closing? If it isn't, check its
> ground, which goes through the ECU and and is finally grounded on the
> engine block on most Honda products.
>
> If you don't own a voltmeter, use a 12V lightbulb and a couple of
> wires,
>
> If you plan on doing much work on your car to save money, a shop
> manual is a wise investment. Honda manuals have logic diagrams to
> follow when fault finding this sort of trouble..

I do have the manual of my teg. According to the manual, I got myself
a faulty
fuel pump. If I remove the fuel pump from the car (so it does not
connecting to any fuel lines), can I just simply apply 12V DC to the
fuel pump to see if it's working fine? Thanks.
Max

On 22 Sep 2003 21:44:56 -0700, maxchung2001@yahoo.com (Max) wrote:

> If I remove the fuel pump from the car (so it does not
>connecting to any fuel lines), can I just simply apply 12V DC to the
>fuel pump to see if it's working fine? Thanks.

You shouldn't have to remove it. Just disconnect the fuel filter input
up front and place a container under the open end. Jumper a 12 volt
lead from the battery back to the pump, and also a seperate ground.

If the pump is running but not much gas is getting through, check the
little cone-shaped plastic filter at the pump intake. It's there to
filter out large rust particles from the tank and sometimes gets
constipated with them. This is especially common on older cars with
rusty tanks.

If the pump is moving fuel, the next thing to check is proper fuel
pressure, which requires a guage be attached to the fuel rail.

If you do remove the pump, you need to connect a couple of hoses to it
and supply a source of gas to test it properly. Just because it makes
noises doesn't mean it's working right.

maxchung2001@yahoo.com (Max) wrote in message news:<81a45b57.0309222044.1cbf4a9@posting.google.c om>...
> John Ings <nodamned@spam.org> wrote in message news:<4gqumv8ojm1dtlo89l2l9e0mog4g548q2j@4ax.com>. ..
> > On 22 Sep 2003 13:16:46 -0700, maxchung2001@yahoo.com (Max) wrote:
> >
> > >According to the fuel gauge, I still have some gas left in the gas tank.
> > >Suppose I have an empty gas tank, will it make the fuel pump not working?
> > >I am pretty sure that the fuel pump is not working, just don't know if it
> > >simply died or other part of the fuel system causing it not functioning.
> > >Is there an easy way to find out?
> >
> > Is 12 volts getting back to the pump for a few seconds when the key is
> > turned? If so, and the pump isn't running, check it's ground lead
> > where it connects to the body metal, which can be a rediculously long
> > way away from the pump. If 12 volts isn't showing up, are you sure
> > the main relay's fuel pump relay is closing? If it isn't, check its
> > ground, which goes through the ECU and and is finally grounded on the
> > engine block on most Honda products.
> >
> > If you don't own a voltmeter, use a 12V lightbulb and a couple of
> > wires,
> >
> > If you plan on doing much work on your car to save money, a shop
> > manual is a wise investment. Honda manuals have logic diagrams to
> > follow when fault finding this sort of trouble..
>
> I do have the manual of my teg. According to the manual, I got myself
> a faulty
> fuel pump. If I remove the fuel pump from the car (so it does not
> connecting to any fuel lines), can I just simply apply 12V DC to the
> fuel pump to see if it's working fine? Thanks.
> Max

I don't like to second-guess, but....
A faulty fuel pump is possible, but not probable in these cars. How
did you check your main relay? Listening for a click is not always
sufficient. As it was posted previously, check for voltage at the pump
and check the ground.
I will be _very_ surprised if your fuel pump has actually gone
defective.

-k

Will [an empty tank] make the fuel pump not working?

I’ve seen pump seize up when not soaked in fuel. Opened it up
and found some crystals formed on the propellers causing it not to
move. Supplying a high current will get it moving indefinitely. Use a
wire capable of carrying high current (usually a wire with large
diameter.)

Did you mention you heard a click 1.5 second after ignition is turned
on? If you did then the fuel pump or fuse is dead. Supplying 1.5
second of DC to a dry pump should be fine in my experience. Just
don’t run water thru it. It could seize. Hint: This pump is
almost identical to some of the Kia’s 10-year warranty pump.
Koiji

> I do have the manual of my teg. According to the manual, I got myself
> a faulty
> fuel pump. If I remove the fuel pump from the car (so it does not
> connecting to any fuel lines), can I just simply apply 12V DC to the
> fuel pump to see if it's working fine? Thanks.
> Max

> > >According to the fuel gauge, I still have some gas left in the gas tank.
> > >Suppose I have an empty gas tank, will it make the fuel pump not working?
> > >I am pretty sure that the fuel pump is not working, just don't know if it
> > >simply died or other part of the fuel system causing it not functioning.
> > >Is there an easy way to find out?
> >
> > Is 12 volts getting back to the pump for a few seconds when the key is
> > turned? If so, and the pump isn't running, check it's ground lead
> > where it connects to the body metal, which can be a rediculously long
> > way away from the pump. If 12 volts isn't showing up, are you sure
> > the main relay's fuel pump relay is closing? If it isn't, check its
> > ground, which goes through the ECU and and is finally grounded on the
> > engine block on most Honda products.
> >
> > If you don't own a voltmeter, use a 12V lightbulb and a couple of
> > wires,
> >
> > If you plan on doing much work on your car to save money, a shop
> > manual is a wise investment. Honda manuals have logic diagrams to
> > follow when fault finding this sort of trouble..