Dave Combs

My '90 LX 5.0 has developed a miss which has been determined by my mechanic
to being clogged injector(s)
He wants to pull the intake manifold to run some tests to determine which
one(s) it is. Since I plan to keep the car forever it seems to make more
sense just to replace them all even if it costs more now.

Any thoughts?

Dave

Kruse

Dave Combs wrote:
> My '90 LX 5.0 has developed a miss which has been determined by my mechanic
> to being clogged injector(s)
> He wants to pull the intake manifold to run some tests to determine which
> one(s) it is. Since I plan to keep the car forever it seems to make more
> sense just to replace them all even if it costs more now.
> Any thoughts?
> Dave

In a perfect world it would be nice to replace fuel injectors every
year. The cost of one fuel injector is bad enough, but have you priced
an entire set?

IsellJeeps

about 200 for 19lb



"Dave Combs" <jdcombs@socal.rr.com> wrote in message
news:D0BUe.2447$Cg.1539@tornado.socal.rr.com...
> My '90 LX 5.0 has developed a miss which has been determined by my
mechanic
> to being clogged injector(s)
> He wants to pull the intake manifold to run some tests to determine which
> one(s) it is. Since I plan to keep the car forever it seems to make more
> sense just to replace them all even if it costs more now.
>
> Any thoughts?
>
> Dave
>
>

Michael Johnson, PE

Dave Combs wrote:
> My '90 LX 5.0 has developed a miss which has been determined by my mechanic
> to being clogged injector(s)
> He wants to pull the intake manifold to run some tests to determine which
> one(s) it is. Since I plan to keep the car forever it seems to make more
> sense just to replace them all even if it costs more now.
>
> Any thoughts?

First, he doesn't need to pull the manifold to remove the injectors.
Maybe pulling the upper might make the job easier. I suggest getting a
can of BG 44K and run it through the fuel system. If might unclog the
injector and only cost you $20. Depending on what you're being charged
for cleaning you might just want to buy a new set of injectors and be
done with it. Also, there are many, many used sets that can be had for
cheap on most Mustang web sites.

IsellJeeps

buying used injectors is a little weiry..... I dont mind used parts but used
injectors could be clogged as well



"Michael Johnson, PE" <cds@erols.com> wrote in message
news:0pWdnYQTcpJwaL_eRVn-rg@giganews.com...
> Dave Combs wrote:
> > My '90 LX 5.0 has developed a miss which has been determined by my
mechanic
> > to being clogged injector(s)
> > He wants to pull the intake manifold to run some tests to determine
which
> > one(s) it is. Since I plan to keep the car forever it seems to make
more
> > sense just to replace them all even if it costs more now.
> >
> > Any thoughts?
>
> First, he doesn't need to pull the manifold to remove the injectors.
> Maybe pulling the upper might make the job easier. I suggest getting a
> can of BG 44K and run it through the fuel system. If might unclog the
> injector and only cost you $20. Depending on what you're being charged
> for cleaning you might just want to buy a new set of injectors and be
> done with it. Also, there are many, many used sets that can be had for
> cheap on most Mustang web sites.
>

Michael Johnson, PE

Injectors don't go bad very often. When they are off the car they can
be cleaned easily and then used as replacements when, and if, the ones
on the car stop working. Most all times the reason the stock injectors
are sold is because the owner did mods that require greater fuel
delivery, not because they are clogged.

IsellJeeps wrote:
> buying used injectors is a little weiry..... I dont mind used parts but used
> injectors could be clogged as well
>
>
>
> "Michael Johnson, PE" <cds@erols.com> wrote in message
> news:0pWdnYQTcpJwaL_eRVn-rg@giganews.com...
>
>>Dave Combs wrote:
>>
>>>My '90 LX 5.0 has developed a miss which has been determined by my
>
> mechanic
>
>>>to being clogged injector(s)
>>>He wants to pull the intake manifold to run some tests to determine
>
> which
>
>>>one(s) it is. Since I plan to keep the car forever it seems to make
>
> more
>
>>>sense just to replace them all even if it costs more now.
>>>
>>>Any thoughts?
>>
>>First, he doesn't need to pull the manifold to remove the injectors.
>>Maybe pulling the upper might make the job easier. I suggest getting a
>>can of BG 44K and run it through the fuel system. If might unclog the
>>injector and only cost you $20. Depending on what you're being charged
>>for cleaning you might just want to buy a new set of injectors and be
>>done with it. Also, there are many, many used sets that can be had for
>>cheap on most Mustang web sites.
>>
>
>
>

Joe

The obvious solution is to buy a new set of 30lb injectors and a
little accessory called a supercharger. All problems solved.


"Michael Johnson, PE" <cds@erols.com> wrote in
news:mIKdnb7M36jysb7eRVn-2w@giganews.com:

> Injectors don't go bad very often. When they are off the car they
> can be cleaned easily and then used as replacements when, and if,
> the ones on the car stop working. Most all times the reason the
> stock injectors are sold is because the owner did mods that require
> greater fuel delivery, not because they are clogged.
>
> IsellJeeps wrote:
>> buying used injectors is a little weiry..... I dont mind used parts
>> but used injectors could be clogged as well
>>
>>
>>
>> "Michael Johnson, PE" <cds@erols.com> wrote in message
>> news:0pWdnYQTcpJwaL_eRVn-rg@giganews.com...
>>
>>>Dave Combs wrote:
>>>
>>>>My '90 LX 5.0 has developed a miss which has been determined by my
>>
>> mechanic
>>
>>>>to being clogged injector(s)
>>>>He wants to pull the intake manifold to run some tests to
>>>>determine
>>
>> which
>>
>>>>one(s) it is. Since I plan to keep the car forever it seems to
>>>>make
>>
>> more
>>
>>>>sense just to replace them all even if it costs more now.
>>>>
>>>>Any thoughts?
>>>
>>>First, he doesn't need to pull the manifold to remove the
>>>injectors. Maybe pulling the upper might make the job easier. I
>>>suggest getting a can of BG 44K and run it through the fuel system.
>>> If might unclog the injector and only cost you $20. Depending on
>>>what you're being charged for cleaning you might just want to buy a
>>>new set of injectors and be done with it. Also, there are many,
>>>many used sets that can be had for cheap on most Mustang web sites.
>>>
>>
>>
>>
>

Michael Johnson, PE

Joe wrote:
> The obvious solution is to buy a new set of 30lb injectors and a
> little accessory called a supercharger. All problems solved.

Except for the occasional blown head gasket. ;)

> "Michael Johnson, PE" <cds@erols.com> wrote in
> news:mIKdnb7M36jysb7eRVn-2w@giganews.com:
>
>
>>Injectors don't go bad very often. When they are off the car they
>>can be cleaned easily and then used as replacements when, and if,
>>the ones on the car stop working. Most all times the reason the
>>stock injectors are sold is because the owner did mods that require
>>greater fuel delivery, not because they are clogged.
>>
>>IsellJeeps wrote:
>>
>>>buying used injectors is a little weiry..... I dont mind used parts
>>>but used injectors could be clogged as well
>>>
>>>
>>>
>>>"Michael Johnson, PE" <cds@erols.com> wrote in message
>>>news:0pWdnYQTcpJwaL_eRVn-rg@giganews.com...
>>>
>>>
>>>>Dave Combs wrote:
>>>>
>>>>
>>>>>My '90 LX 5.0 has developed a miss which has been determined by my
>>>
>>>mechanic
>>>
>>>
>>>>>to being clogged injector(s)
>>>>>He wants to pull the intake manifold to run some tests to
>>>>>determine
>>>
>>>which
>>>
>>>
>>>>>one(s) it is. Since I plan to keep the car forever it seems to
>>>>>make
>>>
>>>more
>>>
>>>
>>>>>sense just to replace them all even if it costs more now.
>>>>>
>>>>>Any thoughts?
>>>>
>>>>First, he doesn't need to pull the manifold to remove the
>>>>injectors. Maybe pulling the upper might make the job easier. I
>>>>suggest getting a can of BG 44K and run it through the fuel system.
>>>>If might unclog the injector and only cost you $20. Depending on
>>>>what you're being charged for cleaning you might just want to buy a
>>>>new set of injectors and be done with it. Also, there are many,
>>>>many used sets that can be had for cheap on most Mustang web sites.
>>>>
>>>
>>>
>>>
>

bradtx

Dave, If you plan to keep the car "as is" then a new set of injectors
makes sense. The two main reasons for injector failure is the solenoid
itself and that the internal filter is clogged.

bradtx

Dave Combs

Thanks to all of you for your advice and comments. As I drive less than
5,000 miles per year it makes sense to "go all the way" (Oh well, what that
used to mean!) and replace all the injectors. Car only has 105,000 miles
with low insurance and license fees so why not. I do plan the keep the car
forever. The most it could cost me is the equivalent of one or two new car
payments.

Thanks again to all.

Dave
"Dave Combs" <jdcombs@socal.rr.com> wrote in message
news:D0BUe.2447$Cg.1539@tornado.socal.rr.com...
> My '90 LX 5.0 has developed a miss which has been determined by my
mechanic
> to being clogged injector(s)
> He wants to pull the intake manifold to run some tests to determine which
> one(s) it is. Since I plan to keep the car forever it seems to make more
> sense just to replace them all even if it costs more now.
>
> Any thoughts?
>
> Dave
>
>