Replacement "99 Explorer IAC...longish

Hi folks,

About a year ago I had a problem with the IAC on my '99 Ford Explorer
SUV 4.0L causing bad idle or stall. Vehicle has now 129,500km. At the
time other things were going on as well, such as pinging under load when
driving on the highway with CC on and starting an uphill climb. It
didn't take that much of a hill either for the vehicle to shift down a gear.

At that time I went onto the internet and this newsgroup to find out
what was wrong with the vehicle, not knowing at that time that it could
be the IAC, didn't even know what that was. Two main suggestions we
1. to clean and 2. to replace.

I decided to take the unit off the engine, easy to do, takes longer to
find the correct size socket than to remove, and cleaned it with WD-40.
After thoroughly cleaning I replaced the unit and fired up the engine.
This seemd to fix the problem, idle was smooth, ran better so I left it
like that and ran the vehicle all summer.

Just as winter was getting a good hold on us, the unit failed again.
This time I drove into town to replace the unit with a brand new one.
Funny thing, I went to the Ford dealer and asked if they had one in
stock. The person behind the counter asked which 4.0L engine I had, I
said, I don't know, all I know is that it's a 4.0L, is there any other
kind? She said I would have to come back once I found out so she could
order one. Cost was for one, 124.00CDN for one type and 189.00CDN for
the other type.

I decided to drop into another parts dealer who I knew dealed with Ford
parts. Cost here was 109.00. Same question, which 4.0l engine? I said I
didn't know, the parts person asked me for my VIN number. On the VIN
number is the engine code and from that he was able to go back and get
the correct unit.

I got home, took the old unit off and replaced with th new one. Fired up
the engine, purred like a kitten

Now I noticed something else. Before this replacement there was still
the consistant ping under load. That is now gone....totally! Also when
in cruise, it now takes a seriosly steep grade before it shifts down,
instead it powers up and contnues up the hill with ease. Also notice
that when slowing down from highway speed that the vehicle slows fast
now, before it felt like free wheeling.

So to end this long story, I just want to thank all and everyone who
helped me at the time. Sure feels good to drive a vehicle that feels
like brand new again!

Thanks again and a Merry Christmas to all!

Allan

Glad you got your Explorer up and running good. i had a little bit of
a problem with my IAC not too long ago. funny how such a small part
can cause so much trouble huh. also, for future reference, if
anyone asks which 4.0L engine you have, take a look at the engine
itself. your '99 and my '00 model have either a 4.0L SOHC (single
overhead cam) or 4.0L OHV (overhead valve). the SOHC has a plastic
cover on top of the engine that says "4.0L SOHC" on it ( lol, duh ),
while the OHV does not have a cover at all, and simply says "4.0L EFI"
or just "EFI" on top of the engine. also you can check near the back
of your owner's manual and it will have pictures that identify each
engine as they look under the hood. anyway, hope your Explorer
continues performing well for you! Merry Christmas as well!

aklmfreak
2000 Ford Explorer Sport
4.0L SOHC
Flowmaster Dual Exhaust

Also, the eighth digit in the VIN tells you which engine it is. For the OHV
it's "X" and for the SOHC it's "E" and for the V8 it's "P."

This is only the second time I've heard of cleaning it with WD-40. The
first time was last week on my '97. I'd cleaned it with some solvent
previously and my daughter said it stalled while she was shifting from D to
R so I figured it was getting stuck. So far so good.


> wrote in message
...
> Glad you got your Explorer up and running good. i had a little bit of
> a problem with my IAC not too long ago. funny how such a small part
> can cause so much trouble huh. also, for future reference, if
> anyone asks which 4.0L engine you have, take a look at the engine
> itself. your '99 and my '00 model have either a 4.0L SOHC (single
> overhead cam) or 4.0L OHV (overhead valve). the SOHC has a plastic
> cover on top of the engine that says "4.0L SOHC" on it ( lol, duh ),
> while the OHV does not have a cover at all, and simply says "4.0L EFI"
> or just "EFI" on top of the engine. also you can check near the back
> of your owner's manual and it will have pictures that identify each
> engine as they look under the hood. anyway, hope your Explorer
> continues performing well for you! Merry Christmas as well!
>
> aklmfreak
> 2000 Ford Explorer Sport
> 4.0L SOHC
> Flowmaster Dual Exhaust

My engine is the OHV then because it does have the 4.0L EFI on the top
of the engine. Thanks for that!

Allan

wrote:
> Glad you got your Explorer up and running good. i had a little bit of
> a problem with my IAC not too long ago. funny how such a small part
> can cause so much trouble huh. also, for future reference, if
> anyone asks which 4.0L engine you have, take a look at the engine
> itself. your '99 and my '00 model have either a 4.0L SOHC (single
> overhead cam) or 4.0L OHV (overhead valve). the SOHC has a plastic
> cover on top of the engine that says "4.0L SOHC" on it ( lol, duh ),
> while the OHV does not have a cover at all, and simply says "4.0L EFI"
> or just "EFI" on top of the engine. also you can check near the back
> of your owner's manual and it will have pictures that identify each
> engine as they look under the hood. anyway, hope your Explorer
> continues performing well for you! Merry Christmas as well!
>
> aklmfreak
> 2000 Ford Explorer Sport
> 4.0L SOHC
> Flowmaster Dual Exhaust

I had noticed on the old IAC that there is a little rod that was getting
stuck, the WD-40 had freed that up. But obviously it's only a temporary
fix, at least it was with mine. Mine was all crudded up with some hard
black carbon and whatever else in the channel the little rod moves back
and forth in, which I assume causes sticking and possible wear.

Allan

Ulysses wrote:
> Also, the eighth digit in the VIN tells you which engine it is. For the OHV
> it's "X" and for the SOHC it's "E" and for the V8 it's "P."
>
> This is only the second time I've heard of cleaning it with WD-40. The
> first time was last week on my '97. I'd cleaned it with some solvent
> previously and my daughter said it stalled while she was shifting from D to
> R so I figured it was getting stuck. So far so good.
>
>
> > wrote in message
> ...
>
>>Glad you got your Explorer up and running good. i had a little bit of
>>a problem with my IAC not too long ago. funny how such a small part
>>can cause so much trouble huh. also, for future reference, if
>>anyone asks which 4.0L engine you have, take a look at the engine
>>itself. your '99 and my '00 model have either a 4.0L SOHC (single
>>overhead cam) or 4.0L OHV (overhead valve). the SOHC has a plastic
>>cover on top of the engine that says "4.0L SOHC" on it ( lol, duh ),
>>while the OHV does not have a cover at all, and simply says "4.0L EFI"
>>or just "EFI" on top of the engine. also you can check near the back
>>of your owner's manual and it will have pictures that identify each
>>engine as they look under the hood. anyway, hope your Explorer
>>continues performing well for you! Merry Christmas as well!
>>
>>aklmfreak
>>2000 Ford Explorer Sport
>>4.0L SOHC
>>Flowmaster Dual Exhaust
>
>
>

If I'm not mistaken, you can get IAC valve thru Oreilly/Autozone. Probably
cheaper than dealer-not sure of quality.
"Allan" > wrote in message
...
My engine is the OHV then because it does have the 4.0L EFI on the top
of the engine. Thanks for that!

Allan

wrote:
> Glad you got your Explorer up and running good. i had a little bit of
> a problem with my IAC not too long ago. funny how such a small part
> can cause so much trouble huh. also, for future reference, if
> anyone asks which 4.0L engine you have, take a look at the engine
> itself. your '99 and my '00 model have either a 4.0L SOHC (single
> overhead cam) or 4.0L OHV (overhead valve). the SOHC has a plastic
> cover on top of the engine that says "4.0L SOHC" on it ( lol, duh ),
> while the OHV does not have a cover at all, and simply says "4.0L EFI"
> or just "EFI" on top of the engine. also you can check near the back
> of your owner's manual and it will have pictures that identify each
> engine as they look under the hood. anyway, hope your Explorer
> continues performing well for you! Merry Christmas as well!
>
> aklmfreak
> 2000 Ford Explorer Sport
> 4.0L SOHC
> Flowmaster Dual Exhaust

You are correct in your statement. I have bought two (2) IAC's from Autozone
for $22.00 and change. Sure beats the $140.00 as mentioned.
"newman" > wrote in message
news:XPEaj.17517$c82.8170@trnddc01...
> If I'm not mistaken, you can get IAC valve thru Oreilly/Autozone.
> Probably
> cheaper than dealer-not sure of quality.
> "Allan" > wrote in message
> ...
> My engine is the OHV then because it does have the 4.0L EFI on the top
> of the engine. Thanks for that!
>
> Allan
>
> wrote:
>> Glad you got your Explorer up and running good. i had a little bit of
>> a problem with my IAC not too long ago. funny how such a small part
>> can cause so much trouble huh. also, for future reference, if
>> anyone asks which 4.0L engine you have, take a look at the engine
>> itself. your '99 and my '00 model have either a 4.0L SOHC (single
>> overhead cam) or 4.0L OHV (overhead valve). the SOHC has a plastic
>> cover on top of the engine that says "4.0L SOHC" on it ( lol, duh ),
>> while the OHV does not have a cover at all, and simply says "4.0L EFI"
>> or just "EFI" on top of the engine. also you can check near the back
>> of your owner's manual and it will have pictures that identify each
>> engine as they look under the hood. anyway, hope your Explorer
>> continues performing well for you! Merry Christmas as well!
>>
>> aklmfreak
>> 2000 Ford Explorer Sport
>> 4.0L SOHC
>> Flowmaster Dual Exhaust
>
>

$22?? When I was on my computer I went to Autozone.com online, and they
list Idle Air Control Motor Edelbrock / Idle Air Control Valve And
Gasket for $100.99. This is for a '98SOHC.



Plano Bill wrote:
> You are correct in your statement. I have bought two (2) IAC's from
> Autozone for $22.00 and change. Sure beats the $140.00 as mentioned.
> "newman" > wrote in message
> news:XPEaj.17517$c82.8170@trnddc01...
>
>> If I'm not mistaken, you can get IAC valve thru Oreilly/Autozone.
>> Probably
>> cheaper than dealer-not sure of quality.
>> "Allan" > wrote in message
>> ...
>> My engine is the OHV then because it does have the 4.0L EFI on the top
>> of the engine. Thanks for that!
>>
>> Allan
>>
>> wrote:
>>
>>> Glad you got your Explorer up and running good. i had a little bit of
>>> a problem with my IAC not too long ago. funny how such a small part
>>> can cause so much trouble huh. also, for future reference, if
>>> anyone asks which 4.0L engine you have, take a look at the engine
>>> itself. your '99 and my '00 model have either a 4.0L SOHC (single
>>> overhead cam) or 4.0L OHV (overhead valve). the SOHC has a plastic
>>> cover on top of the engine that says "4.0L SOHC" on it ( lol, duh ),
>>> while the OHV does not have a cover at all, and simply says "4.0L EFI"
>>> or just "EFI" on top of the engine. also you can check near the back
>>> of your owner's manual and it will have pictures that identify each
>>> engine as they look under the hood. anyway, hope your Explorer
>>> continues performing well for you! Merry Christmas as well!
>>>
>>> aklmfreak
>>> 2000 Ford Explorer Sport
>>> 4.0L SOHC
>>> Flowmaster Dual Exhaust
>>
>>
>>
>

I just purchased a IAC valve from Autozone for $50. Please do not mislead
people

"Plano Bill" > wrote in message
news:KLFaj.17537$c82.8393@trnddc01...
> You are correct in your statement. I have bought two (2) IAC's from
> Autozone for $22.00 and change. Sure beats the $140.00 as mentioned.
> "newman" > wrote in message
> news:XPEaj.17517$c82.8170@trnddc01...
>> If I'm not mistaken, you can get IAC valve thru Oreilly/Autozone.
>> Probably
>> cheaper than dealer-not sure of quality.
>> "Allan" > wrote in message
>> ...
>> My engine is the OHV then because it does have the 4.0L EFI on the top
>> of the engine. Thanks for that!
>>
>> Allan
>>
>> wrote:
>>> Glad you got your Explorer up and running good. i had a little bit of
>>> a problem with my IAC not too long ago. funny how such a small part
>>> can cause so much trouble huh. also, for future reference, if
>>> anyone asks which 4.0L engine you have, take a look at the engine
>>> itself. your '99 and my '00 model have either a 4.0L SOHC (single
>>> overhead cam) or 4.0L OHV (overhead valve). the SOHC has a plastic
>>> cover on top of the engine that says "4.0L SOHC" on it ( lol, duh ),
>>> while the OHV does not have a cover at all, and simply says "4.0L EFI"
>>> or just "EFI" on top of the engine. also you can check near the back
>>> of your owner's manual and it will have pictures that identify each
>>> engine as they look under the hood. anyway, hope your Explorer
>>> continues performing well for you! Merry Christmas as well!
>>>
>>> aklmfreak
>>> 2000 Ford Explorer Sport
>>> 4.0L SOHC
>>> Flowmaster Dual Exhaust
>>
>>
>

What do you mean "mislead people"? When I looked up the price on
Autozone, that was the price they gave me. Check for yourself:
(www.autozone.com). Are their diffeent Autozones with their own prices?

dosio wrote:
> I just purchased a IAC valve from Autozone for $50. Please do not mislead
> people
>
> "Plano Bill" > wrote in message
> news:KLFaj.17537$c82.8393@trnddc01...
>
>>You are correct in your statement. I have bought two (2) IAC's from
>>Autozone for $22.00 and change. Sure beats the $140.00 as mentioned.
>>"newman" > wrote in message
>>news:XPEaj.17517$c82.8170@trnddc01...
>>
>>>If I'm not mistaken, you can get IAC valve thru Oreilly/Autozone.
>>>Probably
>>>cheaper than dealer-not sure of quality.
>>>"Allan" > wrote in message
...
>>>My engine is the OHV then because it does have the 4.0L EFI on the top
>>>of the engine. Thanks for that!
>>>
>>>Allan
>>>
wrote:
>>>
>>>>Glad you got your Explorer up and running good. i had a little bit of
>>>>a problem with my IAC not too long ago. funny how such a small part
>>>>can cause so much trouble huh. also, for future reference, if
>>>>anyone asks which 4.0L engine you have, take a look at the engine
>>>>itself. your '99 and my '00 model have either a 4.0L SOHC (single
>>>>overhead cam) or 4.0L OHV (overhead valve). the SOHC has a plastic
>>>>cover on top of the engine that says "4.0L SOHC" on it ( lol, duh ),
>>>>while the OHV does not have a cover at all, and simply says "4.0L EFI"
>>>>or just "EFI" on top of the engine. also you can check near the back
>>>>of your owner's manual and it will have pictures that identify each
>>>>engine as they look under the hood. anyway, hope your Explorer
>>>>continues performing well for you! Merry Christmas as well!
>>>>
>>>>aklmfreak
>>>>2000 Ford Explorer Sport
>>>>4.0L SOHC
>>>>Flowmaster Dual Exhaust
>>>
>>>
>
>