Throttle bodies interchangeable?

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Old 27 Feb 2010, 08:11 pm   #1 (permalink)
Michael
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Default Throttle bodies interchangeable?

My wife's '99 Camry (~98k miles) shudders a bit when starting the
engine while it's warm.

I'm considering swapping the throttle body (and the IAC valve attached
to it) from my '96 Camry (175k miles) to her '99, and putting hers in
my car.

Is this a bad idea? Will they even fit? Is the design significantly
different?
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Old 27 Feb 2010, 08:19 pm   #2 (permalink)
Jeff Strickland
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Default Re: Throttle bodies interchangeable?


"Michael" <mrdarrett@gmail.com> wrote in message
news:568f4623-dca2-4d14-a7b5-9649d5447613@z1g2000prc.googlegroups.com...
> My wife's '99 Camry (~98k miles) shudders a bit when starting the
> engine while it's warm.
>
> I'm considering swapping the throttle body (and the IAC valve attached
> to it) from my '96 Camry (175k miles) to her '99, and putting hers in
> my car.
>
> Is this a bad idea? Will they even fit? Is the design significantly
> different?


This is one of thoes, "if you gotta ask" questions.

When it stutters enough to throw a Check Engine light, then change
something.







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Old 27 Feb 2010, 08:20 pm   #3 (permalink)
Jeff Strickland
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Default Re: Throttle bodies interchangeable?


"Jeff Strickland" <crwlrjeff@yahoo.com> wrote in message
news:hmcjrn$tj5$1@news.eternal-september.org...
>
> "Michael" <mrdarrett@gmail.com> wrote in message
> news:568f4623-dca2-4d14-a7b5-9649d5447613@z1g2000prc.googlegroups.com...
>> My wife's '99 Camry (~98k miles) shudders a bit when starting the
>> engine while it's warm.
>>
>> I'm considering swapping the throttle body (and the IAC valve attached
>> to it) from my '96 Camry (175k miles) to her '99, and putting hers in
>> my car.
>>
>> Is this a bad idea? Will they even fit? Is the design significantly
>> different?

>
> This is one of thoes, "if you gotta ask" questions.
>


Techincally, it's one of THOSE ...


> When it stutters enough to throw a Check Engine light, then change
> something.
>
>
>
>
>
>
>



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Old 27 Feb 2010, 08:43 pm   #4 (permalink)
Michael
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Default Re: Throttle bodies interchangeable?

On Feb 27, 6:19*pm, "Jeff Strickland" <crwlrj...@yahoo.com> wrote:
> "Michael" <mrdarr...@gmail.com> wrote in message
>
> news:568f4623-dca2-4d14-a7b5-9649d5447613@z1g2000prc.googlegroups.com...
>
> > My wife's '99 Camry (~98k miles) shudders a bit when starting the
> > engine while it's warm.

>
> > I'm considering swapping the throttle body (and the IAC valve attached
> > to it) from my '96 Camry (175k miles) to her '99, and putting hers in
> > my car.

>
> > Is this a bad idea? *Will they even fit? *Is the design significantly
> > different?

>
> This is one of thoes, "if you gotta ask" questions.
>
> When it stutters enough to throw a Check Engine light, then change
> something.



No CEL thrown. I've heard this stuttering is due to a bad IAC valve.
I cleaned it, and the problem persists.
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Old 27 Feb 2010, 08:52 pm   #5 (permalink)
Jeff Strickland
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Default Re: Throttle bodies interchangeable?


"Michael" <mrdarrett@gmail.com> wrote in message
news:de8b8680-cc4d-4b5e-b45a-646ae300765c@b36g2000pri.googlegroups.com...
On Feb 27, 6:19 pm, "Jeff Strickland" <crwlrj...@yahoo.com> wrote:
> "Michael" <mrdarr...@gmail.com> wrote in message
>
> news:568f4623-dca2-4d14-a7b5-9649d5447613@z1g2000prc.googlegroups.com...
>
> > My wife's '99 Camry (~98k miles) shudders a bit when starting the
> > engine while it's warm.

>
> > I'm considering swapping the throttle body (and the IAC valve attached
> > to it) from my '96 Camry (175k miles) to her '99, and putting hers in
> > my car.

>
> > Is this a bad idea? Will they even fit? Is the design significantly
> > different?

>
> This is one of thoes, "if you gotta ask" questions.
>
> When it stutters enough to throw a Check Engine light, then change
> something.



No CEL thrown. I've heard this stuttering is due to a bad IAC valve.
I cleaned it, and the problem persists.

<JS>
So? Wait until it throws a code, else you are chasing your tail. If you
chcked and cleaned it, then the problem isn't what you want it to be. Wait,
Grasshopper. Be patient.


</JS>





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Old 27 Feb 2010, 11:25 pm   #6 (permalink)
Uncle_vito
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Default Re: Throttle bodies interchangeable?

Clean the entire throttle body with carb cleaner. Open the throttle plate
and get rid of all the carbon. Keep the cleaner out of electronic sensors,
plastic parts, and connectors. You might have to loosen the throttle body
to get behind the throttle plate. Sometimes the throttle plate is dirty so
that it leaks so much air, the IAC value is not really in control, so clean
everything well.

Vito


"Michael" <mrdarrett@gmail.com> wrote in message
news:de8b8680-cc4d-4b5e-b45a-646ae300765c@b36g2000pri.googlegroups.com...
On Feb 27, 6:19 pm, "Jeff Strickland" <crwlrj...@yahoo.com> wrote:
> "Michael" <mrdarr...@gmail.com> wrote in message
>
> news:568f4623-dca2-4d14-a7b5-9649d5447613@z1g2000prc.googlegroups.com...
>
> > My wife's '99 Camry (~98k miles) shudders a bit when starting the
> > engine while it's warm.

>
> > I'm considering swapping the throttle body (and the IAC valve attached
> > to it) from my '96 Camry (175k miles) to her '99, and putting hers in
> > my car.

>
> > Is this a bad idea? Will they even fit? Is the design significantly
> > different?

>
> This is one of thoes, "if you gotta ask" questions.
>
> When it stutters enough to throw a Check Engine light, then change
> something.



No CEL thrown. I've heard this stuttering is due to a bad IAC valve.
I cleaned it, and the problem persists.


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Old 27 Feb 2010, 11:46 pm   #7 (permalink)
Ray O
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Default Re: Throttle bodies interchangeable?


"Michael" <mrdarrett@gmail.com> wrote in message
news:568f4623-dca2-4d14-a7b5-9649d5447613@z1g2000prc.googlegroups.com...
> My wife's '99 Camry (~98k miles) shudders a bit when starting the
> engine while it's warm.
>
> I'm considering swapping the throttle body (and the IAC valve attached
> to it) from my '96 Camry (175k miles) to her '99, and putting hers in
> my car.
>
> Is this a bad idea? Will they even fit? Is the design significantly
> different?


The 1996 V6 was the 3VZ-FE engine, while the 1999 V6 was the 1MZ-FE so with
different engine series, the throttle body almost definitely will not fit.

The 1996 and 1999 I4 engines were both 5S-FE engine but the 1999 produced
slightly more horsepower and the body style was different so they are not
likely to be interchangeable.

Some additional information would be helpful in diagnosing the condition,
and fixing the condition is probably easier than swapping the throttle
bodies.

What do you mean when you say that the engine "shudders a bit" when starting
the engine while it is warm?

Is it difficult to start when warm?

Does it idle roughly when warm but not when cold?

Does the condition persist the whole time the engine is warmed up or only
after it is first started?

When you cleaned the throttle body, did you check to see if the IAC valve
moved freely when you were done? Was the inside of the throttle body oily
or did it have a varnish-like coating?

Did you clean the edges and inside of the throttle plate?

What is the condition of the engine air filter?

Check the black plastic tube between the air filter housing and throttle
body for holes, cracks, gaps, etc.
--

Ray O
(correct punctuation to reply)


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Old 28 Feb 2010, 12:24 am   #8 (permalink)
Michael
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Default Re: Throttle bodies interchangeable?

On Feb 27, 9:46*pm, "Ray O" <rokig...@NOSPAMtristarassociates.com>
wrote:
> "Michael" <mrdarr...@gmail.com> wrote in message
>
> news:568f4623-dca2-4d14-a7b5-9649d5447613@z1g2000prc.googlegroups.com...
>
> > My wife's '99 Camry (~98k miles) shudders a bit when starting the
> > engine while it's warm.

>
> > I'm considering swapping the throttle body (and the IAC valve attached
> > to it) from my '96 Camry (175k miles) to her '99, and putting hers in
> > my car.

>
> > Is this a bad idea? *Will they even fit? *Is the design significantly
> > different?

>
> The 1996 V6 was the 3VZ-FE engine, while the 1999 V6 was the 1MZ-FE *sowith
> different engine series, the throttle body almost definitely will not fit..
>
> The 1996 and 1999 I4 engines were both 5S-FE engine but the 1999 produced
> slightly more horsepower *and the body style was different so they are not
> likely to be interchangeable.
>
> Some additional information would be helpful in diagnosing the condition,
> and fixing the condition is probably easier than swapping the throttle
> bodies.
>
> What do you mean when you say that the engine "shudders a bit" when starting
> the engine while it is warm?
>
> Is it difficult to start when warm?
>
> Does it idle roughly when warm but not when cold?



Yes that's exactly it. Engine gets about 100 RPM when starting while
warm (never when cold). Sometimes stepping on the gas cures it; more
often lately it stalls and my wife has to re-start the car. Then it's
fine.

I cleaned by spraying throttle body cleaner and then with motorcycle
chain teflon into the little rectangle in front of the throttle plate
after removing the air intake hose.

This isn't an IAC problem? I thought the '99 was famous for faulty
IACs, and this is one of the symptoms.

I'll clean the throttle body/plate when I get a spare moment

Michael
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Old 28 Feb 2010, 06:24 am   #9 (permalink)
Clive
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Default Re: Throttle bodies interchangeable?

In message
<568f4623-dca2-4d14-a7b5-9649d5447613@z1g2000prc.googlegroups.com>,
Michael <mrdarrett@gmail.com> writes
>My wife's '99 Camry (~98k miles) shudders a bit when starting the
>engine while it's warm.
>
>I'm considering swapping the throttle body (and the IAC valve attached
>to it) from my '96 Camry (175k miles) to her '99, and putting hers in
>my car.

If it's a carburettor car then it's possible for the choke to be
slightly closed on starting a warm engine and this could cause
mis-firing.
--
Clive

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Old 28 Feb 2010, 09:25 am   #10 (permalink)
larry moe 'n curly
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Default Re: Throttle bodies interchangeable?



Clive wrote:

> If it's a carburettor car then it's possible for the choke to be
> slightly closed on starting a warm engine and this could cause
> mis-firing.


Carburetted Camry? Not even back in 1984, unless you're talking about
one of the numerous Camry street rods.
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