[AT] 2010 toyota camry

[charliehill]

I heard that Ken.  I wasn't suggesting you tear into it.  Just musing about 
what might be going on.  I have no real techincal or practical knowledge of 
these systems other than chasing a couple of wierd problems over the last 20 
years.  I had a driveability problem in my 89 GMC that I chased for a couple 
of years before it became regular enough and severe enough to find.  It 
started out being just an occasional hickup, pop, hesitation and only when 
the cruise control was engaged.  Over time it got progressively worse until 
it happend all the time, cruise control or not,  and eventually the truck 
became almost undriveable.  When I finally found the problem it was (as 
Farmer would have probably told me) a ground.   There is a ground wire from 
the cruise control module that grounds to one of the studs on the thermostat 
housing.  Because of the difficulty in tightening two nuts agains a couple 
of two short ground wires on a stud the stud had gotten slightly loose in 
the intake.  This allowed antifreeze to seep into the threads but not leak 
to the outside.  That ground was supposed to read within a certain 
resistance range and it was out of range.  When we finally found it, after 
testing and replacing hundreds of dollars of parts over 2 years or more, 
1/4 turn with a 9/16 wrench fixed it.  The silver lining of that deal was 
that I got very familiar with throttle position sensors,  MAP sensors and 
the like.

Charlie
----- Original Message ----- 
From: "Ken Knierim" <ken.knierim at gmail.com>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Monday, December 07, 2009 11:45 AM
Subject: Re: [AT] 2010 toyota camry


> On Mon, Dec 7, 2009 at 9:06 AM, charliehill 
> <charliehill at embarqmail.com>wrote:
>
>> Hmmm,  I wonder if there was an issue with the throttle position sensor
>> that
>> could be fixed by replacing it with a later revision unit?
>>
>> Charlie
>>
>
> This one LOOKS like software on the main computer. If not, the new parts 
> are
> likely to be expensive anyway. Why break something that's working? (I 
> know,
> engineers aren't supposed to say that). It annoys me, but not her. 
> Breakin'
> Momma's Car is not on my to-do list. I have plenty of projects I can't
> afford already. :)
>
> Ken in AZ
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