Prev: '97 Camry timing belt
Next: 1993 Camry Doesn't Shift Until It is Warm
From: mrdarrett on 18 Mar 2007 04:06
So, following the directions in my Haynes for my '96 Camry, I checked
the resistance and voltage of my ECT temperature sensor (the one just
upstream of the upper radiator hose). On a warm car, the resistance
was about 100 ohms. Seemed a bit low.

Voltage was 10 volts. (Haynes said it should be 5V.)

I looked into this because the car stalled again, one week after
changing the tranny fluid. (I was pretty sure that it was a stuck
torque converter lock, too...)

So, what do I do now...? 10V seems kind of high, ya?

By the way, the Toyota dealer had no idea what an ECT temperature
sensor was. Anyone have a part number for this one for my car ('96, 4-
banger)?

Thanks

Michael

From: jan siepelstad on 18 Mar 2007 07:54

<mrdarrett(a)gmail.com> wrote in message
news:1174205218.847800.78490(a)l75g2000hse.googlegroups.com...
> So, following the directions in my Haynes for my '96 Camry, I checked
> the resistance and voltage of my ECT temperature sensor (the one just
> upstream of the upper radiator hose). On a warm car, the resistance
> was about 100 ohms. Seemed a bit low.
>
> Voltage was 10 volts. (Haynes said it should be 5V.)
>
> I looked into this because the car stalled again, one week after
> changing the tranny fluid. (I was pretty sure that it was a stuck
> torque converter lock, too...)
>
> So, what do I do now...? 10V seems kind of high, ya?
>
> By the way, the Toyota dealer had no idea what an ECT temperature
> sensor was. Anyone have a part number for this one for my car ('96, 4-
> banger)?
>
> Thanks
>
> Michael
>
Strange.
According to the maintenance manual I have (a chapter of 72 pages just about
the cooling system). The ECT is a switch, mounted in the bottom of the
radiator and is just switching on and off the cooling fan.

Jan.


From: mrdarrett on 20 Mar 2007 12:09
On Mar 18, 4:54 am, "jan siepelstad" <j...(a)microsoft.com> wrote:
> <mrdarr...(a)gmail.com> wrote in message
>
> news:1174205218.847800.78490(a)l75g2000hse.googlegroups.com...
>
>
>
> > So, following the directions in my Haynes for my '96 Camry, I checked
> > the resistance and voltage of my ECT temperature sensor (the one just
> > upstream of the upper radiator hose). On a warm car, the resistance
> > was about 100 ohms. Seemed a bit low.
>
> > Voltage was 10 volts. (Haynes said it should be 5V.)
>
> > I looked into this because the car stalled again, one week after
> > changing the tranny fluid. (I was pretty sure that it was a stuck
> > torque converter lock, too...)
>
> > So, what do I do now...? 10V seems kind of high, ya?
>
> > By the way, the Toyota dealer had no idea what an ECT temperature
> > sensor was. Anyone have a part number for this one for my car ('96, 4-
> > banger)?
>
> > Thanks
>
> > Michael
>
> Strange.
> According to the maintenance manual I have (a chapter of 72 pages just about
> the cooling system). The ECT is a switch, mounted in the bottom of the
> radiator and is just switching on and off the cooling fan.
>
> Jan.- Hide quoted text -
>
> - Show quoted text -


I saw that one (bottom of the radiator) too. The Toyota dealership
said that's the only ECT they could find - and it's $110 at the
dealership for that part.

Oh well...

Michael

From: johngdole on 22 Mar 2007 19:50
The ECT you mentioned is a variable resistor, not the ECT switch
(Toyota could better differentiate them like the latter a "fan switch"
everybody else calls.)

The variable resistor (near 0 hot, near infinity when cold). But it's
on the water outlet like you described. It doesn't need voltage to
operate.

100ohms is about the low end of the permitted range at around 210deg.
Why do you think it's low or bad?

rockauto.com has one for as low as $23.99 (verify your application).
The "fan switch" 36549 is about $50.


STANDARD MOTOR PRODUCTS Part # TX40T {TRU-TECH}
$23.99 $0.00 $23.99

STANDARD MOTOR PRODUCTS Part # TX40 More Info
$27.79 $0.00 $27.79

AIRTEX Part # 5S1517 More Info
$28.79 $0.00 $28.79

BECK/ARNLEY Part # 1580421 More Info
$31.79 $0.00 $31.79

ACDELCO Part # D583 More Info {#19022018} SENSOR,ENG COOL T/GA
$37.79 $0.00 $37.79

FOUR SEASONS Part # 36424 More Info For AC
$54.79 $0.00 $54.79


mrdarrett(a)gmail.com wrote:
> So, following the directions in my Haynes for my '96 Camry, I checked
> the resistance and voltage of my ECT temperature sensor (the one just
> upstream of the upper radiator hose). On a warm car, the resistance
> was about 100 ohms. Seemed a bit low.
>
> Voltage was 10 volts. (Haynes said it should be 5V.)
>
> I looked into this because the car stalled again, one week after
> changing the tranny fluid. (I was pretty sure that it was a stuck
> torque converter lock, too...)
>
> So, what do I do now...? 10V seems kind of high, ya?
>
> By the way, the Toyota dealer had no idea what an ECT temperature
> sensor was. Anyone have a part number for this one for my car ('96, 4-
> banger)?
>
> Thanks
>
> Michael

From: mrdarrett on 26 Mar 2007 11:46
On Mar 22, 4:50 pm, johngd...(a)hotmail.com wrote:
> The ECT you mentioned is a variable resistor, not the ECT switch
> (Toyota could better differentiate them like the latter a "fan switch"
> everybody else calls.)


Yep, I'm playing with the one on the water outlet. Is its operation
critical? Does it provide information to the onboard computer, which
controls other stuff?

It sure doesn't help that Toyota calls two different parts ECT. (This
ECT? Oh. THAT ECT!)


>
> The variable resistor (near 0 hot, near infinity when cold). But it's
> on the water outlet like you described. It doesn't need voltage to
> operate.
>
> 100ohms is about the low end of the permitted range at around 210deg.
> Why do you think it's low or bad?


I'm trying to track down my stalling problem on my '96 4-banger
(stalls only when warm, when slowing to a stoplight). So far tried
cleaning the IAC, changed spark plugs (which were clean, by the way -
no carbon buildup, as I was suspecting), replaced the leaking
distributor O-ring (but the electrical contacts inside the distributor
were squeaky clean), even changing tranny fluid in case of a stuck
torque converter lock. Still stalling.

Next suspects: sensors, EGR, possibly onboard computer...?

I don't think it's the coils, since they work just fine on startup,
and on the freeway. Changed fuel filter ~ 5 years ago.

10V instead of 5V really does seem kind of weird.

Thanks for the prices...

By the way - I changed the single-spark Pt. Bosch plugs my dad put in
the '96 to dual Pt. Bosch plugs. What a difference in power! Even
when the car stalled on the usual hill in Vallejo, the engine didn't
quite completely die - just hovered between, oh, 200 and 600 rpm.
Must be the new plugs...? ;-)

Michael



> rockauto.com has one for as low as $23.99 (verify your application).
> The "fan switch" 36549 is about $50.
>
> STANDARD MOTOR PRODUCTS Part # TX40T {TRU-TECH}
> $23.99 $0.00 $23.99
>
> STANDARD MOTOR PRODUCTS Part # TX40 More Info
> $27.79 $0.00 $27.79
>
> AIRTEX Part # 5S1517 More Info
> $28.79 $0.00 $28.79
>
> BECK/ARNLEY Part # 1580421 More Info
> $31.79 $0.00 $31.79
>
> ACDELCO Part # D583 More Info {#19022018} SENSOR,ENG COOL T/GA
> $37.79 $0.00 $37.79
>
> FOUR SEASONS Part # 36424 More Info For AC
> $54.79 $0.00 $54.79
>
>
>
> mrdarr...(a)gmail.com wrote:
> > So, following the directions in my Haynes for my '96 Camry, I checked
> > the resistance and voltage of my ECT temperature sensor (the one just
> > upstream of the upper radiator hose). On a warm car, the resistance
> > was about 100 ohms. Seemed a bit low.
>
> > Voltage was 10 volts. (Haynes said it should be 5V.)
>
> > I looked into this because the car stalled again, one week after
> > changing the tranny fluid. (I was pretty sure that it was a stuck
> > torque converter lock, too...)
>
> > So, what do I do now...? 10V seems kind of high, ya?
>
> > By the way, the Toyota dealer had no idea what an ECT temperature
> > sensor was. Anyone have a part number for this one for my car ('96, 4-
> > banger)?
>
> > Thanks
>
> > Michael- Hide quoted text -
>
> - Show quoted text -


 |  Next  |  Last
Pages: 1 2 3
Prev: '97 Camry timing belt
Next: 1993 Camry Doesn't Shift Until It is Warm