coolant temperature sensor
in [Toyota]
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From: Michael on 15 Mar 2010 18:27 On Mar 14, 11:38 pm, Michael <mrdarr...(a)gmail.com> wrote: > On Mar 14, 9:07 pm, "Ray O" <rokig...(a)NOSPAMtristarassociates.com> > wrote: > > > > > "jim beam" <m...(a)privacy.net> wrote in message > > >news:eMOdnVn9iOvKLgDWnZ2dnUVZ_vKdnZ2d(a)speakeasy.net... > > > > On 03/14/2010 06:12 PM, Ray O wrote: > > >> "Michael"<mrdarr...(a)gmail.com> wrote in message > > >>news:a23e88d4-7fd8-40b8-9970-96ed27544d62(a)o16g2000prh.googlegroups.com... > > >> On Mar 13, 9:05 pm, "Ray O"<rokig...(a)NOSPAMtristarassociates.com> > > >> wrote: > > >>> "Michael"<mrdarr...(a)gmail.com> wrote in message > > > >>>news:19dead76-e519-4c71-8b0c-64b100d85527(a)e19g2000prn.googlegroups.com... > > > >>>> Is it customary to wrap some teflon tape around the threads of the ECT > > >>>> sensor (~96, 99 Camry)? Or will that interfere with the grounding of > > >>>> the sensor? > > > >>>> Thanks, > > > >>>> Michael > > > >>> You do not need tape on the engine coolant temperature sensor. > > >>> -- > > > >>> Ray O > > >>> (correct punctuation to reply) > > > >> Thanks! That's what I thought, but just wanted to make sure, esp. > > >> since I read somewhere about someone using Teflon tape on it... > > > >> ************ > > >> You're welcome. As a rule of thumb, threaded fasteners and connections > > >> on > > >> Toyotas do not use tape sealers. If anything, it will use something like > > >> Loctite. > > > > depends if it's tapered thread or not. if it is, then tape is fine.. > > > > -- > > > nomina rutrum rutrum > > > The engine coolant temp sensor uses a gasket, which should be replaced when > > removing the sensor. > > -- > > > Ray O > > (correct punctuation to reply) > > Funny thing is, I think I'm missing my gasket. Wonder where I can > find another... Tried a transplant of ECT sensors ('96, '99 Camries) > to try and isolate my warm startup stall problem on the '99. Had a > hunch since it's temperature related it might be the ECT. Nope, > that's not it... just found out today. > > Michael New gasket is $2 at the dealership... special order... arriving tomorrow. I guess I lost it last time I changed the ECT sensor 1~2 yrs ago.
From: Ray O on 15 Mar 2010 18:45 "Michael" <mrdarrett(a)gmail.com> wrote in message news:ac136c18-2961-4fff-8ddd-25805b702b2b(a)l24g2000prh.googlegroups.com... On Mar 14, 11:38 pm, Michael <mrdarr...(a)gmail.com> wrote: > On Mar 14, 9:07 pm, "Ray O" <rokig...(a)NOSPAMtristarassociates.com> > wrote: > > > > > "jim beam" <m...(a)privacy.net> wrote in message > > >news:eMOdnVn9iOvKLgDWnZ2dnUVZ_vKdnZ2d(a)speakeasy.net... > > > > On 03/14/2010 06:12 PM, Ray O wrote: > > >> "Michael"<mrdarr...(a)gmail.com> wrote in message > > >>news:a23e88d4-7fd8-40b8-9970-96ed27544d62(a)o16g2000prh.googlegroups.com... > > >> On Mar 13, 9:05 pm, "Ray O"<rokig...(a)NOSPAMtristarassociates.com> > > >> wrote: > > >>> "Michael"<mrdarr...(a)gmail.com> wrote in message > > > >>>news:19dead76-e519-4c71-8b0c-64b100d85527(a)e19g2000prn.googlegroups.com... > > > >>>> Is it customary to wrap some teflon tape around the threads of the > > >>>> ECT > > >>>> sensor (~96, 99 Camry)? Or will that interfere with the grounding > > >>>> of > > >>>> the sensor? > > > >>>> Thanks, > > > >>>> Michael > > > >>> You do not need tape on the engine coolant temperature sensor. > > >>> -- > > > >>> Ray O > > >>> (correct punctuation to reply) > > > >> Thanks! That's what I thought, but just wanted to make sure, esp. > > >> since I read somewhere about someone using Teflon tape on it... > > > >> ************ > > >> You're welcome. As a rule of thumb, threaded fasteners and > > >> connections > > >> on > > >> Toyotas do not use tape sealers. If anything, it will use something > > >> like > > >> Loctite. > > > > depends if it's tapered thread or not. if it is, then tape is fine. > > > > -- > > > nomina rutrum rutrum > > > The engine coolant temp sensor uses a gasket, which should be replaced > > when > > removing the sensor. > > -- > > > Ray O > > (correct punctuation to reply) > > Funny thing is, I think I'm missing my gasket. Wonder where I can > find another... Tried a transplant of ECT sensors ('96, '99 Camries) > to try and isolate my warm startup stall problem on the '99. Had a > hunch since it's temperature related it might be the ECT. Nope, > that's not it... just found out today. > > Michael New gasket is $2 at the dealership... special order... arriving tomorrow. I guess I lost it last time I changed the ECT sensor 1~2 yrs ago. ********* A bad engine coolant temperature sensor will not cause a warm startup stall condition. The most likely culprits if there is no check engine light are fouled or bad spark plugs or coil; sticking idle air control valve; dirty MAF or MAP sensor; or vacuum leak. An out-of adjustment throttle position sensor could also cause the condition if it has been disturbed from the original factory setting. -- Ray O (correct punctuation to reply)
From: Michael on 15 Mar 2010 19:18 On Mar 15, 3:45 pm, "Ray O" <rokig...(a)NOSPAMtristarassociates.com> wrote: > "Michael" <mrdarr...(a)gmail.com> wrote in message > > news:ac136c18-2961-4fff-8ddd-25805b702b2b(a)l24g2000prh.googlegroups.com... > On Mar 14, 11:38 pm, Michael <mrdarr...(a)gmail.com> wrote: > > > > > On Mar 14, 9:07 pm, "Ray O" <rokig...(a)NOSPAMtristarassociates.com> > > wrote: > > > > "jim beam" <m...(a)privacy.net> wrote in message > > > >news:eMOdnVn9iOvKLgDWnZ2dnUVZ_vKdnZ2d(a)speakeasy.net... > > > > > On 03/14/2010 06:12 PM, Ray O wrote: > > > >> "Michael"<mrdarr...(a)gmail.com> wrote in message > > > >>news:a23e88d4-7fd8-40b8-9970-96ed27544d62(a)o16g2000prh.googlegroups.com... > > > >> On Mar 13, 9:05 pm, "Ray O"<rokig...(a)NOSPAMtristarassociates.com> > > > >> wrote: > > > >>> "Michael"<mrdarr...(a)gmail.com> wrote in message > > > > >>>news:19dead76-e519-4c71-8b0c-64b100d85527(a)e19g2000prn.googlegroups..com... > > > > >>>> Is it customary to wrap some teflon tape around the threads of the > > > >>>> ECT > > > >>>> sensor (~96, 99 Camry)? Or will that interfere with the grounding > > > >>>> of > > > >>>> the sensor? > > > > >>>> Thanks, > > > > >>>> Michael > > > > >>> You do not need tape on the engine coolant temperature sensor. > > > >>> -- > > > > >>> Ray O > > > >>> (correct punctuation to reply) > > > > >> Thanks! That's what I thought, but just wanted to make sure, esp. > > > >> since I read somewhere about someone using Teflon tape on it... > > > > >> ************ > > > >> You're welcome. As a rule of thumb, threaded fasteners and > > > >> connections > > > >> on > > > >> Toyotas do not use tape sealers. If anything, it will use something > > > >> like > > > >> Loctite. > > > > > depends if it's tapered thread or not. if it is, then tape is fine. > > > > > -- > > > > nomina rutrum rutrum > > > > The engine coolant temp sensor uses a gasket, which should be replaced > > > when > > > removing the sensor. > > > -- > > > > Ray O > > > (correct punctuation to reply) > > > Funny thing is, I think I'm missing my gasket. Wonder where I can > > find another... Tried a transplant of ECT sensors ('96, '99 Camries) > > to try and isolate my warm startup stall problem on the '99. Had a > > hunch since it's temperature related it might be the ECT. Nope, > > that's not it... just found out today. > > > Michael > > New gasket is $2 at the dealership... special order... arriving > tomorrow. I guess I lost it last time I changed the ECT sensor 1~2 > yrs ago. > > ********* > > A bad engine coolant temperature sensor will not cause a warm startup stall > condition. > > The most likely culprits if there is no check engine light are fouled or bad > spark plugs or coil; sticking idle air control valve; dirty MAF or MAP > sensor; or vacuum leak. An out-of adjustment throttle position sensor could > also cause the condition if it has been disturbed from the original factory > setting. > -- > > Ray O > (correct punctuation to reply) Changed the spark plugs to Denso. Cleaned IAC valve by squirting throttle cleaner in the little hole just before the throttle plate. Haven't had time yet to do throttle body cleaning, checking vacuum leaks or cleaning MAP sensor. Idle speed on the '99 is around 2000 rpm when cold. Seems high. Is this normal? Michael
From: Michael on 15 Mar 2010 19:18 On Mar 15, 3:45 pm, "Ray O" <rokig...(a)NOSPAMtristarassociates.com> wrote: > "Michael" <mrdarr...(a)gmail.com> wrote in message > > news:ac136c18-2961-4fff-8ddd-25805b702b2b(a)l24g2000prh.googlegroups.com... > On Mar 14, 11:38 pm, Michael <mrdarr...(a)gmail.com> wrote: > > > > > On Mar 14, 9:07 pm, "Ray O" <rokig...(a)NOSPAMtristarassociates.com> > > wrote: > > > > "jim beam" <m...(a)privacy.net> wrote in message > > > >news:eMOdnVn9iOvKLgDWnZ2dnUVZ_vKdnZ2d(a)speakeasy.net... > > > > > On 03/14/2010 06:12 PM, Ray O wrote: > > > >> "Michael"<mrdarr...(a)gmail.com> wrote in message > > > >>news:a23e88d4-7fd8-40b8-9970-96ed27544d62(a)o16g2000prh.googlegroups.com... > > > >> On Mar 13, 9:05 pm, "Ray O"<rokig...(a)NOSPAMtristarassociates.com> > > > >> wrote: > > > >>> "Michael"<mrdarr...(a)gmail.com> wrote in message > > > > >>>news:19dead76-e519-4c71-8b0c-64b100d85527(a)e19g2000prn.googlegroups..com... > > > > >>>> Is it customary to wrap some teflon tape around the threads of the > > > >>>> ECT > > > >>>> sensor (~96, 99 Camry)? Or will that interfere with the grounding > > > >>>> of > > > >>>> the sensor? > > > > >>>> Thanks, > > > > >>>> Michael > > > > >>> You do not need tape on the engine coolant temperature sensor. > > > >>> -- > > > > >>> Ray O > > > >>> (correct punctuation to reply) > > > > >> Thanks! That's what I thought, but just wanted to make sure, esp. > > > >> since I read somewhere about someone using Teflon tape on it... > > > > >> ************ > > > >> You're welcome. As a rule of thumb, threaded fasteners and > > > >> connections > > > >> on > > > >> Toyotas do not use tape sealers. If anything, it will use something > > > >> like > > > >> Loctite. > > > > > depends if it's tapered thread or not. if it is, then tape is fine. > > > > > -- > > > > nomina rutrum rutrum > > > > The engine coolant temp sensor uses a gasket, which should be replaced > > > when > > > removing the sensor. > > > -- > > > > Ray O > > > (correct punctuation to reply) > > > Funny thing is, I think I'm missing my gasket. Wonder where I can > > find another... Tried a transplant of ECT sensors ('96, '99 Camries) > > to try and isolate my warm startup stall problem on the '99. Had a > > hunch since it's temperature related it might be the ECT. Nope, > > that's not it... just found out today. > > > Michael > > New gasket is $2 at the dealership... special order... arriving > tomorrow. I guess I lost it last time I changed the ECT sensor 1~2 > yrs ago. > > ********* > > A bad engine coolant temperature sensor will not cause a warm startup stall > condition. > > The most likely culprits if there is no check engine light are fouled or bad > spark plugs or coil; sticking idle air control valve; dirty MAF or MAP > sensor; or vacuum leak. An out-of adjustment throttle position sensor could > also cause the condition if it has been disturbed from the original factory > setting. > -- > > Ray O > (correct punctuation to reply) Forgot to mention - this is the car with the waste spark / square coil packs. Still possible for them to be bad? Michael
From: Ray O on 16 Mar 2010 00:17
"Michael" <mrdarrett(a)gmail.com> wrote in message news:242bf8e6-f6c6-4609-970d-45afb3ca72d1(a)x1g2000prb.googlegroups.com... On Mar 15, 3:45 pm, "Ray O" <rokig...(a)NOSPAMtristarassociates.com> wrote: > "Michael" <mrdarr...(a)gmail.com> wrote in message > > news:ac136c18-2961-4fff-8ddd-25805b702b2b(a)l24g2000prh.googlegroups.com... > On Mar 14, 11:38 pm, Michael <mrdarr...(a)gmail.com> wrote: > > > > > On Mar 14, 9:07 pm, "Ray O" <rokig...(a)NOSPAMtristarassociates.com> > > wrote: > > > > "jim beam" <m...(a)privacy.net> wrote in message > > > >news:eMOdnVn9iOvKLgDWnZ2dnUVZ_vKdnZ2d(a)speakeasy.net... > > > > > On 03/14/2010 06:12 PM, Ray O wrote: > > > >> "Michael"<mrdarr...(a)gmail.com> wrote in message > > > >>news:a23e88d4-7fd8-40b8-9970-96ed27544d62(a)o16g2000prh.googlegroups.com... > > > >> On Mar 13, 9:05 pm, "Ray O"<rokig...(a)NOSPAMtristarassociates.com> > > > >> wrote: > > > >>> "Michael"<mrdarr...(a)gmail.com> wrote in message > > > > >>>news:19dead76-e519-4c71-8b0c-64b100d85527(a)e19g2000prn.googlegroups.com... > > > > >>>> Is it customary to wrap some teflon tape around the threads of > > > >>>> the > > > >>>> ECT > > > >>>> sensor (~96, 99 Camry)? Or will that interfere with the grounding > > > >>>> of > > > >>>> the sensor? > > > > >>>> Thanks, > > > > >>>> Michael > > > > >>> You do not need tape on the engine coolant temperature sensor. > > > >>> -- > > > > >>> Ray O > > > >>> (correct punctuation to reply) > > > > >> Thanks! That's what I thought, but just wanted to make sure, esp. > > > >> since I read somewhere about someone using Teflon tape on it... > > > > >> ************ > > > >> You're welcome. As a rule of thumb, threaded fasteners and > > > >> connections > > > >> on > > > >> Toyotas do not use tape sealers. If anything, it will use something > > > >> like > > > >> Loctite. > > > > > depends if it's tapered thread or not. if it is, then tape is fine. > > > > > -- > > > > nomina rutrum rutrum > > > > The engine coolant temp sensor uses a gasket, which should be replaced > > > when > > > removing the sensor. > > > -- > > > > Ray O > > > (correct punctuation to reply) > > > Funny thing is, I think I'm missing my gasket. Wonder where I can > > find another... Tried a transplant of ECT sensors ('96, '99 Camries) > > to try and isolate my warm startup stall problem on the '99. Had a > > hunch since it's temperature related it might be the ECT. Nope, > > that's not it... just found out today. > > > Michael > > New gasket is $2 at the dealership... special order... arriving > tomorrow. I guess I lost it last time I changed the ECT sensor 1~2 > yrs ago. > > ********* > > A bad engine coolant temperature sensor will not cause a warm startup > stall > condition. > > The most likely culprits if there is no check engine light are fouled or > bad > spark plugs or coil; sticking idle air control valve; dirty MAF or MAP > sensor; or vacuum leak. An out-of adjustment throttle position sensor > could > also cause the condition if it has been disturbed from the original > factory > setting. > -- > > Ray O > (correct punctuation to reply) Changed the spark plugs to Denso. Cleaned IAC valve by squirting throttle cleaner in the little hole just before the throttle plate. Haven't had time yet to do throttle body cleaning, checking vacuum leaks or cleaning MAP sensor. Idle speed on the '99 is around 2000 rpm when cold. Seems high. Is this normal? Michael ******** Technically, the IAC is not supposed to be serviceable, but IMO, if it is gummed up, there is no harm in trying to free it up. It usually takes several doses of carb cleaner to free it up. There should be another hole or opening on the other side of the throttle plate. While you are at it, clean both sides and the edge of the throttle plate and the pin that the plate pivots on, and the inside of the throttle body. Wipe out the residue so it doesn't re-deposit itself in the throttle body. My un-scientific observation is that throttle bodies and IAC valves get more gummed up on cars that have not had engine oil changes done quite on schedule. Your car will have a mass air flow (MAF) or a manifold absolute pressure (MAP) sensor, but not both. I think Camrys had MAF sensors. When you clean the MAF sensor, spray some brake cleaner or electronic tuner cleaner in the opening, let the stuff drip out, then air dry. Do not use anything that will leave a coating like carb cleaner on the MAF sensor and do not stick anything inside the opening like a q-tip because you can damage the hot wire inside the opening. 2000 RPM cold idle seems a little high but it is Ok for the first 10-20 seconds. A prolonged high cold idle could also be caused by a gummed IAC valve. -- Ray O (correct punctuation to reply) |