st3r3otyp3
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This little baby tells the ECU what the engine temp is and plays a important
role in proper fuel delivery to the engine. a faulty one should set a code.
things you will need
*screwdrivers
*10mm spanner
*13mm spanner
*17mm spanner
*teflon tape
*wire brush (toothbrush size)
*new coolant temp sensor $17 from holden
*5ltr bottle of coolant (the same type that you have in the car already)
First remove the air filter housing to throtle body hose (and CAI if fitted)
and remove the throtle cable from throtle adjusting plate by unscrewing the screw closest to the throtle body (pic1) so it has slide onto the cable, then pull the cable away from the throtle body until you can exit the cable in the gap on the plate, remove the plate if desired via the three 10mm screws.
now remove the PCV valve to throtle body hose (the small hose that runs from the right side of the throtle body to the passenger side rocker cover)
by undoing the clamp (mine was a press and release type but the clamp may vary).
now remove the vacume hose thats located under the throtle body that runs to the other rocker cover, now remove the throtle body by undoing the two bolts on located at the top and one at the bottom, now remove it while still in your hand unclip the TPS (throtle position sensor) wiring plug located at the bottom of the throtle body then position it out of the way (be careful not to crack the throtle body gasket as you can reuse it because its not glued on) put a plastic bag or old rag in the exposed intake manifold hole.
now drain your coolant a bit by taking off the bottom radiator hose, let a bit drain out and re-attach the hose and clamp. ( you can combine a complete flush and renewal of hose etc.. with this procedure though its your porogative). now undo the heater hose in front of the sensor (pic2&3)
now some remaining coolant might run out so have a container ready. position the hose out of the way if you need more access also remove the bypass hose located right next to the heater hose also in pic 2. Put rags in these holes aswell, you now have access to the coolant temp sensor.
Unclip the sensor wiring connector by slipping of the wire clip, then position it out of the way, now use a 17mm closed end spanner and remove the sensor, grab you new unit and thread a little teflon tape over the thread closest to the front so none gets loose and goes floating through the system.
and attach it securely (don`t over tighten) and refit the wire plug and then from here its reverse of removal. if you wan`t find the coolant temp sender (gauge) located next to this one but under the inlet manifold more and slide the one wire connecter off of it and and clean it up the connecter with a wire brush and replace just while your there.
Make sure to fit all hose clamps securly and to ajust the throtle cable right
also replace the coolant level properly and check the areas regualy for the first few days for leaks.
hope this helps
any Q`s just ask.
PIC 4 shows old and new sensors side by side.
role in proper fuel delivery to the engine. a faulty one should set a code.
things you will need
*screwdrivers
*10mm spanner
*13mm spanner
*17mm spanner
*teflon tape
*wire brush (toothbrush size)
*new coolant temp sensor $17 from holden
*5ltr bottle of coolant (the same type that you have in the car already)
First remove the air filter housing to throtle body hose (and CAI if fitted)
and remove the throtle cable from throtle adjusting plate by unscrewing the screw closest to the throtle body (pic1) so it has slide onto the cable, then pull the cable away from the throtle body until you can exit the cable in the gap on the plate, remove the plate if desired via the three 10mm screws.
now remove the PCV valve to throtle body hose (the small hose that runs from the right side of the throtle body to the passenger side rocker cover)
by undoing the clamp (mine was a press and release type but the clamp may vary).
now remove the vacume hose thats located under the throtle body that runs to the other rocker cover, now remove the throtle body by undoing the two bolts on located at the top and one at the bottom, now remove it while still in your hand unclip the TPS (throtle position sensor) wiring plug located at the bottom of the throtle body then position it out of the way (be careful not to crack the throtle body gasket as you can reuse it because its not glued on) put a plastic bag or old rag in the exposed intake manifold hole.
now drain your coolant a bit by taking off the bottom radiator hose, let a bit drain out and re-attach the hose and clamp. ( you can combine a complete flush and renewal of hose etc.. with this procedure though its your porogative). now undo the heater hose in front of the sensor (pic2&3)
now some remaining coolant might run out so have a container ready. position the hose out of the way if you need more access also remove the bypass hose located right next to the heater hose also in pic 2. Put rags in these holes aswell, you now have access to the coolant temp sensor.
Unclip the sensor wiring connector by slipping of the wire clip, then position it out of the way, now use a 17mm closed end spanner and remove the sensor, grab you new unit and thread a little teflon tape over the thread closest to the front so none gets loose and goes floating through the system.
and attach it securely (don`t over tighten) and refit the wire plug and then from here its reverse of removal. if you wan`t find the coolant temp sender (gauge) located next to this one but under the inlet manifold more and slide the one wire connecter off of it and and clean it up the connecter with a wire brush and replace just while your there.
Make sure to fit all hose clamps securly and to ajust the throtle cable right
also replace the coolant level properly and check the areas regualy for the first few days for leaks.
hope this helps
any Q`s just ask.
PIC 4 shows old and new sensors side by side.
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