ect sensor
Been digging around and im not able to find a picture of where im supposed to find this thing, i hear its on the drivers side head but if im looking at it correctly this thing is pretty low with a ton of crap in the way, i was hoping i wasnt going to have to remove a crap load of stuff to get my big hand down there to unscrew it and put the new one in, anyone have a pic of the ect sensor on a newer model blazer? pref 2004.
i took a pic of what i think the ect sensor is, am i correct?

if that is the ect sensor im guessing the best course of action would be to remove it from under the wheel well as if i was changing that pesky spark plug.
thanks for any thoughts guys,
little extra info, this all started from getting a p0128 code, the temp gauge reads hot sometimes and reads normal other times.
i took a pic of what i think the ect sensor is, am i correct?

if that is the ect sensor im guessing the best course of action would be to remove it from under the wheel well as if i was changing that pesky spark plug.
thanks for any thoughts guys,
little extra info, this all started from getting a p0128 code, the temp gauge reads hot sometimes and reads normal other times.
Last edited by Brian_D; Dec 27, 2013 at 02:09 PM.
hope this helps!
alldata shows it pays .5 hr to replace.
Service & Repair description:
REMOVAL
1. Turn OFF the ignition.
2. Loosen the wing nuts on the air cleaner cover and air cleaner outlet duct.
3. Move the air intake assembly aside.
4. Drain the cooling system below the level of the engine coolant temperature (ECT) sensor.
5. Disconnect the ECT sensor harness connector.
6. Remove the ECT sensor.
INSTALLATION
1. Coat the threads (only) with GM P/N 12346004 sealer or equivalent.
2. Install the ECT sensor in the engine.
Tighten
Tighten the sensor to 20 N.m (15 lb ft).
3. Connect the ECT sensor harness connector.
4. Refill the cooling system.
5. Install the air cleaner outlet duct assembly and tighten the wing nuts.
6. Connect the negative battery cable.
alldata shows it pays .5 hr to replace.
Service & Repair description:
REMOVAL
1. Turn OFF the ignition.
2. Loosen the wing nuts on the air cleaner cover and air cleaner outlet duct.
3. Move the air intake assembly aside.
4. Drain the cooling system below the level of the engine coolant temperature (ECT) sensor.
5. Disconnect the ECT sensor harness connector.
6. Remove the ECT sensor.
INSTALLATION
1. Coat the threads (only) with GM P/N 12346004 sealer or equivalent.
2. Install the ECT sensor in the engine.
Tighten
Tighten the sensor to 20 N.m (15 lb ft).
3. Connect the ECT sensor harness connector.
4. Refill the cooling system.
5. Install the air cleaner outlet duct assembly and tighten the wing nuts.
6. Connect the negative battery cable.
Last edited by DesertStorm; Dec 27, 2013 at 04:07 PM.
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