87manche1 Posted January 22, 2013 Posted January 22, 2013 1987 comanche 4.0 auto on the driverside what is the green sensor was black. Not used to the renix yet. Ill need to pick one up this weekend
HOrnbrod Posted January 22, 2013 Posted January 22, 2013 Knock sensor I think? But I'm not a Renix aficionado.
87manche1 Posted January 22, 2013 Author Posted January 22, 2013 Ya i think so to electrical end looks like a injector. Auto zone wants 70 ill just go to pulla part
Akula69 Posted January 22, 2013 Posted January 22, 2013 Knock sensor. Be sure your sitting down when you price it :eek:
skidoo_j Posted January 22, 2013 Posted January 22, 2013 Wait wait wait which sensor are you referring to? there are two right there. The one just above the mount is your coolant temp sensor for your ecu on renix. The longer one further back and lower (just above oil pan) is the knock sensor. From my research they hardly ever fail unless physically damaged. I replaced mine simply because I've replaced all sensors trying to chase a ghost in my system.
HOrnbrod Posted January 22, 2013 Posted January 22, 2013 1987 comanche 4.0 auto on the driverside what is the green sensor was black. Not used to the renix yet. Ill need to pick one up this weekend Pretty sure he was asking about the green sensor. Not sure about the "was black" that followed though.
87manche1 Posted January 22, 2013 Author Posted January 22, 2013 Hornbrod is right.that sensor by the oilpan. When it broke it took off the black coating and wires
Minuit Posted January 22, 2013 Posted January 22, 2013 I think he's saying that the green sensor used to be black.
JFAComanche6 Posted January 22, 2013 Posted January 22, 2013 That green sensor with the two prongs sticking out of it is for sure the knock sensor. And holy crap, those got expensive! They're on rockauto.com for about $60 without shipping.
87manche1 Posted January 22, 2013 Author Posted January 22, 2013 Yea its crazy stupid pullapart time $2 maybe
Keyav8r Posted January 22, 2013 Posted January 22, 2013 I have the same sensor on my truck. Couldn't figure out what it was as Advance Auto shows the knock sensor as cylindrical in shape with a bolt through the center to attach it to the block.
Keyav8r Posted January 22, 2013 Posted January 22, 2013 I also checked Autozone, O'Reillys, and Rock Auto for a 88 MJ, 4.0 knock sensor. All three show the same type sensor as AA. It actually uses a stud with a flange that screws into the block and the sensor slides onto the other end and is held in place by a nut. But my 88 has the style shown in the photo?
JFAComanche6 Posted January 23, 2013 Posted January 23, 2013 Yea its crazy stupid pullapart time $2 maybe I don't like buying electrical parts from the jy, but $2 versus $62 is a lot better for these stupid sensors. I guess one could buy about 4 of these sensors if they broke again.
87manche1 Posted January 24, 2013 Author Posted January 24, 2013 They do carry 30 day warranty if u pay for it
HOrnbrod Posted January 24, 2013 Posted January 24, 2013 Knock sensor configurations near bottom of the page: http://www.lunghd.com/Tech_Articles/Engine/Basic_Sensors_Diagnostics.htm
87manche1 Posted January 24, 2013 Author Posted January 24, 2013 Good page bookmarked thanks hornbrod
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