I wanted to get some help on this one. The engine in my s10 is a 4.3L V6 Pre-Vortec 1993. My gauge is always on cold so I thought hey just replace the temp sensor and it will be good. So of course like everyone I replaced the one with the yellow and black wires next to the t-stat housing. Then after a bit of research I realized there is one in the side of the cylinder head.
Now here is the problem. It is simply unplugged. I thought no problem plug it back in. Well turns out after searching all over the engine bay for the connector I cannot find it any where. So I was wondering if anyone out there can let me know the color of the wire and if someone has a pic of the pigtail and where I should be tracing it to to find it.
I have read a couple of people say its a single green wire. However theirs is also in the passenger side cylinder head. mine is in the drivers side so not sure if their the same.
Secondly I have a thought on this as well. Later GM tied both to the CTS so only one sensor was needed. My thought is if the single green wire can be tied into the yellow wire to make the front CTS control the gauge and send the ecm its information? I am assuming the black wire is ground and the yellow wire is sending the computer the actual temp of the engine. Again this is just a thought and a bit of speculation but in my mind it makes sense.
Also another question for someone who knows a bit more about the 4L60E tranny. When I was researching the common problems of the tranny I came across the delay before shifting into drive. I read it is caused by a cracked forward accumulator piston since GM used plastic crappy ones. So I thought ok just replace it. So I got prepared to drop the valve body and noticed my pan was quite deep. When upon dropping the pan (mount and cross member needed to come off to get the pan to drop) the forward accumulator was very accessible and took 3 minutes to change. No dropping of the valve body necessary. It was my understanding that in a truck from 93 this should not have happened and I should have needed to drop the valve body to replace it. Also the 1-2 accumulator piston was aluminum not plastic. Now is that usually the nature of the deep pan tranny or did someone replace it with a newer model.
I went with a sonnax pinless forward and replaced the other with a new one just for the hell of it since I had it off. As a side note the trans fluid looked very good. The pan was leaking and had been RTV glued on with make a gasket. It was a very shotty attempt at making a gasket for it. After I replaced the gasket and cleaned it up it sealed up nice. Last leak is from the tail shaft seal. Oh and I replaced the mount since it was 4 bucks for a new one from autozone and the old one the center of it just fell out of it.
Now here is the problem. It is simply unplugged. I thought no problem plug it back in. Well turns out after searching all over the engine bay for the connector I cannot find it any where. So I was wondering if anyone out there can let me know the color of the wire and if someone has a pic of the pigtail and where I should be tracing it to to find it.
I have read a couple of people say its a single green wire. However theirs is also in the passenger side cylinder head. mine is in the drivers side so not sure if their the same.
Secondly I have a thought on this as well. Later GM tied both to the CTS so only one sensor was needed. My thought is if the single green wire can be tied into the yellow wire to make the front CTS control the gauge and send the ecm its information? I am assuming the black wire is ground and the yellow wire is sending the computer the actual temp of the engine. Again this is just a thought and a bit of speculation but in my mind it makes sense.
Also another question for someone who knows a bit more about the 4L60E tranny. When I was researching the common problems of the tranny I came across the delay before shifting into drive. I read it is caused by a cracked forward accumulator piston since GM used plastic crappy ones. So I thought ok just replace it. So I got prepared to drop the valve body and noticed my pan was quite deep. When upon dropping the pan (mount and cross member needed to come off to get the pan to drop) the forward accumulator was very accessible and took 3 minutes to change. No dropping of the valve body necessary. It was my understanding that in a truck from 93 this should not have happened and I should have needed to drop the valve body to replace it. Also the 1-2 accumulator piston was aluminum not plastic. Now is that usually the nature of the deep pan tranny or did someone replace it with a newer model.
I went with a sonnax pinless forward and replaced the other with a new one just for the hell of it since I had it off. As a side note the trans fluid looked very good. The pan was leaking and had been RTV glued on with make a gasket. It was a very shotty attempt at making a gasket for it. After I replaced the gasket and cleaned it up it sealed up nice. Last leak is from the tail shaft seal. Oh and I replaced the mount since it was 4 bucks for a new one from autozone and the old one the center of it just fell out of it.