Expensive_Habits
Newbie
Truck: 1994 K1500 5.7L 4L60E 4x4
I need some serious help. Obviously I would go to a mechanic if I had the money but I simply don't at this moment.
My K1500 is having a lot of issues related to engine performance and pretty much everything wrong can be roughly traced back to the engine coolant temperature sensor. I have come to realize that there are two different sensors: one on the intake and one between two of the spark plugs on the driver's side of the engine.
Everything seemed to be in order at first glance. And not knowing much about cooling systems or electronics. I replaced my thermostat just to be safe, being that I had no idea how old it was. When I took the thermostat out the O-ring crumbled when I pushed on it... so it's safe to say that it was fairly old. But when I replace the sensor I realized that it doesn't have any wires coming directly from it so it is mechanical and while a faulty thermostat could still definitely affect performance... it wouldn't really have anything to do with the gauge not working whatsoever. Or at least that's what I figured.
After some further investigation I found out that I had made a major oversight... the sensor that is located between the spark plugs, has two wires on the plug. I somehow missed that one of them is completely severed. The problem is, I have no idea where the other half of that wire is or where it plugs in. Does it plug directly into the ECM? Or is there a different location i should be looking for this stray wire??
From what "research" I have done in the forums and on ShopKeyPro: I have figured out that the plug that I'm referring to is indeed the one that gives the signal to the gauge.. but I worry that the wire is cut at a point that there may be no signal going to the ECM, let alone the gauge. I'm not really sure where to go from here and if somebody could take pictures of their wiring going from that specific sensor to whatever location it's supposed to go to I would greatly appreciate it.
I need some serious help. Obviously I would go to a mechanic if I had the money but I simply don't at this moment.
My K1500 is having a lot of issues related to engine performance and pretty much everything wrong can be roughly traced back to the engine coolant temperature sensor. I have come to realize that there are two different sensors: one on the intake and one between two of the spark plugs on the driver's side of the engine.
Everything seemed to be in order at first glance. And not knowing much about cooling systems or electronics. I replaced my thermostat just to be safe, being that I had no idea how old it was. When I took the thermostat out the O-ring crumbled when I pushed on it... so it's safe to say that it was fairly old. But when I replace the sensor I realized that it doesn't have any wires coming directly from it so it is mechanical and while a faulty thermostat could still definitely affect performance... it wouldn't really have anything to do with the gauge not working whatsoever. Or at least that's what I figured.
After some further investigation I found out that I had made a major oversight... the sensor that is located between the spark plugs, has two wires on the plug. I somehow missed that one of them is completely severed. The problem is, I have no idea where the other half of that wire is or where it plugs in. Does it plug directly into the ECM? Or is there a different location i should be looking for this stray wire??
From what "research" I have done in the forums and on ShopKeyPro: I have figured out that the plug that I'm referring to is indeed the one that gives the signal to the gauge.. but I worry that the wire is cut at a point that there may be no signal going to the ECM, let alone the gauge. I'm not really sure where to go from here and if somebody could take pictures of their wiring going from that specific sensor to whatever location it's supposed to go to I would greatly appreciate it.