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LTX and LSXPutting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.
Trying to finally finish my lt1 swap and im stuck. Putting coolant in the car and its leaking from what looks like a sensor in the block above the oil filter. Anyone know what the sensor is and why its leaking coolant?
The sensor above the oil filter is for oil pressure. There is no coolant there. Unless you have a oil cooler there and that's not a sensor in the block, it's in the cooler...but I've never seen a cooler have a sensor. My guess is your leak is from above that and it looks like the sensor is leaking. Possibly the crossover tube at the back of the block going from head to head.
The sensor above the oil filter is for oil pressure. There is no coolant there. Unless you have a oil cooler there and that's not a sensor in the block, it's in the cooler...but I've never seen a cooler have a sensor. My guess is your leak is from above that and it looks like the sensor is leaking. Possibly the crossover tube at the back of the block going from head to head.
Its a round plug in the block drivers side, it looks to have 3 prongs in a semi u shape and a square piece the coolant is coming out from, i can put my finger on the square passage and stop the coolant leak
there's only 2 ports above the oil filter. I have a crusty LT1 sitting in front of me. One is an oil port and the other goes straight through to the flywheel.
there's only 2 ports above the oil filter. I have a crusty LT1 sitting in front of me. One is an oil port and the other goes straight through to the flywheel.
Im pretty sure its right where that freeze plug is
That should be closed. It should be blind and there shouldn't be a sensor in it. Both LT1's I have sitting are like that. Maybe someone did some rigging at some point? The only thing tapped into coolant on the side of block is the drain that got used for the knock sensor. Can you take a picture? It'll probably help us help you.
That should be closed. It should be blind and there shouldn't be a sensor in it. Both LT1's I have sitting are like that. Maybe someone did some rigging at some point? The only thing tapped into coolant on the side of block is the drain that got used for the knock sensor. Can you take a picture? It'll probably help us help you.
Yea i know, ive never seen it before. Ill take a picture when i get home this afternoon
Its a block heater, i looked up the number off it and found it online, looking closer at the picture it looks like there is a center screw and its open, i wonder if it just needs closed
I thought you meant the hole near the freeze plug, My mistake. Totally a block heater. Could be loose, could have a bad seal. Not difficult to remove but a pain to install new freeze plug as it sits in the car
