My first ls swap and motor seized HELP
04-23-2018, 11:20 PM
#1
Registered User
Thread Starter
Join Date: Apr 2018
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
My first ls swap and motor seized HELP Hi everyone after 7 months of working on this project
putting a ls1 with 4l60e into a 89 jeep comanche I finally finish with wiring. I decided to start the engine with no water just to see if it will fire up ... first attempt and engine fire right up tears of joy I was so happy. To hear it run... so i started putting everything back radiator,hoses, fans, build the exhaust ect... so when I had everything put back together i started the truck let it run for 15 mins to get operational temp. Put in reverse and it dies back to park started the truck 10 seconds and it died.. try starting no crank just a click from the starter. I kept clicking it to see if the starter was stuck then I see smoke the negative terminal had melted.. and ground wire was really hot so I when to the auto parts store bought new cable and terminal, I then started the engine 3 seconds and it died now i replace the starter, cables, battery it's new.. went on YouTube so they said try to turn engine by hand. So try that and nope no luck turning the engine. By hand so that's why my starter cables were getting hot because the starter cant turn the engine... why would the engine seize, had 98k miles from the wreck t/a before I started i put 6 quarts of new 10-30w synthetic oil. I'm loss need help hopefully it's not seize could of the torque converter seize the engine?
putting a ls1 with 4l60e into a 89 jeep comanche I finally finish with wiring. I decided to start the engine with no water just to see if it will fire up ... first attempt and engine fire right up tears of joy I was so happy. To hear it run... so i started putting everything back radiator,hoses, fans, build the exhaust ect... so when I had everything put back together i started the truck let it run for 15 mins to get operational temp. Put in reverse and it dies back to park started the truck 10 seconds and it died.. try starting no crank just a click from the starter. I kept clicking it to see if the starter was stuck then I see smoke the negative terminal had melted.. and ground wire was really hot so I when to the auto parts store bought new cable and terminal, I then started the engine 3 seconds and it died now i replace the starter, cables, battery it's new.. went on YouTube so they said try to turn engine by hand. So try that and nope no luck turning the engine. By hand so that's why my starter cables were getting hot because the starter cant turn the engine... why would the engine seize, had 98k miles from the wreck t/a before I started i put 6 quarts of new 10-30w synthetic oil. I'm loss need help hopefully it's not seize could of the torque converter seize the engine?
04-24-2018, 11:47 AM
#2
On The Tree
Did you leave the trans in neutral and pull all of the plugs to lessen the resistance?
I noticed when trying to turn the engine by hand with a socket wrench, it wouldn't turn. (Engine out of car) I took the trans off and it spun freely. Not sure if I had something binding up on the back end, (4l80e-5.3) but that's my experience.
I noticed when trying to turn the engine by hand with a socket wrench, it wouldn't turn. (Engine out of car) I took the trans off and it spun freely. Not sure if I had something binding up on the back end, (4l80e-5.3) but that's my experience.
04-24-2018, 04:17 PM
#6
Several things come to mind.. Did you swap oil pans/pick up tubes? Because if you did and didnt get the o ring seated right it may have been sucking air and not oil. Like the other guy said, did it have oil pressure when it was running? I have never personally seen an automatic transmission sieze up and keep an engine from running, but take the 3 torque converter bolts out and see if it spins freely.