Thread: Engine swap done, problems

I think the alts are the same the bracket is different. Dont run your engine with a internal coolant leak.

I thought so too but there totally different, The brackets are different, but there molded to the case. That's why I was going to swap cases.


Also I'm thinking the coolant leak is the Supercharger gasket, seems alot of people have problems with it and knowing the luck I have its the same.

EDIT: Yes RTV is on the corners of the LIM gaskests, but that should have nothing to do with a coolant leak its mostly for oil. Also the LIM gaskets are the Alliumuin ones if that matters.

if the lim gasket is bad or not sealed properly you'll have a coolant leak. the gaskets are crush gaskets and need to be replaced everytime. oil goes into the heads, coolant and air travel through the lim, in seperate parts.

take the alternator to autozone or similar parts store and have them test it, its usually free.

the connectors at the wheels connect to the abs sensor and then connect again to the harness, each side is opposite so you cant screw it up.

i had some small problems when i did the swap and most of it was corrosion on my old wiring harness. i swapped with a 2000 gtp harness and was good to go. i also added the HUD and digital DIC by splicing into the wires, no need to change the BCM.

as far as tuning goes, i joined a local forum and had good luck with local guys helping me out when money is short. lots of good local deals on parts too

Had the alternator tested, siad it was fine. I came home and went over the entire circuit, everything has power that is supposed to have it. So the only thing left is the battery its self I guess. I don't have a tester to do a load test so I'm going to have to take it somewhere. Its a AcDelco battery with a 60 month warranty and its only a year old. So I'm not sure if the place would test it before they replace it or just replace it.

And i cheeked the oil dip stick yesterday and there where some bubbles on it meaning there water in there, so that says Head Gasket but can't a LIM thats not sealed right do the same thing?

Because when I start it up there is no smoke, no puff just a small steady steam out of it doesn't seem to get wrose either if you hit the gas.

Thanks for the help guys, hopefully soon I will get these problems worked out.

steam out of the exhaust is ok as long as its exhaust. moisture will get into the exhaust especially in these colder months. cup your hand over the exhaust and smell your hand. if it smells like coolant then you probably do have a head gasket leak. buying used motors is always a risk of something being wrong.

Drain the oil and check it for coolant as its draining. in a few more days drain it again and look for coolant. if its clean you should be good, just keep an eye on it.

The smell is coolant, but its only a good stream of it and keep in mind I do live in Florida hot pretty much all the time. It just doesn't do it at start up takes a min or two then it starts to trickle out.


But I am really trying to figure out why the Alternator is not charging the battery. It was checked and turned out fine, all the fuses are good and anything that needs power has it. The last thing that I have not checked is the Cluster. I know the temp guage is not working right becouse it was reading about 180 while the scan tool had it at 215. All the lights do work I know that but I'm wondering if something is burned out inside and if it would make the alternator not charge it.

Also checked the connections on the ABS and all that is fine, but the ABS and TCS lights are on.

Thanks for the help guys.

a bad battery wont charge. just because the alt checked out fine doesnt mean its not bad.

find someone with a Snap On scan tool or something similar to check the ABS code, did you hook up the wheel speed sensor?