static88

Ok, so my GS (with a vvt-i GTE swap) keeps overheating. I've changed the fans, the relays, and the temp switch in the motor by the exhaust cam. I also removed the old thermostat, just in case it was defective, but never replaced it, so my coolant is free-flow right now (which should mean that my should run cooler, right?). I changed the switch in the radiator around the middle of last year, so it SHOULD be good, but its still overheating for no reason that I can find. The only time the motor seems to stay cool for the longest is when I have my a/c on, but even then, after a while, the car will start to overheat. I've taken the car to multiple mechanics, and they cant seem to figure the problem out. If there's anything I missed or didn't think of, please point it out so I can try and fix this. Its my daily, and its a pain in the *** to have to deal with this headache everyday. Any help would be greatly appreciated. Thanks in advance.

LexiBlue

iTrader: (2)

you might want to do a pressure test on the coolant system. the first 2jzgte motor I put in my car was overheating every time I came to a stop light the temp would start to rise once I started driving it would drop to normal. I would lose coolant as im driving. I don't know if you are having these same issues but that would be the next thing to check maybe head gasket may have failed. hope this helps you.

lexo98

iTrader: (2)

Check to a see if you have any air trapped in the system. When the car is COMLETELY cold take off the radiator cap and start the engine. See if you can add coolant/water. If you can there was air trapped

static88

@LexiBlue Thanks, but that presents a new problem, cuz most of the shops in my area have no clue what theyre doing, lol

@lexo98 thanks, but what exactly is the fill point in the radiator? cuz no matter what, it always seems like I can add more coolant, right up to the point where it overflows, lol

gsbs300

Like Lexi said id pressure test and go from there

Chankeye

how old is the radiator? there might also be partial blockage in the core especially if the radiator has only seen tap water most it's life. just a thought.

static88

Well guys, the problem has finally been resolved. For starters, I'm an idiot. I was running the tt vvt-i motor on the OEM N/A GE radiator. I have since switched to a dual core aluminum racing radiator, and bought a new set of OEM fans. The true culprit was a half blown fuse (apparently it was blown enough to cause issues, but still worked every now and then..... idk. My head hurt trying to figure that out, so I just gave up). My mechanic had to send me to the guy who wired my harness, and he found the issue. Thanks to everyone who contributed trying to help me find an answer. I really appreciate it.