LT1 overheating
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Joined: Oct 2009
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LT1 overheating hey guys i'm new to the forum and new to LT1's. i just recently bought this car for cheap because the head gaskets were blown. so i just replaced both head gaskets. Now i don't know what caused the head gaskets to go out in the first place on the other owner but i know that now the cooling fans will not come on automatically. if i turn on the AC they will come on. i tried to jump pins 5 and 6 on the diagnostic port but the fans didn't come on. i know the fans work. i know the fans don't kick on till 226 or so but the gauge has gotten pretty much to the red while i was trying to see if the fans would come on.....
the car had a check engine light so i replaced the ECT sensor and the light went away but the fans still don't work automatically.....
i was wondering what you guys would suggest me to do next? i was thinking about sending my pcm to an guy online at lt1pcmtuning.com. has anyone had experience with this guy?
is something in the pcm messed up and i'm just gunna have to run manual switches for the fans or would a tune fix it?
Thanks!
the car had a check engine light so i replaced the ECT sensor and the light went away but the fans still don't work automatically.....
i was wondering what you guys would suggest me to do next? i was thinking about sending my pcm to an guy online at lt1pcmtuning.com. has anyone had experience with this guy?
is something in the pcm messed up and i'm just gunna have to run manual switches for the fans or would a tune fix it?
Thanks!
I think a tune can fix it.
The reason I say this is because for some odd reason mine weren't turning on just like yours, only if you turn on the AC. We plugged in a scanner on the obd2 port and turned the fans on through there. So that leads me to believe it may be an option for you to tune the fans for "always on".
The reason I say this is because for some odd reason mine weren't turning on just like yours, only if you turn on the AC. We plugged in a scanner on the obd2 port and turned the fans on through there. So that leads me to believe it may be an option for you to tune the fans for "always on".
Thread Starter
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Joined: Oct 2009
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sorry about that....
its a 96 auto Z28.
has anyone used this lt1pcmtuning.com before?
i'm thinking about possibly buying a separate thermostat sensor and bypassing the whole stock system and having the low fan turn on about 180 and the high fan to turn on about 190....
its a 96 auto Z28.
has anyone used this lt1pcmtuning.com before?
i'm thinking about possibly buying a separate thermostat sensor and bypassing the whole stock system and having the low fan turn on about 180 and the high fan to turn on about 190....
