another overheating lt1
05-22-2007, 08:04 PM
#1
another overheating lt1 i just had the old, old, old coolant replaced today and i am still overheating. the only way to stop it is to turn the heat on all the way. im thinking i might need a new thermostat, but im not sure if the fans are coming on either. any help guys?
EDIT: almost forgot, the low coolant light has stayed on, even though it is full.
EDIT: almost forgot, the low coolant light has stayed on, even though it is full.
05-22-2007, 08:07 PM
#2
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Originally Posted by landstuhltaylor
i just had the old, old, old coolant replaced today and i am still overheating. the only way to stop it is to turn the heat on all the way. im thinking i might need a new thermostat, but im not sure if the fans are coming on either. any help guys?
EDIT: almost forgot, the low coolant light has stayed on, even though it is full.
EDIT: almost forgot, the low coolant light has stayed on, even though it is full.
did you bleed it for air where that little flat head mark on the lines is?
05-22-2007, 09:39 PM
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yea a 160 will help i just had this problem , look for my thread i think may help u. But i got me a new fan motor or something and that overheatin problem stoped but im still trying to get a 160 thermostat.
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05-22-2007, 11:28 PM
#8
cooling fan's turn on at 235 degree's if im not mistaken. how hot did your car get? Check the radiator cap. a pressure test on the cap, if its not holding pressure you will over heat.
the low coolant sensor going bad is a comman problem, just leave it disconnected and it wont light up on your dash, its mounted passenger side radiator side tank.
the low coolant sensor going bad is a comman problem, just leave it disconnected and it wont light up on your dash, its mounted passenger side radiator side tank.
Last edited by LT1; 05-22-2007 at 11:39 PM.
05-23-2007, 10:22 AM
#12
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keep us posted but that thermo will help you out . also may i suggest you check the fans if those are ****** up get another fan motor or whatever that **** is called(correct me if im wrong) and get a manual fan switch.
05-23-2007, 10:27 AM
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Originally Posted by landstuhltaylor
i know its gotten to about 250. lately ive just been turning the heat on all the way to keep the temps down. ill see about the air later today.
Secondly, I think your fans may not be turning on. You should be able to hear a 'click' when they do.
I have a little trick for you to see if they work.
When your car temp needle is halfway , or 210*, click your climate **** to AC and leave all the other dash ***** on their lowest setting. By just turning the **** into the "AC" position.
Basically when you do this, the stock LTI PCM is set so when you turn your AC on at this temp or near this temp, it compensates for the extra work the motor has to do to run the AC and turns the fans on thier 'high' setting to cool the motor down.
It is very easy to hear LT1 fans on 'high', they aren't the quietest.
If your fans are not working, or your high speed 'setting' is not working, I would be shutting it off at stoplights.
If your fan are working correctly, change the thermo.
If that doesn't do it, its the waterpump.
05-23-2007, 10:34 AM
#14
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Originally Posted by That_guy
keep us posted but that thermo will help you out . also may i suggest you check the fans if those are ****** up get another fan motor or whatever that **** is called(correct me if im wrong) and get a manual fan switch.
05-26-2007, 08:42 PM
#17
update guys, the coolant has been bled, and it still overheats. the fans are not coming on AT ALL. if it sits at operating temp, it will began a slow march to 260 over about a 3-minute period. im going to pick up a new thermostat soon. i assume i need a new fan motor too.
05-26-2007, 08:46 PM
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Yea that exactly what you need , go to your autozone store and get a 160 hypertech thermo and go to summitracing and get a manual fanswitch.
PS make sure it also isnt the radiator hope we all have been a great help to you
PS make sure it also isnt the radiator hope we all have been a great help to you
