LT1/LT4 Tech 1993-1997

overheating help

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Old Jan 7, 2012 | 01:32 PM
  #1  
sgtdupree's Avatar
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Default overheating help

my car keeps over heating. i have coolant no leaks the thermostat is new and the electric water pump wired to the ignition fuse. i can hear the pump come when i turn the ignition on. if im correct i should jus need to check the coolant thermostat and pump for my source but all seem to be good. ima remove the thermostat and see what happens. any other suggestions. i gotta have it fixed by tuesday in time for work
 
Old Jan 7, 2012 | 02:41 PM
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even withouth the thermostat its still gettin hot. the pump is workin and i got coolant
 
Old Jan 7, 2012 | 09:07 PM
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Make sure you have all the air out of the system... If i have air in mine my gauge will give all kinds of crazy readings. Parking on a steep hill or jacking the nose of the car up as fas as possible when you are bleeding it helps.
 
Old Jan 7, 2012 | 11:08 PM
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when is the last time it had a coolant flush? if it has been a while, now might be the time to flush the entire system.

drain it, flush it in sections with a garden hose, put it together, fill it properly, bleed it, drive it, top it off, bleed again... should be good after that point as long as your pump and fans are working properly

is the engine throwing any codes? running lean maybe?
 
Old Jan 8, 2012 | 12:34 AM
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agree ^^^ can only be a few things, air in system or system is not doin its job cooling fluid, may be the pump is not performing. is the air dam still in place.
 
Old Jan 8, 2012 | 08:41 AM
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Check for foreign items up in front of the radiator, plastic bags are a favorite of my car. Leaves also will cause enough restriction if built up.
 
Old Jan 8, 2012 | 09:18 AM
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i flushed it about a month ago. Im bleeding the system. its not jus the gauge cuz it stated boiling over when i had it on the road. ima try flushing it again today.
 
Old Jan 8, 2012 | 09:32 AM
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Can you give us some details about your car. What year/motor/ground effects/trans/mods/etc....
 
Old Jan 8, 2012 | 01:02 PM
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94 z28. 355 eagle crank rods and pistons cc306 cam 36lbs injectors 58mm tb intake done by lloyd 1.6rr 2500 stall pacesetter long tubes. i got another thread that i been using to build the car.
 
Old Jan 8, 2012 | 01:14 PM
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i think my problem is another blown head gasket. I was flushing the coolant with a water hose and its still getting hot steam started to come outta the radiator and i got moisture and black stuff comin outta one pipe. and i put some oil on on the hot header and it bubbled. i dont have a drain pan to actualy check to c if its milky what was on the dip stick looked fine.
 
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