C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

1988 c4 - temp question

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Old Apr 28, 2012 | 05:10 PM
  #21  
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foreveraudio
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From: DFW texas
Default ok well

teste the radiator and sprayed a hose in the upper hose end and it comes out the bottom fine - so i assume the radiator is working fine -

im gonna put anotherwater pump on tonight -

but if no coolant comes out of the heater hoses when i start the car again tonight what else could the issue be ?
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Old Apr 28, 2012 | 08:30 PM
  #22  
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foreveraudio
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From: DFW texas
Default need answer asap

ok so i sprayed a hose into the block of the engine in the hole where the water pump would sit and i barley get anything coming out of the opposite side , is that normal cause i dont have enough pressure from a hose ? cause i was wondering if there was a clog in the blog and the waterpump was never the problem

let me know asap, thanks all

UPDATE - SO OK I TOOK MY HOSE SPRAYED WATER INTO THE BLOCK , THE HOLES WHERE THE WATER PUMP GOES AND WATER COMES OUT OF BOTH SIDES - NOW MY QUESTION IS WHEN I SPRAYED WATER INTO THE HOLE ON THE INTAKE MANIFOLD WHERE THE THERMOSTATE WOULD GO - NO WATER COMES OUT THE HOLES WHERE THE WATER PUMP GOES - SHOULD THERE BE WATER THAT COMES OUT THE HOLES IN THE BLOCK WHERE THE WATER PUMP GOES IF YOU SPRAY WATER INTO THE THERMOSTATE HOLE ?

Last edited by foreveraudio; Apr 28, 2012 at 11:17 PM. Reason: update
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Old Apr 30, 2012 | 08:59 AM
  #23  
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From: Columbus Oh
Default

Originally Posted by foreveraudio
ok so i sprayed a hose into the block of the engine in the hole where the water pump would sit and i barley get anything coming out of the opposite side , is that normal cause i dont have enough pressure from a hose ? cause i was wondering if there was a clog in the blog and the waterpump was never the problem

let me know asap, thanks all

UPDATE - SO OK I TOOK MY HOSE SPRAYED WATER INTO THE BLOCK , THE HOLES WHERE THE WATER PUMP GOES AND WATER COMES OUT OF BOTH SIDES - NOW MY QUESTION IS WHEN I SPRAYED WATER INTO THE HOLE ON THE INTAKE MANIFOLD WHERE THE THERMOSTATE WOULD GO - NO WATER COMES OUT THE HOLES WHERE THE WATER PUMP GOES - SHOULD THERE BE WATER THAT COMES OUT THE HOLES IN THE BLOCK WHERE THE WATER PUMP GOES IF YOU SPRAY WATER INTO THE THERMOSTATE HOLE ?

Yes, if you take the water pump off and fill the thermostat hole in the intake with water, it should run out of the water pump holes. Did your intake manifold gaskets have little metal squares that were installed into the ends of the intake gaskets? If so, you might have the water restricted and the flow would be basically blocked.
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