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How do I repair a radiator leak on my 2004 Chevrolet Colorado?

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It really depends on where the leak is. If it is leaking in the radiator core, a can of Bars Leak will take care of it for a while. If the leak is in the side tanks there is a product made by Permatex called fuel tank and radiator repair kit that works very well. Both of the products can be found at your local Auto Zone parts store.
Good luck.

Posted on Nov 17, 2009

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2004 Chevy Colorado p0036


Change the 02 sensors and check for vacuum leak hoses evap , then disconnect battery and test again .

Jan 23, 2013 | 2004 Chevrolet Colorado

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Need to replace thermostat


Thermostats on I-4 and I-5 Colorado's are very straight forward, the thermostat and the housing are a single unit. Thermostat housing is sealed by a rubber seal and is held on to block by two bolts. Procedure is as follows

1.drain cold coolant by removing radiator cap and using radiator drain petcock.

2. disconnect top hose from thermostat

3. unbolt thermostat housing.

4. install new housing, be careful to not overtorque, block is aluminum

5. connect top hose and close drain petcock

6. refill with new coolant and close radiator cap

7. start engine and check for leaks.

8. if no leaks are detected, allow engine to reach operating temperature. shutdown and allow to cool completely, verify that coolant level is correct.

Oct 27, 2012 | 2006 Chevrolet Colorado

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How to change the thermastat on a 2004 colorado 3.5


MAKE SURE THE TRUCK IS COLD FOLLOW THE RADIATOR HOSE ON THE RIGHT TO THE THERMOSTAT REMOVE THE HOUSING REMOVE OLD ONE CLEAN OLD GASKET AND REPLACE WITH NEW ONE

Sep 25, 2012 | 2004 Chevrolet Colorado

1 Answer

Hello jonah! i need to replace a thermostat on my 2004 chevy colorado, 3.5 litre engine can you tell me where it is located on my engine?


Check this procedure for Canyon, Colorado 2004-2005 - Removal & Installation
  1. Drain the cooling system.
  2. Raise and support the vehicle only high enough to access the thermostat housing through the wheelhouse.
  3. Remove the left wheelhouse liner.
  4. Remove the radiator inlet hose from the thermostat housing.
  5. Remove the thermostat housing bolts.
  6. Remove the thermostat housing from the engine block.
  7. Clean and inspect the thermostat housing.
  8. Clean and inspect the sealing surface of the engine block.
To install:
  1. Position the thermostat housing to the engine block.
  2. Install the thermostat housing bolts and tighten to 89 inch lbs. (10 Nm).
  3. Connect the radiator inlet hose to the thermostat housing.
  4. Install the left wheelhouse liner.
  5. Lower the vehicle.
  6. Fill the cooling system.
  7. Inspect all sealing surfaces for leaks after starting the engine.
  1. Drain the cooling system.
  2. Raise and support the vehicle only high enough to access the thermostat housing through the wheelhouse.
  3. Remove the left wheelhouse liner.
  4. Position the hose clamp pliers to the clamp to remove the radiator inlet hose from the thermostat housing.
  5. Remove the thermostat housing bolts.
  6. Remove the thermostat housing from the engine block.
  7. Clean and inspect the thermostat housing.
  8. Clean and inspect the sealing surface of the engine block.
To install:
  1. Position the thermostat housing to the engine block.
  2. Install the thermostat housing bolts and tighten to 89 inch lbs. (10 Nm).
  3. Connect the radiator inlet hose to the thermostat housing.
  4. Install the left wheelhouse liner.
  5. Lower the vehicle.
  6. Fill the cooling system.
  7. Inspect all sealing surfaces for leaks after starting the engine.
Hope helps (remember to rating this answer).

Oct 06, 2011 | 2004 Chevrolet Colorado

1 Answer

Where is the thermostat located on my 2004 chevy colorado z71 3.5litre engine


The thermostat is under the housing at the end of the upper radiator hose. Please see my tip at http://www.fixya.com/cars/r5929960-s_thermostat . These are genericinstructions. If you get stuck or need specific instructions for your car,please get back to me

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Oct 06, 2011 | 2004 Chevrolet Colorado

1 Answer

Where is the radiator drain plug located on the 2004 Chevy Colorado? (Drain ****??)


The drain plug is located on the bottom of the radiator.

Most drain plug ismake of inexpensive nylon/plastic and it may fall apart while you turn it.

The professional method is to loosen the lower radiator clamp and drop to lower radiator hose.

Drain the coolant onto a large drain pan and recycle the coolant.

Dec 31, 2009 | 2004 Chevrolet Colorado

1 Answer

Replace radiator, 2004 Chevy Colorado


Drain fluid and despose of at an autoparts supplier.Do not drain on to ground,do not open cap hot.Dissconnect hoses and any brackets going to the radiator be careful fluid is still in the hoses.You then pull up on the radiator and take it out be sure to remove electric fan or plastic fan shroud.Disconnect the overflow hose located toward the radiator cap or left side of radiator.Make sure all the brackets top to bottom off the radiator are unbolted.Good luck!

Dec 11, 2009 | 2004 Chevrolet Colorado

1 Answer

2004 4x4 colorado water leaking in threw the cab brake light


take the light cover off get some clear silicone put in around the wires and a small amount around the light cover its self

Oct 04, 2009 | 2004 Chevrolet Colorado

1 Answer

Vacuum leak


plastic cover must come off to repair hose< hope you have a garage friend he will help you if not post it again i will ask my mechinic.

Feb 22, 2009 | 2004 Chevrolet Colorado

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