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The 2 bolts that hold in the radiator in my 2005 chevy Colorado z71 will not unscrew, they are 6 point star bolts. I have tried everything I could think of. NEED HELP ASAP!!!!

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If rusted let soak in penetrating oil or if stripped drill and use an extractor tool

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How do you replace a thermostat in a 2005 z71 4x4 chevy colorado

Disconnect upper radiator hose from engine and the thermostat should be there. I have worked on vehicle that had thermostat underneath so if it is not located in upper radiator hose it will be in the bottom hose

Jun 12, 2017 | Cars & Trucks

1 Answer

How do you replace fuel injectors in 2005 Chevy

remove the bolts that hold the fuel rail. Lift the fuel rail, pulling the injectors out carefully. Make sure the rubber seal comes out with the injector. Remove the electrical clip for the injectors you want to change. Clip in the new injector, and replace the fuel rail and the injectors.

Oct 06, 2014 | 2005 Chevrolet Colorado

1 Answer

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

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 . These are genericinstructions. If you get stuck or need specific instructions for your car,please get back to me


Oct 06, 2011 | 2004 Chevrolet Colorado

1 Answer

Check engine light on error code 0300 2005colorado z71

There is a service bulletin out for this code. Error Code P0300 indicates a need to replace the exhaust valve springs and seals. This mean the head has to come off and the proper repair performed. Your probably getting a little knocking at this point. If your truck should be under warranty have the dealership repair this. Parts to include
  1. 2596078 - Spring Exhaust Valve x 10
  2. 2596501 - Seal Exhaust Valve Stem x 10
  3. 24100165 - Gasket Throttle Body x 1
  4. 12565425 - Bolt, Camshaft x 1
  5. 24100263 - Bolt, Camshaft Position Actuator x 1
  6. 12586690 - Gasket Kit, Intake Manifold x 1

Regards, Tony

Apr 13, 2011 | 2005 Chevrolet Colorado

1 Answer

How many oil liters requries the colorado Z71 2006?


Dec 23, 2010 | 2006 Chevrolet Colorado

1 Answer

How does the bed on my 2006 chevy colorado attach to the frame? Do bolts just screw into nuts that are welded to the bed?

Yes it is connected with shoulder bolts and nuts up inside the frame. Some have star bolts that can be taken out from inside the bed.

Sep 29, 2009 | 2006 Chevrolet Colorado

1 Answer

2005 Chevy Colorado edit

If you put the tail gate down, there is 2 screw (phillips) that holds the tail light in place. Remove them & you can twist the bulb out. Thats it, put back together in reverse. Hope this helps.

May 21, 2009 | 2005 Chevrolet Colorado

1 Answer

What is the length of 2005 Chevy Colorado Z71 oil dipstick

If the manuel says 6 qt thats what it takes. Sometimes 5 min is not enough time for all the oil to run down from the top of the engine check the oil after 1 hour if you removed the same amount that you put in I think you are safe

Mar 18, 2009 | 2005 Chevrolet Colorado

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