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How do I clean my Duramax coolant reservoir?

How do I clean my Duramax coolant reservoir?

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  1. Unbolt the coolant expansion tank, unplug the rubber hose and remove the tank from the car.
  2. Fill the tank to the brim with undiluted calcium-lime-rust remover.
  3. Screw the lid back on and allow the expansion tank to sit for at least an hour, preferably overnight.

Why does my Duramax surge?

The most common culprit is a tiny air leak in the fuel system somewhere. Inspect the flexable fuel lines from the tank to the fuel pump, if there is even the tinest air leak, surging, hard starting, and infrequently small drops of fuel on the driveway happen.

What kind of antifreeze does a 2008 Duramax take?

Prestone 50/50 Coolant/Antifreeze.

What kind of coolant does a GM Duramax use?

The Fleece FPE-DMAX-CBOP Coolant Block-Off Plate is a direct fit replacement for the leaking rear engine coolant cover in your 2001-2017 GM 6.6L Duramax. This block-off plate is thicker than the factory plate and has an integrated O-ring that replaces the stock gasket.

What is the GM coolant bypass tube seal for Duramax?

The GM 94011603 Coolant Bypass Tube Lower Pipe Seal is a genuine GM part for your 2001-2016 GM 6.6L Duramax. Choose OEM seals for a perfect fit and long service life on your Duramax.Features:Genuine OEM ReplacementDirect-Fit Installation

Why does my Duramax engine have low coolant level?

After the engine has been thermally cycled, air rises and causes the coolant to become lower than when initially filled. During a Pre-Delivery Inspection (PDI), the coolant level may appear low, but is at a level high enough to keep the Low Coolant message off.

Where is the coolant sensor on a Duramax Diesel?

7) The horizontal line is a baffle inside the surge tank that keeps the coolant from sloshing inside the tank and tripping the coolant level sensor, which is located below the baffle. A full coolant level will show the coolant at the bottom of the radiator surge tank fill neck.

How to remove coolant from Duramax diesel engine?

It has left hand threads; turn the cap clockwise to remove the cap and counterclockwise to install the cap. If the cap is turned in the wrong direction when installing or removing it, there may damage to the cap and/or the surge tank.

After the engine has been thermally cycled, air rises and causes the coolant to become lower than when initially filled. During a Pre-Delivery Inspection (PDI), the coolant level may appear low, but is at a level high enough to keep the Low Coolant message off.

7) The horizontal line is a baffle inside the surge tank that keeps the coolant from sloshing inside the tank and tripping the coolant level sensor, which is located below the baffle. A full coolant level will show the coolant at the bottom of the radiator surge tank fill neck.

Is the coolant level on my Silverado Sierra low?

A Low Coolant message may be displayed on the Driver Information Center of some 2017-2018 Silverado and Sierra models equipped with the 6.6L Duramax diesel engine (RPO L5P). An inspection of the radiator surge tank may appear to show a low coolant condition.

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Ruth Doyle