Where is the low coolant message on a Duramax?

During PDI, coolant should be added to fill the upper chamber of the radiator surge tank. (Fig. 6) A coolant level that is low enough to turn on the Low Coolant message will be below the horizontal line across the radiator surge tank. (Fig.

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.

What causes a Duramax diesel engine to heat up?

When the engine is working hard, the turbocharger is drawing in a ton of air, and the restrictive stock turbo inlet tube can effectively choke the VGT turbocharger causing the compressor outlet temperature to skyrocket, heating up the intercooler, and ultimately raising the temperature of combustion and the coolant temp.

Are there any problems with the LLY Duramax?

In terms of LLY injector problems, GM had sorted out the internal failures with the 2004 ½ redesign, but the LLY Duramax would occasionally exhibit a trouble code for the injectors, but in most cases it turned out to be an issue with the injector harness rubbing through and causing a short or open in the wiring.

What is glowplug fault on GMC Duramax Diesel?

P133F is #8 glowplug hot resistance fault. Did you determine if the Elevated Idle is enabled? Are you using remote start? If not, are you giving waiting for glowplug light to go out before turning key to ‘start’? Elevated idle was not activated….it is now though.

What’s the Check Engine light on a Duramax?

Started up fine. Only thing i noticed was that the oil pressure was pegged out at 120 and the battery was around 10 or 11 marker on the gauge. Ran and drove fine. Keep in mind the temp was around 18F this morning when i left for work. You will need a scanner to pull the codes.

What causes coolant to blow out the overflow tube?

If the reservoir is filled too full, excess will blow out the overflow tube when the coolant heats and expands. Assuming that you’re not filling the reservoire beyond the “cold” fill line when cold or the “hot” fill lline when hot, then the cause of the overflowing is either overheating…

What causes low coolant level in radiator surge tank?

The low coolant level in the radiator surge tank may be due to the fill process at the assembly plant, which cannot purge all of the air from the cooling system and the surge tank. After the engine has been thermally cycled, air rises and causes the coolant to become lower than when initially filled. Coolant Levels

What happens if the coolant reservoir is too full?

If the reservoir is filled too full, excess will blow out the overflow tube when the coolant heats and expands.

How many versions of the Duramax diesel engine are there?

All told, there are six different iterations of the Duramax diesel engine: LB7, LLY, LBZ, LMM, LML, and L5P spanning from 2001 to the present day. Each version of the engine has its own issues and quirks, and some are less problematic than others.

LLY Duramax trucks don’t suffer from the same injector failure problems that LB7 trucks frequently had. Instead, many LLY Duramax problems stem from overheating. A new variable vane turbocharger and an EGR system were also added. Check out our LLY Duramax Specifications chart below for detailed information!

What happens when a Duramax engine goes down?

Not only does this mean game-over for the engine, but it results in a truck that’s down for weeks (if not months) and a huge chunk of change missing from your wallet. The failure is most common in higher horsepower engines, but can still occur in moderately modified and even stock power plants.

Which is the best engine for a Duramax truck?

There are a ton of bolt-ons that make driving a Duramax-powered ¾-ton Chevy or GMC much more fun than operating a 7,500-pound pickup should be. Already the quickest trucks out of the box among the Big Three, it doesn’t take much to keep them at the front of the pack.

What to do if your Duramax cooler goes bad?

Lastly we replace a fair amount of glow plug controllers as well. You will usually get a diagnostic trouble code for the cooler when they go bad. Head Gaskets – As these truck reach the 100,000-150,000 miles we are seeing more and more head gasket issues. The Duramax has a multi-layer steel head gasket.

What is the first year of the Duramax?

The LB7 Duramax was first introduced for the 2001 model year as General Motors retired its 6.5L Detroit diesel. In every possible way, the Duramax was superior to the outdated Detroit and marked a revolutionary turning point for GMC and Chevrolet pickups in the diesel marketplace.

What should the temp be on my GMC Truck?

After getting it back from having leaking intake gasket replaced, the temp would go up to 260 before it went back to 170 and then would sit for a little bit, go back to 210, back to 170, back to 245 or so, then back to 170, but It never seemed to run hot. I changed the thermostat with a brand new 190* from NAPA and it seemed to cure a little of it.

What should coolant level be in radiator surge tank?

A full coolant level will show the coolant at the bottom of the radiator surge tank fill neck. (Fig. 8) If a low coolant level is found, add one quart (0.946 liter) of Dex-Cool ® coolant to the upper chamber of the coolant surge tank in order to bring the level up to the bottom of the surge tank fill neck.

What kind of transmission does a Duramax diesel use?

It was the first to come bolted to the six-speed Allison transmission which provides a lower cruising RPM and greater fuel efficiency when compared to the five-speed on the LB7 and LLY.

Which is the best lift pump for a Duramax?

The FASS Titanium Signature Series Lift Pump is an excellent upgrade for any Duramax. When GM changed body styles with the 2008 Duramax, the redesign coincided with some new regulations from the EPA regarding emissions equipment on light duty trucks.

It was the first to come bolted to the six-speed Allison transmission which provides a lower cruising RPM and greater fuel efficiency when compared to the five-speed on the LB7 and LLY.

How can I Keep my Duramax Diesel pump healthy?

However, there are measures you can take to keep the pump happy and healthy, the first being to always buy your diesel from a high-traffic, reputable filling station that’s known to dispense good, clean fuel. Second, always change the fuel filter at or before the recommended service interval.

Why does my GMC 2500 have a low coolant light?

A good diagnosis goes a long way. Would’ve saved you from having to buy 2 coolant tanks. I have a 2017 GMC 2500 HD with the 6.6 Duramax. The truck now has about 35,000km on it and the low coolant message is appearing at almost every start up. The tank is not low but I topped it off right to the cap and the message still pops up.

What does it mean when your coolant level is low?

Oil change, etc. Couple days later a coolant level low message appears ocassionally. Pop the hood and the coolant tank is full. Anybody have this problem before or can lead me to the issue. Truck is a 2015.

What are the features of a GM Duramax cooling system?

This radiator features a 2-3/4″ thick tube and fin core that delivers superior heat dissipation and improved coolant flow over the factory radiator for maximum cooling efficiency. The fabricated end tanks are manufactured out of 1/8″ aluminum plates for durability and strength.

What is lower radiator hose for GM Duramax?

The GM 25841843 Lower Radiator Hose is a direct replacement for the aging lower coolant hose on your 2006-2010 GM 6.6L Duramax. Over time the factory hoses can become brittle and cause leaks due to age and countless heat cycles. Choose OE GM / ACDelco products to ensure a perfect fit and finish.

What does it mean when coolant level is low on new truck?

The “Coolant Level is low” warning came on this morning. Is this typical for a brand new truck? I have never had this happen with a vehicle that is that new. I don’t know if diesels burn up the coolant or if there is a problem with my truck. I just had it serviced on Tuesday and the dealer didn’t say if the level was low either.

Where is the low coolant message on a Duramax?