Are there any issues with the Duramax pickup?

This can produce long cranks and hard starts. Glow Plug System Issues – Nearly half of the check engine lights that come in for the Duramax pickups are for glow plugs. The glow plugs burn out over time and can be a real nuisance to remove from the aluminum heads sometimes.

What to do if your Duramax crankshaft is weak?

The ultimate fix for the weak factory crankshaft is to replace it with a stronger unit that’s been internally balanced. The billet Callies crankshaft available through Wagler Competition Products is machined from triple heat treated 4330V steel and features reduced rod journal widths for improved strength (which calls for narrower rods).

Why does my Chevy Duramax not turn over?

Engine won’t turn over with key at all. Batteries are hot. You can take a power probe and shoot 12v to starter solenoid wire and it will crank and run fine. I traced that wire back to the fuse panel under the hood on the driver’s side. There is a CRANK fuse as well as a starter relay in that panel.

How often does a Duramax diesel engine leak?

Fluid leaks are important to catch early as running low on fluid can cause catastrophic damage to the transmission. If you are leaking you will notice red fluid dripping from underneath the engine bay. This issue is extremely common and can occur as frequently as every 20,000-30,000 miles.

What happens if the crankshaft on a Duramax goes bad?

Perhaps the most devastating of all Duramax failures is a broken factory crankshaft. 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.

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.

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.

What makes a Duramax LB7 diesel so special?

The introduction of common rail injection powered by the Bosch CP3 injection pump made the LB7 Duramax stand apart from other diesels of the day with excellent power and efficiency.

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.

Are there any issues with the Duramax primer button?

Under the primer button there are some orings that fail on a regular basis. This can produce long cranks and hard starts. Glow Plug System Issues – Nearly half of the check engine lights that come in for the Duramax pickups are for glow plugs.

How to repair a LB7 6.6 Duramax engine?

We carry a full line of repair and performance parts for these engines that we install in our shop on a regular basis. Odds are we have run across your problem before and would be glad to help. Call us at 1-877-367-9351.

What should the temperature be on a Duramax LB7?

I’ve got a new to me LB7 and I think that the temperature is a little low. On all of my other vehicles (mostly GM), operating temp is 210, however I cant get the Duramax above 170 (according to the gauge it is 180). I took the reading via my OBDII reader, it is 170-172F.

What should the temperature be in a GMC Duramax 04?

My 04 runs this cool also. In town it is 160-170 all the time. If I drive it a little bit harder than normal it will warm up or if I get on the highway at 65-70 it will warm up. Not sure what the low side thermostat is but I would bet its a 165-170 since this is where they like to run.

How long does it take for a Chevy Duramax to warm up?

Mine now takes about 5 miles at highway speeds to come up to full temp. It still won’t warm up a whole lot just idling, but it is much better with the new thermostats and will now put out heat. I got my thermostats at the local parts store in a kit that had both thermostats and the rubber gaskets. Merchant also has them.

What to do about a Duramax 6.6 LB7 engine?

If you are having a problem with your 2001-2004 Duramax 6.6 LB7 diesel engine, please feel free to give us a call. We carry a full line of repair and performance parts for these engines that we install in our shop on a regular basis. Odds are we have run across your problem before and would be glad to help. Call us at 1-877-367-9351.

Which is the best 6.6 Duramax engine to buy?

Just like the LBZ was the best pre-emissions 6.6 Duramax engine, the L5P is the best post-emissions Duramax. All the problems associated with emissions system and injection pump have been taken care of, and for 2017 GM switched suppliers of the injection pump from Bosch to Denso.

What kind of transmission does a Duramax pickup have?

Nearly all Duramax powered pickup trucks were equipped with the Allison 1000 automatic transmission, with the five-speed version running from 2001 to 2005, and the six-speed starting in 2006 and running until 2019.

Why is my Duramax diesel engine not working?

The trucks computer keeps track of how much fuel needs to be added or subtracted from each individual cylinder to make the engine run smoothly, and this value is called the balance rate. If one cylinder is contributing too much or not as much as the rest, the cause is usually a bad injector and the cure is a replacement.

What was the code name for the Duramax in 2011?

In an effort to keep up with the ever-tightening emission regulations, GM redesigned its Duramax for the 2011 model year, and this time the code name was LML.

How many miles can you expect out of a Duramax?

Mine ran PERFECT when I sold it with over 130k on it. It used a little oil, maybe a quart every oil change which was about 8000-9000 miles. Id stay in the 140-160k range, there going from 12-16k. If its clean and has records, then go for it! 5th wheel or gooseneck on it?

When do I need to repair my 2003 Duramax?

For 2003 vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after October 10, 2006 are covered by this special policy and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to October 10, 2006 must be submitted to the Service Contract provider.

How big is a 2012 GMC Sierra 2500HD?

Properly equipped, a 2012 GMC Sierra 2500HD can haul up to 3,704 pounds of payload and tow up to 13,000 pounds with its standard ball hitch, and 17,800 pounds with a fifth-wheel connection.

What’s the top speed of a GMC Sierra 2500HD?

In Edmunds performance testing, a Sierra 2500HD with this engine accelerated from zero to 60 mph in a truly extraordinary 7 seconds, which is 2 seconds quicker than the Ram 2500HD. The Duramax is a clean diesel, thanks in part to a urea-injection system. If the diesel exhaust fluid (DEF) runs low, however, top speed will be limited to 55 mph.

Why does my GMC 2500 6.6L Duramax stop running?

My GMC 2500 6.6L Duramax… My GMC 2500 6.6L Duramax Diesel stopped running and will not start. Turns over but sounds like it gets no fuel. Has happened in past and dealer fixed short in wire. That time it would blow fuse but not this time.

Are there any problems with the Commons 6.6L Duramax Diesel?

Common Problems with the 6.6L Duramax Diesel. The 6.6L Duramax has been in production since 2001 and has proved, on a large scale, to be a relatively reliable and durable platform. While various versions of the engine have surfaced over the years, all generations of the Duramax are based on the same foundation.

Properly equipped, a 2012 GMC Sierra 2500HD can haul up to 3,704 pounds of payload and tow up to 13,000 pounds with its standard ball hitch, and 17,800 pounds with a fifth-wheel connection.

Are there any problems with the LB7 Duramax?

It is extremely important to have the heads surfaced flat before putting the truck back together. Water Pumps – Another issue with the LB7 Duramax is the water pump leaking. This one is fairly common and unfortunately a huge pain in the butt to change. Water will seep from the underside of the pump.

What happens to the head gasket on a Duramax?

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. When they have issues, they do not typically smoke out the exhaust or get coolant into the cylinders. What happens is the head lifts a little during the compression stroke.

Where was the last serviced GMC Sierra 2500HD?

Last serviced at 182,922 miles in Sheboygan, WI on 11/24/20 • Vehicle serviced • Tire condition and pressure checked • Tires rotated. No accident or damage reported to CARFAX. Number of owners unknown. Last serviced at 319,709 miles in Kennewick, WA on 04/26/21 • Vehicle serviced.

How many miles does a GMC Sierra 2500HD have?

Mileage: 140,638 miles Body Type: Pickup Color: White Engine: 8 Cyl 6.6 L Accident reported. 1st owner purchased on 11/30/05 and owned in AB until 05/05/17 • 2nd owner purchased on 06/26/17 and owned in WA until 08/16/19 • 3rd owner purchased on 09/25/19 and owned in WA until .

Can a Silverado Sierra GMC start then dies?

I’ve got another 99 6.0L that i’ve swapped the MAF, MAP, Idle Air, Throttle Position sensor, both computers, all relays, nothing changes the behavior. I’ve checked all the fuses i can find that would be releated to engine function, on both fues panels.

Why is the cruise control not working on my Chevy Silverado?

Open the fuse boxes and read the cover for fuse locations associated with cruise control. Fuses break due to age, but a blown fuse may also indicate a short in the wiring. Figure 1. A good fuse (on the left) compared to blown fuses (on the right).

Is the water pump on the LB7 Duramax leaking?

Water Pumps – Another issue with the LB7 Duramax is the water pump leaking. This one is fairly common and unfortunately a huge pain in the butt to change. Water will seep from the underside of the pump. Be prepared though because you will have to remove the dampner pulley to get the pump off.

What to do if your Cruise Control is not working?

A diagram of the stoplamp switch. This switch can be found on the steering wheel, although some switches can be found on the dashboard. If only one setting on your cruise control does not work, chances are high that the switch is the problem. Test the switch the same way the brake switch is tested.

How much power does a Duramax Diesel have?

Power was at an all-time high coming in at 397hp and 765 pounds of torque, and in order to provide this much power while still keeping pollutants low, GM needed to be able to increase the pressure in the fuel system to levels above what the tried-and-true CP3 could safely deliver.

What are the issues with the Duramax glow plugs?

Not only does the threaded metal part of the glow plug seize in the head, but the tips of the glow plugs sometimes bulb making it really difficult to get them out. Also the metal strips that connect the glow plugs together on each side corrode and break causing issues. Lastly we replace a fair amount of glow plug controllers as well.

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