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7 Signs You Need a Diesel Truck Mechanic Glendale

Truck owners who are not familiar with diesel engines can face many problems. You need to be familiar with the signs that your truck is experiencing difficulty, which means you need to visit your diesel truck mechanic Glendale

We share some of the common symptoms that indicate that you have diesel engine problems. Take note that diesel engines are different, and there is no “one size fits all” fix that you can do for your diesel engine. 

When You Notice These Symptoms Go To Your Diesel Truck Mechanic Glendale


One of the top issues among diesel truck owners is engine overheating. This happens when the engine is pushed too hard and can result in many problems like damage to the crankshaft and bearings, expanding pistons, crushed head gasket, and distorted cylinder heads.

There are times when you need the extra power your diesel engine can provide, but don’t go over the limit because you are shortening your engine’s lifespan in the process. Visit your diesel engine technician for a diagnosis of your overheating issue.

Low Fuel Efficiency

Diesel engines are famous for their fuel efficiency compared to petrol engines. If you notice that you are making more trips to the gas station than usual, it may indicate that you have worn or damaged fuel injectors.

Take your truck to the auto shop to have it checked, what’s the use of having a diesel engine that gives the fuel economy of a gasoline-powered vehicle? Expert technicians can diagnose and repair whatever your problem is so you can start enjoying the fuel efficiency that you had before.

Black or Blue Exhaust Smoke

If you notice a change in your exhaust color, it means that you are burning oil. Diesel trucks are known to emit more smoke than gas counterparts, but too much black smoke coming out could be due to an imbalance in the fuel-to-air ratio. You are using too much fuel and not enough air. Usual culprits are a faulty injector, air filter, injector pump, or turbocharger.

A trip to the auto shop can help you pinpoint the problem. Fixing the issue can save you money on major repairs down the road.

Oxidized Oil

If you went on a trip and left your diesel truck idle in your garage for an extended period, you may encounter oil oxidation problems. Air may get into the oil and creates bubbles, which can result in poor lubrication. This may damage your engine if you stick with using oxidized oil. The best way to prevent this is to change your oil once you get back from your trip. This should be done every time your truck remains in storage in-between seasons or is used infrequently.


Diesel engines can be noisier than petrol engines, but if you hear a knocking sound in your engine, it can signify a serious problem. Truck owners are familiar with the sound of their engines, but when it starts making a different sound, you should start to worry. Your fuel injectors may be compromised, which affects compression ratios and lower performance. There can also be issues with main bearings, piston skirts, or lining seals, which may cause the knocking sound.

Regular diesel engines have a compression ratio of 20:1 while a gas-powered engine is at 8:1. The higher compression ratio in diesel gives it more power and efficiency. The problem with high compression ratios is it can result to fuel injection problems.

You should not hesitate to bring your truck to the auto shop for inspection. Your engine may be on the verge of dying without you knowing it. 

Power Loss

Diesel trucks are famous for their power and torque. If you notice a lack of power with your truck, it can be due to dirty fuel filters, damaged fuel injectors, or loose throttle linkage. If your truck doesn’t accelerate as it used to, you should bring it to your auto shop for inspection. 

Contaminated Fuel

Diesel is thicker than gasoline, which makes it easier to get contaminated. Common fuel contaminants include water, soot, dilution, and glycol. If any of these penetrate your fuel system, it can cause major problems with your engine.

Diesel Truck Mechanic Glendale

Dave’s Car Care: Your Diesel Truck Mechanic Glendale

Arizona weather can be harsh to your diesel truck, but we can help you survive it.

If you are looking for the top diesel truck mechanic Glendale, you don’t need to ask Siri or Google any longer. You can enjoy your road trips all year long by visiting Dave’s Car Care. 

Dave’s Car Care mechanics are diesel specialists with years of experience in the maintenance and repair of diesel systems. We can help you pinpoint the problem before recommending the best solution for you.

Here are the top reasons for choosing us as your Auto Repair Services Provider in Glendale, AZ:

  • Our expert mechanics have more than 40 years of experience in providing professional and reliable car repair services for all makes and car models in Peoria, AZ.
  • Our auto shop has been reviewed by top auto organizations like the AAA and NAPA
  • Our trusted auto shop has received AAA Top Shop Honors for 2013, 2014, 2015, and 2016.
  • We are ASE certified
  • Our auto maintenance shop has an A+ rating from the BBB(Better Business Bureau)
  • We have an International Torch Award for Ethics from the BBB
  • We are a preferred auto repair mechanic of Bumper to Bumper Radio
  • We offer complete vehicle service and repair
  • We use OEM parts and the highest quality lubricants
  • We check for problems all across your car’s interior and exterior 

Arizona truck owners face various repair issues due to the extreme weather conditions in the state. This is why you need to take care of your diesel truck by having regular maintenance procedures. Our mission is to be the best diesel truck mechanic in Glendale, AZ, call us, or send us a message on our website for an appointment.

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