Understanding Engine Auto Service: What You Need to Know

PROFIX Auto Repair • February 28, 2026

At PROFIX Auto Repair in Norman, OK, we often emphasize the importance of regular engine auto service to our clients. Understanding and maintaining this pivotal component of your vehicle not only extends the life of your car but also ensures it runs smoothly and efficiently. In this post, we're diving deep into what engine auto service entails, why it's crucial, and how you can stay proactive with your vehicle's maintenance.

What is Engine Auto Service?

Engine auto service encompasses a range of maintenance practices that are designed to keep your engine running at its best. This includes checking and replacing engine oil, inspecting belts and hoses, replacing spark plugs, and ensuring all components are functioning correctly.

One of the most common aspects of engine maintenance is a routine oil change. Oil lubricates the engine's moving parts, reducing friction and preventing wear. Regular oil changes help maintain optimal performance and protect your engine from damage.

Why Regular Engine Service Matters

For many of us, our car is essential to daily life, from commuting to work to running errands. Keeping the engine in good condition is vital to avoid unexpected breakdowns and expensive repairs. Regular engine service at PROFIX Auto Repair in Norman, OK helps catch minor issues before they escalate.

Another critical aspect of engine maintenance is the role it plays in fuel efficiency. A well-maintained engine consumes fuel more efficiently, saving you money at the gas pump and reducing your environmental footprint.

Common Engine Issues and Solutions

We frequently encounter several engine-related issues that could be minimized or avoided with proper care. These include:

1. Overheating

Overheating can be caused by several factors, such as a failing thermostat, low coolant levels, or a faulty radiator. Ensuring the cooling system is inspected regularly can prevent this issue.

2. Misfiring

Engine misfires can lead to a loss of power and efficiency. They're often due to worn-out spark plugs or ignition coils. Replacing these components during routine service checks at PROFIX Auto Repair can keep your engine running smoothly.

3. Check Engine Light

While not a component failure itself, the check engine light is your vehicle's way of alerting you to underlying issues. At PROFIX Auto Repair, we use diagnostics tools to accurately identify and address the root causes promptly.

Proactive Tips for Engine Maintenance

Here are some tips we recommend for keeping your engine in top form:

Follow the maintenance schedule outlined in your vehicle's manual.
Regularly check fluid levels and top them off if necessary.
Listen for unusual noises, which can indicate a problem.
Don't ignore warning lights or unusual smells coming from the engine.

By incorporating these practices into your routine, you can minimize the risk of major engine failures.

Why Choose PROFIX Auto Repair?

Located in the heart of Norman, OK, PROFIX Auto Repair is committed to providing exceptional engine auto services. Our team of certified professionals brings unparalleled expertise and customer service, ensuring your vehicle receives the care it deserves.

We use the latest diagnostic technology to assess your car's performance and offer honest advice to keep your engine running efficiently. Whether you're looking for a routine check-up or need a specific engine issue addressed, we are here to help.

At PROFIX Auto Repair, we're more than just an auto shop; we're a part of the Norman community. We're dedicated to building long-term relationships with our clients founded on trust, expertise, and superior service. If you're in Norman, OK, and need expert engine auto service, we invite you to schedule an appointment with us today. Let us help you keep your car in optimal condition for the road ahead!

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Tesla Large Drive Unit LDU Coolant Delete

By Philip Defatta • February 11, 2026

The rear drive unit in older Teslas model X and S have a costly design problem. Many Tesla Model S and Model X vehicles made from 2012 to 2020 have the Large Drive Unit (LDU), which has a guaranteed leaking rotor coolant seal. This seal, located around the electric motor rotor shaft, will fail and allow coolant to seep into the motor. Over time, every one of these will leak. Tesla tried various fixes to prevent this, then introduced ‘Revision U’ of the LDU in late 2022. This versionor reroutes coolant away from the rotor while continuing to cooling the inverter, stator, and gearbox through the flyover tube. This is a good and permanent fix. This issue impacts ALL rear-wheel-drive models (including non-performance RWD ones) and all Performance (P-series) dual-motor variants. The non-performance dual-motor models use a different rear unit without this flaw. While Performance and non-performance LDUs differ in their inverters, they share the same leaky seal. Only the NON-PERFORMANCE DUAL-MOTOR vehicles have the ‘small drive unit’ that’s immune to this. Newer Model 3/Y and the latest S/X do not leak coolant into the stator. If you own an impacted vehicle, make it a habit to inspect the encoder (or speed) sensor for signs of blue coolant buildup. It’s a straightforward inspection. If yours is leaking, act quickly to get it fixed before the motor floods and the car becomes undrivable. We perform this inspection for $49. Pre Revision U LDU’s can be modified to have the Revision U fix. This is known as the coolant delete. In fact it does not eliminate cooling for the whole Large Drive Unit, it only by passes the rotor cooling. Contact Philip at PROFIX Auto Repair for details and pricing. Don’t delay getting your LDU checked for $49.

Unlocking the Secrets of Your Vehicle's Electrical System: Expert Tips from PROFIX Auto Repair

By PROFIX Auto Repair • January 31, 2026

Discover expert auto electrical services at PROFIX Auto Repair in Norman, OK. Trust our skilled team for reliable solutions. Schedule an online appointment now.

Navigating the Road to Reliable Auto Repair and Maintenance Service in Norman, OK

By PROFIX Auto Repair • January 29, 2026

Discover top-notch auto repair and maintenance at PROFIX Auto Repair in Norman, OK. Trust our expertise—schedule an online appointment today!

Tesla Pre-Purchase Inspections in Norman, OK | PROFIX Auto Repair

January 22, 2026

If you’re shopping for a used Tesla in Norman, Oklahoma, a professional pre-purchase inspection is one of the smartest steps you can take before buying. At PROFIX Auto Repair, we provide thorough Tesla pre-buy inspections to help drivers avoid unexpected repairs and make confident decisions. Electric vehicles like Tesla require a different approach than traditional gas-powered cars. Our experienced technicians understand Tesla-specific systems and know exactly what to look for during a pre-purchase inspection. We carefully evaluate: -Suspension, steering, and braking systems -Tire condition and uneven wear patterns -Underbody and structural components -Thermal Cooling/Heating systems and high-voltage safety checks -Warning messages, fault indicators, and electronic issues -Signs of prior collision damage or improper repairs Many problems with used Teslas aren’t obvious during a quick test drive. Our inspection helps uncover hidden issues that could lead to costly repairs down the road, especially important when buying from a private seller or out-of-area dealer. Located right here in Norman, OK, PROFIX Auto Repair proudly serves Tesla owners throughout Cleveland County and the surrounding area. Whether you’re purchasing a Model 3, Model Y, Model S, Model X, or Cyber Truck our goal is to give you clear, honest information before you buy. Before you commit to a used Tesla, schedule a Tesla pre-purchase inspection at PROFIX Auto Repair in Norman, Oklahoma—and buy with confidence.

Tesla Tire Wear - Tesla Alignment

By Philip Defatta • January 16, 2026

Tesla Alignments: Protecting Your Tires from Uneven Wear at PROFIX Auto RepairTesla owners love the performance, but many notice tires wearing out faster than expected—especially uneven wear on the inner edges of the rear tires. This is common on Model 3, Model Y (including the newer 2026 Juniper models), Model S, and Model X. Common causes include: Heavy battery pack adding significant weight & Instant electric torque stressing tires during acceleration and regen braking. Factory alignment specs (often aggressive negative rear camber for better handling and stability) that accelerate inner-edge wear—even when "within spec." Everyday factors like potholes, curbs, or mileage causing slight drifts in toe, camber, or caster. The result? Premature bald spots on the inside, reduced tread life, noisier rides, lower efficiency, and safety concerns. A professional four-wheel alignment makes a big difference. At PROFIX Auto Repair, we use state-of-the-art equipment to check and adjust your Tesla to optimized specs—balancing performance, handling, and longer tire life. Many customers see dramatically reduced wear and better range after our service. Watch for these signs your Tesla needs attention: Uneven or rapid tire wear (especially inner rear edges) -Pulling to one side -Off-center steering wheel -Vibrations or unusual tire noise Don't let misalignment chew through another expensive set of tires. Schedule your Tesla alignment today at PROFIX Auto Repair—we're EV-friendly and ready to keep you safe on the road! Call us at 405-310-2279 or Click Here to book. Your Tesla deserves expert care. PROFIX Auto Repair – Trusted Service for Teslas & All Vehicles.

Common Car Problems in Cold Weather: What to Watch For This Winter

By Philip Defatta • December 15, 2025

As the temperatures drop and winter sets in, many drivers start experiencing frustrating car issues that seem to appear out of nowhere. At PROFIX Auto Repair, we've seen a surge in these cold-weather-related problems every year. The good news? Most of them are preventable with a little preparation and maintenance. In this post, we'll cover the most common issues our customers bring to us during the winter months and share tips on how to avoid them. 1. Dead or Weak Battery - Cold weather is the number one enemy of car batteries. Low temperatures can reduce a battery's power by up to 50-60%, making it struggle to start your engine—especially if it's already a few years old. Tip: Get your battery tested for free at PROFIX—we can tell you if it's time for a replacement before you're stranded. 2. Low Tire Pressure - For every 10°F drop in temperature, your tires can lose about 1 PSI of air pressure. Under inflated tires reduce traction, fuel efficiency, and increase the risk of blowouts on icy roads. Tip: Check your tire pressure monthly (including the spare!) and inflate to the manufacturer's recommended levels. 3. Thickened Engine Oil - In extreme cold, conventional oil can thicken, making it harder for your engine to turn over and potentially causing unnecessary wear during startup.firestonecompleteautocare.com Tip: Switch to a lower-viscosity synthetic oil rated for winter conditions. An oil change at PROFIX can make a big difference. 4. Frozen Door Locks and HandlesMoisture gets into locks and seals, then freezes solid, leaving you locked out of your own car. Tip: Apply a silicone-based lubricant to locks and rubber seals to prevent freezing. 5. Wiper Blade Issues - Wiper blades can freeze to the windshield, become brittle, or get damaged by ice buildup, streaking or failing when you need clear visibility the most. Tip: Replace old blades with winter-specific ones and lift them off the glass when parking in snow. 6. Reduced Traction and Getting Stuck - Snow and ice turn roads into skating rinks, leading to skids or wheels spinning without forward progress. Tip: Consider winter tires for better grip, and keep a traction aid like kitty litter in your trunk.Don't Wait Until It's Too Late!Many of these issues can be caught early with a simple winter maintenance check. At PROFIX Auto Repair, our experienced technicians are here to help keep your vehicle running smoothly all season long. Schedule your winter prep appointment today—call us or book online. Stay safe and warm out there! PROFIX Auto Repair – Your Trusted Local Experts for All Seasons

Snow Day Norman??

By Philip Defatta • December 4, 2025

Well, Norman, Oklahoma decided to sprinkle a little Christmas magic on us in December, and by “sprinkle” we mean actual snowflakes the size of tortillas! While the kids are building wonky snowmen and half the town is attempting donuts in the Dollar General parking lot, we’re over here thinking about your poor car shivering outside.Here’s the quick, fun PROFIX Snow-Day Survival Guide:Slow Your Roll, Cowboy – Black ice doesn’t care how tough your truck looks. Ease off the gas, increase following distance, and pretend you’re driving Miss Daisy. Brakes Aren’t Suggestions – Pump those brakes gently like you’re flirting, not stomping like you just saw your ex at Target. Wipers Up, Problems Down – Before the snow hits next time, flip your wipers up. No more doing the ice-chip shimmy at 6 a.m. with a cereal bowl in one hand. Battery Hates the Cold More Than Your Mother-in-Law Hates Your Cooking – Cold weather can sap 50% of your battery’s cranking power. If your car’s been starting slower than a Monday morning, swing by PROFIX. We’ll test it faster than you can say “hot cocoa.” Tires Matter, Bro – If your tread looks slicker than the roads, it’s time for new shoes. All-seasons are cute until they’re ice-skating. Bonus laugh: Yes, someone already brought us a car this morning because “the traction control light looks like a sad face.” It’s okay, we speak fluent car emotions.Stay warm, stay safe, and if your car starts making noises that sound like it’s auditioning for a polar bear documentary, you know where to find us—we’re the warm shop with the coffee that doesn’t taste like regret.Drive slow, Norman. We love you (and your car) too much to see either of you in a ditch.— The PROFIX Crew

Work-Life Balance at PROFIX Auto Repair: Supporting Our Team, Strengthening Our Service

By Philip Defatta • October 24, 2025

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Mastering the Elements: Heating & Air Conditioner Repair in Norman, OK

By PROFIX Auto Repair • October 21, 2025

Expert heating & A/C repair at PROFIX Auto Repair in Norman, OK. Trust our team for prompt, reliable service. Schedule an online appointment now.

Angel Flight - Follow us live

By Philip Defatta • September 26, 2025

At PROFIX Auto Repair, we're not just fixing rides on the ground—we're powering missions in the air! As a proud volunteer pilot, I team up with Angel Flight, a nonprofit network of dedicated aviators who provide free flights to patients and families facing serious medical challenges. When commercial travel isn't an option due to distance, finances, or special needs, we step in to bridge the gap—flying them to life-saving treatments, consultations, and compassionate care across the country. Every takeoff is a testament to giving back and making a real difference! Want to see our Angel Flights in action? Track us live on FlightAware—the ultimate flight-tracking app and website. FlightAware will show the last flights and scheduled flights. When we are airborne, it will track us live. Follow along from takeoff to touchdown and cheer us on as we soar for those in need. Stay tuned for announcements about our next mission. Have a story of hope or want to support Angel Flight? Drop a comment below—we'd love to hear from you. Together, we're lifting more than just planes. #PROFIXAutoRepair #AngelFlight #VolunteerPilots #FlightAware #GiveBack #AviationForGood