Common Vehicle FAQs
Common Questions Answered by American Five Star owner and founder, Eric Ali
- AC Services
- All Auto Services
- Brakes
- Cooling System
- CVT Transmission
- Engine
- Regular Maintenance
- Suspension
- Transmission
- Transmission Diagnostics
- Transmission Fluid
- Transmission Rebuild
- Transmission Replacement
Many popular cars and SUVs use continuously variable transmissions (CVTs). Some examples include:
- Nissan: Altima, Sentra, Rogue, and Versa
- Subaru: Outback, Forester, Impreza, Crosstrek, and Legacy
- Honda: Civic, CR-V, and HR-V
- Toyota: Corolla and previous-generation C-HR
- Mitsubishi: Outlander and previous-generation Mirage
Not every model or trim comes with a CVT. The transmission type can vary by model year and engine. Not sure which transmission your vehicle has? Call at 480-966-8181, and our team can help you check.
Yes. You can generally use an independent repair shop without losing your factory warranty. Follow your vehicle manufacturer’s maintenance schedule, use the correct fluids and parts, and keep records of all services.
However, warranty coverage may not apply to damage caused by improper repairs. Check your warranty terms or contact your manufacturer if you have questions.
Not every CVT problem requires a new transmission. The right solution depends on the type of damage, the availability of parts, and your vehicle’s condition. A fluid service or minor repair may be enough for some problems, while severe internal damage may require a rebuild or replacement.
If your vehicle may still have factory CVT warranty coverage, check with the dealer before approving repairs. At American Five Star Auto Repair & Transmission, we inspect your CVT, explain our findings, and help you understand the available repair options.
We first find the real problem and then give you a clear estimate in writing. If the repair cost is high, you do not have to pay it all at once.
You can pay over time with American First Finance, with approvals from $300 to $5,000, or with Car Care One (Synchrony). All credit types are welcome. Call 480-966-8181 to book your inspection.
Often it can be repaired. Fluid, leak, cooler, sensor, solenoid, software, valve body, and torque converter faults can be repaired when the belt, pulleys, and fluid are clean. When the belt or pulleys are damaged and metal debris is in the fluid, the CVT is usually replaced.
A drain and fill replaces the fluid in the pan, about 40% to 50% of the total. A fluid exchange or flush uses a machine to replace almost all of it. The best choice depends on your vehicle and its history.
Only if the cause is the fluid itself, such as a low level or badly degraded fluid. Slipping and hard shifting can also come from worn clutch material, a solenoid, the valve body, the torque converter, a sensor, or an electronic control fault, and new fluid cannot repair any of those. If your vehicle has symptoms, we diagnose it first.
Dark red or light brown fluid means the service is due or coming due. Dark brown fluid with a burnt smell means the fluid is heat-damaged, so book a service soon and ask for the cause of the heat to be checked.
Very dark or black fluid with a strong burnt smell means the transmission should be inspected promptly, because a fluid change alone may not be the right answer.
It depends mainly on the specified fluid for your transmission and how much of it your service uses, then on the method, the filter and gasket where they apply, and the labor to reach the transmission. We identify your exact transmission first and give you the price in writing before the work begins.
Old fluid stops cooling and protecting well. Parts wear faster, shifts get rough, and the transmission can overheat. Over time, this can lead to slipping, failure, and a repair bill in the thousands. Fluid service costs far less than a rebuild or replacement.
Your transmission and its fluid specification are identified first. The fluid level, color, and smell are checked, and the transmission is looked over for leaks. The old fluid is removed using the correct procedure for your transmission.
Where the pan comes off, the pan and magnet are inspected, and the filter is replaced where it is serviceable. The transmission is refilled with the specified fluid, the level is set by procedure, and the vehicle is leak-checked and road-tested.
Different transmissions require different types of fluid. Each fluid is made to meet specific viscosity, lubrication, and performance requirements. Using the wrong fluid can affect shifting, increase wear, and damage internal transmission parts. Always use the fluid specification recommended by your vehicle manufacturer.
| Vehicle Maker | Column 2 |
|---|---|
| General Motors (GM) | Dexron VI (for specified models) |
| Ford | Mercon LV or Mercon ULV (depending on the transmission) |
| Chrysler, Dodge, Jeep, Ram | ATF+4 (for specified models) |
| Toyota and Lexus | Toyota ATF WS (for specified automatic transmissions) |
| Honda and Acura | DW-1 (automatic) or HCF-2 (specified CVTs) |
| Nissan | Nissan Matic fluids or NS-3 (specified CVTs) |
| Subaru | Manufacturer-specified Subaru CVT fluid |
| Dual-clutch and European vehicles | Transmission-specific fluid specifications |
A fluid change, or pan service, drains the fluid in the pan, roughly 40 to 60 percent of the total, and it is the only method that lets the pan, magnet, and filter be inspected.
A fluid exchange, which many shops call a flush, replaces nearly all of the fluid, including the fluid in the torque converter and cooler, but inspects nothing by itself.
It is a charge added to the price of a replacement unit. Your old transmission is the core, and the charge is credited when it is returned to the supplier in rebuildable condition. A cracked case can reduce the credit. We note it on your estimate and handle the return.
Arizona’s summer heat can put extra stress on your transmission. Temperatures often exceed 110°F in the Valley, and degraded fluid may not cool and protect internal parts effectively.
Driving conditions can add to this stress:
- Stop-and-go traffic: Frequent shifting near ASU, Apache Boulevard, and major freeways.
- Short trips: Repeated short drives may affect normal operating conditions.
- Towing and hauling: Heavy loads put extra demands on transmissions.
- Long commutes: Regular drives between Tempe, Mesa, Chandler, and Scottsdale add miles and wear.
At American Five Star Auto Repair & Transmission, we consider Arizona’s heat and your driving habits when diagnosing transmission problems.
A transmission replacement may take about 2 to 5 business days, depending on your vehicle and the work required. Some jobs take less time, while parts delays or additional repairs can extend the process.
The timeline depends on:
- Parts availability: How soon the replacement transmission arrives.
- Vehicle type: Some vehicles take longer to service.
- Additional repairs: Other problems may need attention.
- Programming needs: Some vehicles require computer setup after installation.
Contact American Five Star Auto Repair & Transmission in Tempe, AZ, for an estimated timeline based on your vehicle and its needs.
Watch for slipping, delayed shifting, harsh shifts, grinding or whining noises, leaking fluid, a burning smell, or a warning light. These signs can also come from smaller problems, so get a diagnosis before you decide on a big repair.
The right option depends on your transmission’s condition, the cause of the problem, and the total cost. A minor issue, such as a fluid leak or faulty sensor, may need only a repair. Worn internal parts may require rebuilding, while severe damage may make replacement the better option.
At American Five Star Auto Repair & Transmission in Tempe, AZ, our technicians inspect the problem before recommending a solution. We help you compare the available options and costs so you can make an informed decision.
Explain that driving with slipping gears, delayed engagement, fluid leaks, or unusual noises can make the problem worse. If the vehicle struggles to move or cannot shift safely, arrange an inspection or towing instead of continuing to drive.
- Service a conventional automatic transmission about every 30,000 miles
- Service a CVT about every 25,000 miles
- Use only the fluid your manufacturer requires
- Fix leaks right away
- Do not ignore warning lights or slipping
As owner Eric Ali says: “An ounce of prevention is worth a pound of cure.”
A transmission rebuild may be worth it if your car is in good condition and you plan to keep it for several years. It can be a practical alternative to replacing your vehicle.
However, rebuilding may not be the best choice if a smaller repair can fix the problem, the transmission is severely damaged, or the repair cost is too high compared with your car’s value.
At American Five Star Auto Repair & Transmission in Tempe, AZ, we diagnose the problem and explain your repair options so you can make an informed decision before approving major work.
A transmission rebuild can take several business days, depending on your vehicle, the damage found during inspection, and parts availability. Hard-to-find parts or additional repairs may extend the timeline.
We explain the expected turnaround time with your estimate. If we discover additional problems during the rebuild, we discuss the findings and any cost changes with you before proceeding.
Often, yes. A rebuild uses your own transmission and replaces only what is worn. A new transmission usually costs more. A remanufactured unit can cost more or less, depending on the car. We show you each option and its price so you can choose.
Often yes, if the rest of the car is in good shape and you plan to keep it. If a rebuild is not a smart choice for your car, we will say so.
Tempe summers often go above 110°F. Heat is the biggest enemy of a transmission. It makes the fluid break down faster. Old fluid cannot cool, clean, or protect the parts well. Stop-and-go traffic on US-60, I-10, Loop 101, and Loop 202, short trips around ASU and Mill Avenue, towing, and heavy loads add more stress. Arizona drivers should treat their cars as severe-duty vehicles and keep up with fluid service.
It is best not to. Slipping makes extra heat and wear. A small repair can turn into a big one. Drive as little as you can and bring your car in for a check.
Yes. A sensor, wiring problem, solenoid, low voltage, heat problem, or engine fault can turn on the light. Trouble codes are clues, not a full answer. A proper check can include a road test, computer scan, fluid check, electrical tests, and live data review.
- Go easy at first. Avoid hard acceleration, towing, and heavy loads for the first few days. Ask us for break-in tips for your vehicle.
- Check for leaks and low fluid.
- Service the fluid on time. We usually suggest every 30,000 miles for regular automatics and every 25,000 miles for CVTs. We also follow your maker’s rules and look at how you drive.
- Use the right fluid. The wrong fluid can harm seals and clutches.
- Do not ignore warning lights.
- Keep it cool. A healthy cooling system helps in Arizona summers.
- Keep your invoice and warranty papers.
A rebuilt transmission is your own transmission, repaired with new parts. A remanufactured transmission is rebuilt in a factory-style process to set standards and then installed in your car. Both can work well. We explain which one fits your car and your budget.
We recommend servicing a conventional automatic transmission every 30,000 miles and a CVT every 25,000 miles. We also consider your vehicle manufacturer’s requirements, your driving conditions, and your service history. In Tempe, frequent stop-and-go traffic, towing, and summer heat are hard on fluid, so early service is low-cost protection for an expensive part.
You get the findings in writing, with one of four outcomes: a fluid service only, a targeted repair of the one failed part (like a solenoid, sensor, or seal), a transmission rebuild, or a replacement. The codes, live data, fluid condition, and road test notes decide which outcome fits. You see the estimate first, and we start work only after you approve it.
Driving with a slipping transmission can make the problem worse and may create a safety risk if the vehicle loses power or fails to respond as expected. Avoid unnecessary driving and arrange an inspection. If the vehicle slips severely, cannot move reliably, or shows signs of overheating, stop when safe and arrange professional assistance.
Some problems can be identified with an initial inspection and scan, while others require more time and additional testing. The time needed depends on the symptoms, vehicle design, and whether the problem can be reproduced during testing. The shop can provide a more useful estimate after learning about your vehicle’s issue.
Yes. Many transmission faults turn on the check engine light because the transmission control module reports its faults through it. The light can also come from engine or emissions problems, and some of those problems can cause poor shifting. A full diagnostic scan of both the engine computer and the transmission module is the way to find out which system is responsible.
It is best not to. If the car slips, smells like it is burning, or will not move normally, stop driving and call us at 480-966-8181. Driving more can add heat and damage.
Limp mode is also called reduced-power or fail-safe mode. The car limits power or gears to protect the transmission. You may feel the car stuck in one gear or slow to speed up. Limp mode is a warning. Get the car checked soon.
Here at American Five Star Auto Repair & Transmission in Tempe, we generally recommend servicing conventional automatic transmissions every 30,000 miles and continuously variable transmissions (CVTs) every 25,000 miles. We consider your vehicle’s manufacturer requirements, driving conditions, and service history when making that recommendation.
Here in Arizona, heat puts extra demand on your transmission and can accelerate fluid breakdown. Fresh, correctly specified fluid helps lubricate internal components, control heat, and support smooth operation. Using the proper fluid is also essential for compatibility with your transmission’s internal seals.
Regular service is an investment in your vehicle’s future. As you work toward 120,000–140,000 miles and beyond, consistent maintenance can help reduce wear and the risk of expensive repairs.
As I like to say, “An ounce of prevention is worth a pound of cure.”
Pulling and off-center steering often suggest alignment; vibration at certain speeds commonly points to balance or tire/wheel problems; looseness, noise, and unstable handling can indicate suspension wear. Inspection and measurements provide the answer.
Incorrect pressure, alignment, worn shocks or struts, loose suspension parts, lack of rotation, imbalance, overloading, or driving conditions can wear tires unevenly. Correcting the underlying cause protects the replacement tires.
Excessive bouncing, nose-diving, body roll, uneven tire wear, instability, leaking units, or longer stopping behavior may indicate wear. Shocks and struts should be evaluated with the tires and suspension, not judged by mileage alone.
Uneven tire pressure or wear, alignment, a dragging brake, suspension damage, or road crown can cause pulling. A complete inspection determines whether the correction belongs in the tires, brakes, steering, suspension, or alignment.
Wheel balance, tire damage or wear, bent wheels, loose steering or suspension parts, alignment, hubs, or driveline issues may cause the shake. Speed, braking, and road conditions help isolate the source.
American Five Star can perform manufacturer-recommended maintenance using the proper fluids, parts, specifications, and service procedures for your vehicle. We document the services performed so you have a clear maintenance history for your vehicle.
Yes, the extreme Arizona heat can be hard on your car. It is essential to make sure you keep up on your regular maintenance to avoid rapid wear, fluid evaporation, and mechanical breakdowns.
Look for clear explanations, documented findings, qualified technicians, professional diagnostic capability, written estimates, warranty coverage, consistent reviews, and approval before work begins. A good shop should explain why a repair is needed—not pressure you to guess.
Maintenance depends on the manufacturer schedule, powertrain, age, mileage, service history, driving conditions, and inspection results. In Arizona, heat and severe-duty use may justify closer attention to fluids, cooling, batteries, belts, hoses, tires, and AC performance.
Brake fluid absorbs moisture over time and is also exposed to high under-hood and braking temperatures. The correct interval depends on the manufacturer, fluid condition, and use; testing the fluid helps support the recommendation.
A common cause is uneven brake-rotor wear or thickness variation created by heat and repeated hard stopping. Worn shocks, struts, steering parts, suspension components, tires, or wheels can also create or amplify the vibration, so our Tempe technicians inspect the full system before recommending repairs.
Brake repair costs in Tempe depend on the vehicle, the parts required, labor, and the condition of the braking system. A vehicle that only needs brake pads will cost less to repair than one requiring pads, rotors, calipers, or hydraulic components. Because brake symptoms can have several causes, we inspect the system before recommending a repair and providing an accurate estimate.
Air or moisture in the system, a fluid leak, hose expansion, an adjustment issue, or a hydraulic component failure may cause a soft or sinking pedal. Because braking ability may be reduced, do not delay inspection.
Noise may result from worn pads, rotor damage, glazed or contaminated friction material, hardware, debris, or normal material characteristics. Grinding or reduced braking performance should be inspected immediately.
Warning signs include squealing, grinding, longer stopping distance, pedal pulsation, steering-wheel shake, pulling, or a brake warning light. Measuring pad thickness, rotor condition, runout, and system operation confirms what actually needs replacement.
Diesel engine repair costs depend on your vehicle, engine type, the cause of the problem, and the parts and labor required. Repairing a sensor or an accessible coolant leak is a different job from replacing fuel injectors, a turbocharger, head gaskets, or a complete engine.
At American Five Star Auto Repair & Transmission in Tempe, we start with diagnostic testing to identify the cause and determine what repairs are needed. We explain our findings and review your repair options so you can make an informed decision. An accurate estimate starts with knowing what has failed and why.
Call 480-966-8181 to schedule your diesel diagnostic appointment.
The decision depends on compression, oil pressure, cylinder and block condition, contamination, failure cause, vehicle condition, warranty, downtime, and total cost. A complete evaluation allows the options to be compared honestly.
Contaminated or incorrect DEF, a failed heater, pump, injector, sensor, wiring fault, crystallization, or an SCR efficiency problem may trigger the warning. Because a countdown can eventually limit vehicle operation, early diagnosis matters.
A DPF warning can mean soot loading is high, regeneration did not complete, or another engine or emissions fault is preventing regeneration. Continued driving may increase restriction, so the cause should be evaluated promptly.
Oil starvation or contamination, foreign-object damage, overspeed, excessive exhaust temperature, boost leaks, restricted air flow, or actuator problems can damage a turbo. The root cause should be corrected so a replacement turbo is not exposed to the same failure.
The computer limits power when it detects a condition that could affect emissions, drivability, or component protection. Turbo, fuel, cooling, sensor, DEF, DPF, wiring, and voltage problems are common possibilities; stored data must be tested in context.
Hard starting, rough running, smoke, poor fuel economy, knocking, or power loss can point toward injectors, but other systems can create the same symptoms. Injector contribution, balance, return-flow, and electrical tests help determine whether cleaning, repair, or replacement is justified.
Contaminated fuel, water, poor filtration, excessive return flow, electrical faults, heat, wear, or high-pressure fuel-system problems can damage injectors. Confirming fuel quality, pressure, balance, and return rates can prevent misdiagnosis.
Black smoke often indicates excess fuel or insufficient air; white smoke can involve unburned fuel, coolant, or low combustion temperature; blue smoke commonly points to oil entering combustion. Smoke color is useful evidence, but testing is required before determining the repair.
American Five Star provides diesel engine diagnostics and repair for light- and medium-duty truck applications in Tempe. Our team evaluates the complete system instead of replacing parts based only on a trouble code. We have proudly served the Tempe area for more than 33 years.
Power loss may involve restricted fuel delivery, injectors, turbo boost, charge-air leaks, exhaust restriction, emissions controls, sensors, or an engine mechanical problem. Testing fuel, air, boost, exhaust, and control data narrows down the actual cause.
Yes. A warning may be triggered by a sensor, wiring problem, temperature issue, solenoid, low voltage, engine-related fault, or an internal transmission condition. The stored codes are clues—not a complete diagnosis.
American Five Star Auto Repair & Transmission serves Tempe and the surrounding East Valley. We diagnose transmission concerns, explain the evidence, and review repair options before work is authorized.
Yes. A professional diagnosis may include a road test, computer scan, fluid inspection, electrical testing, live-data review, and additional hydraulic or mechanical tests when appropriate. Replacement should not be the starting assumption.
Cost depends on the vehicle, failure, parts, labor, fluid specification, and whether the solution is an external repair, valve-body work, rebuild, or replacement. An accurate estimate requires diagnosis; a price given before testing may solve the wrong problem.
Common leak points include cooler lines, seals, gaskets, the transmission pan, and electrical connectors. Because low fluid can cause overheating and loss of hydraulic pressure, check the leak source and fluid level promptly.
Slipping can result from low or deteriorated fluid, incorrect hydraulic pressure, a sticking solenoid or valve, worn clutch material, or an electronic control problem. Limit unnecessary driving and have the vehicle diagnosed, because continued slipping can create additional heat and damage.
Continuing to drive an overheating vehicle can cause major engine damage. Turn off the AC, pull over safely, shut the engine down if the temperature remains high, and arrange an inspection or tow.
Watch for delayed engagement, slipping, harsh or erratic shifts, unusual noises, fluid leaks, a burning odor, or a transmission warning light. These symptoms don’t automatically mean the transmission needs replacement; proper testing is needed to distinguish between a fluid, electrical, hydraulic, or internal mechanical issue.
Start by checking your vehicle manufacturer’s recommended transmission service interval and determining when the transmission was last serviced. Service intervals vary considerably by vehicle and transmission type. Arizona’s extreme heat can also place additional stress on transmission fluid, making fluid condition especially important for Valley drivers.
Here in the Valley of the Sun, temperatures regularly exceed 110 degrees. That heat places additional stress on transmission fluid, so we recommend treating Arizona vehicles as severe-duty vehicles. Worn fluid loses its ability to lubricate, cool, clean, and protect internal components properly.
Fresh, manufacturer-specified fluid restores the detergents, friction modifiers, viscosity, and protective additives the transmission needs. However, fluid service will not repair an existing mechanical or electrical failure. If the vehicle is slipping, shifting hard, hesitating, leaking, or displaying a warning light, it needs a complete diagnosis before repairs are recommended.
Possible causes include poor condenser airflow, a cooling-fan problem, refrigerant charge concerns, compressor performance, or high system pressure. Arizona heat makes correct airflow and system charge especially important.
Low refrigerant from a leak, compressor or control failure, electrical trouble, airflow restriction, blend-door problems, or excessive engine temperature may reduce cooling. Checking pressures, temperatures, controls, and leak evidence prevents guesswork.
Automotive AC refrigerant is not normally consumed. If the charge is low, a leak is likely, although system performance can also be affected by airflow, electrical, sensor, or mechanical problems.
Cost varies widely between a minor electrical or sealing issue and major compressor or evaporator work. Accurate pressure, temperature, leak, and control-system testing is needed before a dependable estimate can be given.
Low coolant, coolant leaks, a failed cooling fan, a sticking thermostat, a restricted radiator, a failing water pump, a faulty pressure cap—also known as the radiator cap—poor airflow, or an internal engine problem may cause overheating. If the temperature begins to rise, turn off the A/C and turn the heater and fan on high to help remove heat from the engine temporarily. Find a safe place to stop as soon as possible if the temperature continues rising. Never open the radiator cap or cooling system while the engine is hot.
Follow the vehicle manufacturer’s fluid specification and interval while accounting for age, mileage, fluid condition, and severe Arizona heat. Mixing incompatible coolant types can reduce protection, so the correct product matters.
Call us if you have any vehicle issues and don’t know where to turn.
American Five Star Auto Repair & Transmission is located at 2070 E Apache Blvd, Suite 101 in Tempe, Arizona. We provide routine and regular maintenance for drivers throughout Tempe and the surrounding East Valley, including Mesa, Chandler, and Scottsdale. If you feel your suspension, brakes, steering, AC, transmission, or engine isn’t working properly, call to make an appointment, and we’ll determine what’s causing the problem.
