Unexpected Acceleration Issues

Over a few model years, Avalons had scattered reports of sudden or unintended acceleration without the gas pedal being pressed. This led to anxiety amongst some owners over potential safety risks.

In most cases, the underlying causes were faulty accelerator pedals or incompatible replacement floor mats trapping the gas pedal down. Replacing corroded pedal assemblies and using factory mats designed for the Avalon interior solved these acceleration incidents.

Potential Fuel System Defects

A small percentage of early 2000s Avalons had suspected defects with fuel system parts like injectors, fuel pumps or filters causing drivability problems. Symptoms ranged from surging and jerky acceleration to complete engine failure while driving.

Precision Auto Care technicians methodically test each component of the fuel supply path – lines, injectors, fuel pressure – to isolate defects. We then replace only the faulty parts, saving owners money over guessing.

Faulty Airbag System Operation

Over time, aging sensors, weak car batteries, or previous airbag deployments can cause airbag system malfunctions. Warning lights flash erratically or airbags fail to deploy in accidents.

Our certified technicians use computer diagnostics to assess every sensor and connection point across the airbag circuits. We methodically confirm and restore correct airbag functionality as needed through sensor adjustments or replacements.

Power Steering Fluid Leaks

The Avalon’s power steering system has durability limits, with some models eventually developing leaks from the high-pressure lines, pump, or rack and pinion gear housing. Fluid loss then causes stiff and difficult steering control.

After confirming the leak locations, we thoroughly clean and seal any cracks or loose fittings on the steering gear. For more significant leaks or component wear, replacements of the affected steering parts may be required.

Alternator Failure Symptoms

As the alternator and battery wear out around 100k – 150k miles, symptoms like dimming headlights, electrical glitches, and engine stalling arise during driving. Ultimately the alternator fails to charge the battery.

Once diagnosing the bad alternator, we only install replacement Toyota OEM alternators made specifically for the Avalon model. This avoids rebuilding only for the alternator to quickly fail again. Proper battery system function is then restored.

AC System Operation Issues

Over years of summer usage, microscopic refrigerant leaks, blower fan failures or duct sealing breaks can occur. Owners then suffer from inadequate cabin cooling, musty odors, or limited airflow from vents on hot days.

For AC issues, we start by recharging the refrigerant system and confirming all connections are airtight. We also test electrical circuits and airflow paths for any restrictions. As needed, we replace worn AC compressors, blower units, or leaky ductwork.

Timing Belt & Tensioner Defects

The Avalon timing belt synchronizes the engine’s valve and piston movements. If this belt loosens or fails around 90k-100k miles, the engine can misfire or stop running during acceleration.

For timing belt services, Precision Auto Care only uses Toyota OEM belt kits with updated tensioner parts. This avoids any chance of the same defects recurring post-repair. We also confirm precise belt-to-gear alignment so acceleration remains smooth.

By keeping up with scheduled maintenance and addressing any Avalon problems promptly, owners can expect many more years of reliable daily use from these vehicles. Our expert Toyota technicians aim to provide trustworthy solutions – and peace of mind behind the wheel once again.

Schedule an appointment with Precision Auto Care if your Avalon exhibits any unusual symptoms or existing issues have returned after repairs elsewhere. As a top-rated auto shop in San Leandro, we have the skills and experience to accurately diagnose Avalon problems and help restore your vehicle to like-new condition again.

With routine upkeep and expert problem-solving from Precision Auto Care when issues arise, Toyota Avalon owners in the East Bay can expect many more years of safe, dependable daily transportation. As the flagship Toyota sedan, properly maintained Avalons have regularly reached 250,000+ miles and are known for enduring quality.

To keep your Avalon running optimally for years ahead, turn to Precision Auto Care in San Leandro for all maintenance and repair needs – from brakes and tires to electrical defects. As specialists in Toyota vehicles across hundreds of customers, we aim to give every Avalon owner attentive care and proven solutions. Contact our service team or conveniently book an appointment online today.