

Engine (38%)
Transmission and Drivetrain (2%)
Brakes and Traction Control (8%)
Suspension and Steering (14%)
Electrical and Air Conditioning (24%)
Paint, Rust, Leaks, Rattles, and Trim (9%)
Other (6%)
$2500+ (1%)
$1000 - $2499 (5%)
$500 - $999 (19%)
$100 - $499 (44%)
< $100 (32%)
176-horsepower 2.5L I4 Hybrid 6-speed shiftable CVT FWD
8500 mi | Low pressure fuel pump replaced free under a campaign for this issue |
156-horsepower 2.5L I4 Hybrid CVT FWD
50 mi US $2800 |
Engine began suddenly running very rough and on the verge of stalling at highway speeds. Car was brought to dealer, who also fixed electric problem , (dark current draining battery). This problem was determined to be small pieces of carbon infiltrating emissions controls, (PCV valve, etc.) High repair cost was due to labor as emission controls/modules were located between engine and firewall. Over 2,000 miles have been accrued since repair without further problems. |
268-horsepower 3.5L V6 6-speed shiftable automatic FWD
No work performed. Engine randomly hesitates on start, dealership claims it was a bad batch of fuel, threw some additive in and called it a day. This did not fix the issue. | |
16100 mi | Nothing. Dealership claims they cannot replicate the issue, though I can replicate it. I have recorded video to verify to the dealership that this is an ongoing problem. |
268-horsepower 3.5L V6 6-speed shiftable automatic FWD
26000 mi | charcoal canister needed to be replaced. 3 1/2 hr. job. Found out from another dealer that the real reason the light was on was that a mouse had chewed thru the wiring harness. The first dealership should have checked that first thing. I doubt anything was wrong with the canister, be cause the light kept coming on. |
268-horsepower 3.5L V6 6-speed shiftable automatic FWD
162000 mi US $1200 |
Alternator replaced |
156-horsepower 2.5L I4 Hybrid CVT FWD
50000 mi | Car would not start on different occasions |
268-horsepower 3.5L V6 6-speed shiftable automatic FWD
79000 mi US $50 |
Check engine light was on . Replaced the oxygen sensor. |
146000 mi US $120 |
O2 Sensor |
174000 mi US $170 |
O2 Sensor |
135000 mi US $90 |
Synthetic Oil Change |
268-horsepower 3.5L V6 6-speed shiftable automatic FWD
120900 mi C $250 |
Replaced spark plugs as per scheduled maintenance at 19x,000 km. Car was not misfiring and had no CEL. Took 3 hours of work as 3 out of 6 plugs where deep behind the engine next to the firewall and a lot of parts needed to be removed. |
268-horsepower 3.5L V6 6-speed shiftable automatic FWD
133000 mi US $1000 |
Replace water pump. |
268-horsepower 3.5L V6 6-speed shiftable automatic FWD
122000 mi US $280 |
Spark plugs |
198000 mi US $450 |
I had a belt tensioner replaced and the belt. |
268-horsepower 3.5L V6 5-speed shiftable automatic FWD
87000 mi US $215 |
Intermittent misfire cyl #3. Replaced #3 ignition coil and plugs. Still misfired. Ultimately fixed by cleaning contacts and wiring to ECM (Engine Control Module). |
66000 mi | a rubber oil hose broke resulting in the loss of engine oil |
74500 mi US $550 |
check engine light - code shows evap leak. repaired hoses and canister. much time in analysis of what was wrong and how to fix |
103000 mi | top of radiator blew hole below filler cap, temp gauge hot , repair light on dash, need replacement radiator |
25000 mi US $240 |
Exhaust manifold has design flaw but no recall. Air/fuel sensor Bank 1, sensor 1 fails prematurely. Replace mainfold/sensor for $1800 or sensor for $240 every 20,000'ish miles. I chose the latter. Good now for another few years (I hope) |
34200 mi | This is the second time the air-fuel sensor has died. An OEM replacement was used last time and lasted only 1 year. There is a design-flaw in the exhaust manifold. Must be replaced to avoid repeated repairs, but that would cost $1800 :-( UPDATE: May 2017 - 5 years later: No new failures of this part. Perhaps the second replacement done in 2012 will be the last one. Did they fix the sensor design ? (I still haven't replaced the exhaust manifold which was the original Toyota recommendation) |
35000 mi US $15 |
Gas smell in garage on very hot days. Replaced gas cap and seems to have gone away. Finally got around to replacing A/F sensor (for second time - see earlier entries). Replaced it myself with help of a friend (with OEM part like before). We'll see how long it lasts on this second sensor. (First one lasted only 14 months) UPDATE: May 2017 - 5 years later: No new failures of this part. Perhaps the second replacement done in 2012 will be the last one. Did they fix the sensor design ? (I still haven't replaced the exhaust manifold which was the original Toyota recommendation) |
81000 mi US $1000 |
Bad ignition coil Bad head gasket |
80000 mi US $120 |
Number 3 coil had to be replaced |
169000 mi US $150 |
air filter was overdue for change and was changed |
120800 mi US $800 |
Replaced spark plugs & belts |
187000 mi US $75 |
Check engine light flashing. Showed 3 cylinders had misfired. Reset codes, replaced gas cap, added Techron fuel cleaner, and started going to Chevron for gas instead of cheapest I can find. This car's at almost 200K so I think I need to baby it a bit with higher quality gas and dropping a bottle of Techron in every 2-3 months. So far no more misfires...fingers crossed. |
44000 mi | Hose to oil system failed. Lost all oil. Toyota said some Avalons have this issue. yet, no recall or service bulletin. |
159000 mi US $120 |
Flex exhaust pipe was replaced. |
90000 mi US $250 |
Replaced two coils |
99000 mi US $1350 |
Check engine light for air/fuel sensors. Could have replaced sensor but due to a defect in the exhaust manifold this issue would not go away completely. Had to replace exhaust manifold and 2 air/fuel sensors. |
Engine not specified
65000 mi US $600 |
VVT oil line ruptured and lost all oil in engine. Toyota knows about the problem but had done nothing. We were lucky but others have needed major engine repairs because of this problem |
268-horsepower 3.5L V6 5-speed shiftable automatic FWD
49000 mi US $700 |
Stopped to get gasoline and engine would crank but not start. towed to shop. The starter button or some other circuit element was replaced. Check engine light came on. The dealer said first my gas cap was leaking and replaced it. Later on same day, check engine light came on, on second trip, I was told there was a leak in the gasoline tank and it had to be replaced. |
56000 mi US $250 |
replace charcoal cannister |
55000 mi US $150 |
The car threw a CEL so we took it in. One of the coil packs was bad and they replaced it. The car drove pretty much OK before we got it repaired - my wife said she could feel it but I couldn't. |
73700 mi US $245 |
Ignition coil |
23000 mi US $1 |
Pin hole leak in high pressure oil line |
82500 mi | Low oil. Turned out to be a bad oil plug. Jiffy Lube replaced it and topped off the oil. It was THEIR error, not the car's. The car was sounding louder than usual and the engine light came on. |
85300 mi US $180 |
coil package had to be replaced. |
128700 mi | Engine running rough. Misfire's detected. Replaced #6 ignition coil. |
68000 mi | Leaking huge amounts of oil. had to tow car to dealership. was told it was a recall on the oil hose. 2 days after repair, got a letter in the mail announcing the recall. watever. wonder if the engine is damaged from running w/ no oil... |
285000 mi US $375 |
Oil pan seal was replaced. |
52000 mi | Avalon Catastropic oil leak - plastic gasket broke and drained oil. Dealer had car for 1 week and had to dismantle engine, replace broken plastic gasket, oil pan and other major engine parts and then rebuild and flush out engine. |
114000 mi US $865 |
R&R Charcoal Canister R&R Fuel Cap R&R Ignition Coil, Left bank cylinder |
140000 mi US $777 |
R&R 3 Ignition Coils |
96000 mi US $900 |
x3 Ignition Coils. Something went wrong with the repair and it begins misfiring after long drives (>60mi) Following engine coil replacement the air box broke and needed to be tweaked. But it doesn't seem to have fixed the problem. Car is currently in the shop as of writing this. I'm assuming they will fix it this time. |
117160 mi C $220 |
Cylinder misfire - change of part |
133920 mi C $260 |
One back ignition coil was mis-firing. Replaced other 2 back ignition coils at the same time as a prevention. |
6000 mi | Transmission shifting problems - Tran firmware re-flashed under Toyota Service Bulletin (TSB) |
127000 mi US $165 |
Ignition control module on #3 cylinder |
136000 mi US $100 |
#6 ignition control module |
220700 mi US $80 |
Bad Ignition coil bank 1 |
53000 mi US $367 |
Replaced #2 & #4 ignition coils. |
90480 mi US $565 |
Replaced all six ignition coils and spark plugs |
157500 mi US $185 |
Check Engine light with VSC (Vehicle Stability Control Light |
280-horsepower 3.5L V6 5-speed shiftable automatic FWD
159000 mi | minor oil leak. no repair, would cost $3300. Update September 2018: never fixed. Will give car as-is to granddaughter. |
132500 mi US $550 |
Replaced ignition coil |
59500 mi US $150 |
replaced a coil pack |
59900 mi US $150 |
replaced a coil pack second month straight |
56000 mi US $60 |
Ignition - One of the spark plug coils died. Diagnosed via OBD reader, replaced coil with new DENSO unit purchased Amazon. Quick & Cheap, but coil should not have died with only 55,000 miles on clock. |
74000 mi US $28 |
Gas mileage down 20% or more. The fix was a new MAF (Mass Airflow Sensor). Remove wired connector, remove 2 screws, pull up and remove MAF. Install new on in reverse order. |
74000 mi US $90 |
Replaced original (2005) serpentine belt, also all pulleys, one pulley had worn bearings. Overall I consider this preventive maintenance. |
70300 mi US $800 |
Cylinder 1 and 3 coils failed. Replaced all coils and plugs. |
133000 mi US $1000 |
cylinder #6 ignition coil |
158000 mi US $650 |
Engine warning light on. Replaced ignition coils |
69000 mi US $225 |
Ignition coil #6 went out. All ignition coils were replaced along with spark plugs. |
33000 mi | Ignition coil on bank 1 bad. Check engine light. Dealer repaired it for free. |
54000 mi US $400 |
Water pump started to leak. Replaced. |
65000 mi US $800 |
Replaced alternator and battery and belts |
43000 mi US $360 |
Exhaust manifold replaced tsb, cat replaced tsb, system flashed twice |
86000 mi US $75 |
20170315 exhaust heat shields rusted loose, resecured |
41000 mi US $900 |
Ignition coils had to be replaced. |
40000 mi | Car hesitated on accelerating repair covered under TSB for emission computer -new program, new sensors 4 hour job. |
147000 mi US $500 |
Spark coil malfunctioned on one of the back cylinders causing check engine light to come on. Car still ran fine but we towed it just to be safe. Replaced all three rear spark coils because getting to them was difficult and expensive. |
164000 mi US $1230 |
Emission control system problem caused Check Engine & Traction Control lights to come on. Needed to replace one of three catalytic converters and an air/fuel sensor. |
43000 mi | Several of the symbols suddenly lit, including the check engine, stability control, traction control and cruise control problem lights. The dealer said it was due to a defective gas cap. |
101000 mi | Bad cell in battery; abs waking up overnight and draining battery. Dealer replaced battery, cleaned corrosion at ECM connection. |
36000 mi | hard shifting, hesitation when pressing accelerator until car actually responds. |
210-horsepower 3.0L V6 4-speed automatic FWD
206000 mi US $40 |
Replaced both upstream oxygen sensors. Bought replacement sensors |
210-horsepower 3.0L V6 4-speed automatic FWD
186000 mi US $415 |
valve gasket replced |
189000 mi US $430 |
B1S1 Oxygen Sensor Replaced |
216000 mi US $850 |
Oxygen sensor replaced + transmission fluid flush and refill |
78414 mi US $75 |
Getting a ‘engine running too cool’ code. Replaced t-stat. Solved problem. Replaced all cooling system hose as p.m. on the 12 year old car . |
137000 mi US $331 |
crankshaft pulley replacement |
210-horsepower 3.0L V6 4-speed automatic FWD
173000 mi US $2100 |
Cracked radiator Oil leak fix |
207700 mi US $325 |
Idol control valve failed and was replaced. |
112300 mi US $210 |
Car became increasingly difficult to start. When taken to mechanic, he cleaned the idle air control valve, throttle body assembly, and MAF sensor. |
115000 mi | The serpentine belt was squeaking, so we sprayed belt grip on it, to no avail. When I noticed that the belt had just been replaced late last year, we returned to our mechanic, who adjusted it for free. |
171000 mi US $120 |
Gas cap was leaking vapors. Repair was unsuccessful... deciding when to spend $250 to get it repaired. |
178000 mi US $600 |
fuel pipe crack, sold car |
116560 mi A $195 |
Replace rocker cover gasket |
177000 mi US $100 |
Valve cover leak |
189000 mi US $300 |
Replace Battery and Alternator. Battery was 5years old. |
61501 mi US $900 |
check engine light on continuously with code reference for air fuel ratio sensor failure, replaced both front & back sensors and flushed fuel injectors |
134400 mi US $160 |
After starting up and driving a rough engine sound was noticed. The coil on cyl #2 was determined bad and was replaced after swapping it to cyl #4 for verification that the error code would follow. It did and was replaced on cly #4. |
136400 mi US $170 |
Replaced another coil. |
140000 mi | The knock sensor was throwing out a code. This was replaced new, but failed under warranty. The part and the labor were taken care of by the mechanic/parts manufacturer. |
143000 mi US $600 |
Had already replaced 2 of the 6 coils and with the same issue again on another cyl, decided to replace them all and be done with it. I have all new individual coils now and it is running smooth. |
235300 mi US $57 |
Car wouldn't idle. A sensor in the fuel injection system was "coked up". |
210-horsepower 3.0L V6 4-speed automatic FWD
111100 mi US $300 |
Oxygen sensor failed so car would not pass emissions test |
178000 mi US $380 |
Original 13 year old radiator developed a leak, |
200500 mi US $26 |
Replaced purge valve in next to charcoal canister |
212000 mi US $125 |
Replaced coolant hose. Replaced front valve cover gasket. |
210000 mi US $100 |
CEL for oxygen sensor. Replaced sensor myself and problem fixed |
257000 mi US $200 |
water pump leak. needed replace |
210-horsepower 3.0L V6 4-speed automatic FWD
149000 mi $650 |
Emissions T2 sensor replaced, plus check valve replaced. |
136000 mi | Small oil leak. |
138000 mi US $380 |
oil leak from seals |
87000 mi | Rear engine mount was replaced due to vibrations being transferred to the steering rack and hence to the steering wheel. |
120000 mi US $180 |
Timing idler pulleys had bearing noise (probably due to faulty hydraulic tensioner). Early for timing component and belt change (put about 37,000 miles after purchasing this car a year ago). Previous timing belt was still very good. |
88000 mi | Engine totally failed. Only solution: used or rebuiolt engine |
193000 mi US $500 |
valve cover gasket |
215400 mi US $300 |
back gasket engine cover |
220000 mi US $300 |
O2 sensor |
230000 mi US $600 |
One of the fuel injectors was also replaced, then the issue was fixed. |
116000 mi US $400 |
replaced idle control motor |
112300 mi US $200 |
Oxygen sensor |
155000 mi US $25 |
Warning light came on indicating bad o2 sensor. O2 sensor frozen in exhaust manifold. Will drive anyway. Apparently this is a common problem with 2000 through 2001 Toyotas, but Toyota won't address. |
155300 mi US $400 |
Emission control system problems |
117000 mi US $350 |
check engine light came on and the dealer found that a sensor was not functioning properly. I had the component replaced. |
88828 mi US $422 |
Left cylinder bank O2 sensor replaced |
90931 mi US $605 |
Right cylinder bank O2 sensor replaced |
109000 mi US $273 |
Check engine light with code for leak in fuel system. Shop tried to find leak in system but couldn't. Reviewed TSB for 2000 Avalon, said it could be a leak around oxygen sensor, sealed area around sensor with sealant. Check engine light... |
110000 mi US $90 |
CEL, no code, could not replicate. Light was reset but again came on after two days. It's a mystery. |
118300 mi US $256 |
check engine light. P1o7 code. Previously could not be solved. Replaced MAF sensor. Problem fixed. |
124500 mi US $22 |
Replaced spark plugs and cleaned mass air flow sensor. |
141000 mi US $600 |
Replace oil pan to fix oil leak from the drain plug. Drain plug could not be re threaded. |
159000 mi US $70 |
Cleaned fuel injectors. Earlier shop charged about $430 but didn't fix problem. |
128200 mi US $380 |
Valve cover gasket leaking. Oil drips on exhaust and smoke and smell enters cabin. |
144000 mi US $20 |
Check engine light came on. Diagnosed bad gas cap. Replace gas cap. Filler tube is rusting, need to fix as gas caps keep rusting out. This is 3rd gas cap in 7 years. |
154000 mi US $160 |
Needed new muffler |
71200 mi US $400 |
Replace leaking valve cover gaskets |
271700 mi US $540 |
Engine would overheat when driving up the mountain we live on at full speed with air conditioner on. |
297000 mi | The overheating problem was never fixed. My mechanic thinks it is a partially blown head gasket. He said the car would probably run fine without fixing it, just need to be careful when going up the mountains here in Colorado. |
90000 mi | Car stopped running, thought it was fuel pump. Further checking: timing belt broke. Engine was supposedly rebuilt two years ago. Turns out it is a salvage yard engine replace by unethical shop. |
139000 mi US $700 |
Catalytic converters replaced all three. Aftermarket muffler. New o2 & ho2 sensors, all 6 fuel injectors coil packs & spark plugs, short ram intake. Battery & cables. Oil pan inspection & gaskets, intake & exhaust manifold gaskets. New radiator. |
356000 mi US $500 |
Oil control valve (ovc) and oxygen sensor caused the car to misfire on 1,3,5 cylinder. |
201500 mi C $950 |
Water punp bearing failed. This was a replacement water pump that had been put in 3 years ago. |
208320 mi | Recurring P0420 code when driving at highway speeds. Likely due to failing cat. converter. They did an Injector clean, air intale clean and Mass Air Flow Sensor clean and (so far) the code has not come back. |
300000 mi | Blew up. It over heated and oil gasket blew and made a fire. i had to call the fire department. |
185300 mi US $150 |
loose motor mount, and tightened something that was rattling |
217900 mi US $477 |
Replaced valve cover gaskets and both camshaft oil seals. |
240100 mi US $188 |
Highly trusted long-term mechanic recommended replacement of Engine Torque Mount. No noticeable problem affecting safety or driveability of vehicle before or after replacement. |
248200 mi US $437 |
Engine light on. Evaporation control canister replaced. |
169000 mi US $675 |
Replaced charcoal canister, $475. |
202000 mi US $240 |
There are two camshaft controllers (position sensor?)--one for each of the two camshafts. One of these controllers went out and had to be replaced. |
Engine not specified
231500 mi US $300 |
The key ignition would not work. Also the steering column had rusting. |
6-cylinder automatic 2WD
276500 mi | Replace EGR Valve. |
45000 mi US $526 |
The check light was on. The dealer found the speed sensor is out. So a replacement was made. |
284000 mi US $2200 |
Timing belt, fuel pump. EGR valve |
285800 mi US $181 |
Replace fuel pressure regulator. The car had a strong fuel odor, especially when the fuel was less than 1/2 full. The odor was strong through the vents. The repair resolved the issue. |
173000 mi US $350 |
Water pump went out |
178000 mi US $104 |
O2 sensor went bad |
130000 mi US $200 |
Flex pipe ahead of the catalytic convertor was replaced. |