2001 Toyota Sienna Toyota Sienna 2001

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2001 Toyota Sienna repairs by problem area

Engine (47%)

Transmission and Drivetrain (4%)

Brakes and Traction Control (6%)

Suspension and Steering (16%)

Electrical and Air Conditioning (14%)

Paint, Rust, Leaks, Rattles, and Trim (3%)

Other (10%)

Chart based on 126 repairs.
See TSBs and recalls for the 2001 Toyota Sienna.

2001 Toyota Sienna engine repair cost distribution

$2500+ (2%)

$1000 - $2499 (6%)

$500 - $999 (17%)

$100 - $499 (52%)

< $100 (24%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 54 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2001 Toyota Sienna 4dr Minivan, ext.

210-horsepower 3.0L V6 4-speed automatic FWD

194000 mi

US $210
check engine light on indicating downstream O2 sensor failure on bank 2. Replaced bank 1 and bank 2 sensors. 
226000 mi

US $600
replaced motor mounts 
114400 mi

US $1500
New catalytic converters (3) installec 
125400 mi

US $2000
Two out of the three catalytic converters were bad and replaced 
130400 mi Emission control error reported. Checked and found TSB report of failure of portion of on-board computer. Mechanic will still only believe the repairs is replacing the catalytic converter and will not even investigate the TSB. 
150700 mi

US $320
Lots of exhaust noise from original-equipment muffler, but mechanic found that connection to exhaust pipe was corroded. He welded it and stopped the noise. 
154000 mi

US $400
New exhaust kit- muffler & pipes Timing belt replacement Water pump replaced 
154000 mi

US $400
Leaky valve gasket replaced 
181000 mi Engine froze up and would needed to be replaced. It was junked and I now have a different vehicle. 
177700 mi

US $300
Timing belt tensioner broke. Had to replace timing belt, idlers and tensioner. Also replaced water pump. 
191000 mi

US $300
Check engine light came on. Code P0442 indicated small leak in fuel vapor system. 
200800 mi

US $300
CEL on. Replaced Catalytic Converter and rear Oxygen sensor. 
146000 mi

US $500
MIL on but bulb had burned out. 2 knock sensors replaced. MIL on but bulb had burned out. Air/fuel mixture sensor was failing. Valve cover gaskets leaking. 
151200 mi

US $140
Car had P0440 error and was diagnosed by shop with failed catalytic converter at @155,000. Estimate is about $950. No current symptoms. We are waiting for it to get worse. Repair trip included two new tires. 
169000 mi Diagnosed with failing catalytic converter. Prior to my buying it, car was driven unknown many, many miles with engine light on. This probably contributed to this failure. 
153800 mi Oil leak (1/2 quart every 3000 miles) diagnosed as coming from the rear main crankshaft seal. 
173000 mi

US $200
Code 1554. Flushed engine with BG Performance Enhancer. Changed oil to full synthetic. Known problem with sludging in these engines affecting valve timing. If this doesn't fix completely, we'll flush again. Run synthetic only from here. 
173000 mi Problem recurred. the VVT problem leads to sudden losses in braking, which sealed the deal. When the car mistimes, it also doesn't produce adequate vacuum. That robs the brake booster, and the power brakies no longer work. Unexpectedly! 
213000 mi

US $3200
Melted catalytic converters - may be due to injectors running rich 
204452 mi

C $152
Replaced Bank 1 Sensor 1 Oxygen sensor 
115000 mi

US $60
CE light, dealer said it needed a new Cat for $1400. Free scan at autozone, pointed to aft o2 sensor. Replaced sensor for $60, light went off. But, rusted mounting studs broke off, installed sensor with super glue & sm. C clamp. Still on! 
138260 mi

C $650
One of the two fans had to be replaced 
143220 mi

C $379
Once warm the minivan ran quite roughly. Engine flashing as opposed to solid warning Also noticed tailpipe dark blue smoke. Diagnosed by independent garage as cylinder misfiring caused by worn solenoid. Rear right solenoid replaced, Removed and inspected front solenoid 40 km road test Right rear solenoid - $165.40 CAD 2 hrs. labour - 170.00 HST 43.60 Total. $379.00 CAD 
253000 mi

US $501
replaced AC belt 
96500 mi

US $300
O2 sensor on back bank failed. 
199700 mi

US $392
Had car 1 week and coil for number 2 plug died. Car has new recondition Eng therefore old parts reinstalled with 199,990 miles on them. 
207000 mi

US $178
another "coil" went out making the third one I had to replace. Cost is from 300 to 178.00 depending on cost of "coil" which is a coil built into the plug wire on Toyota. Use to be 1 coil for all 6 plug wires now one for each coil. 
207000 mi

US $138
ANOTHER plug coil went out! They should have gone back to just ONE coil! 
209000 mi

US $117
ANOTHER COIL WENT OUT! Hope this is the last one! They could be the original and have 200,000 on them so we'll see. Now the eng light is on again but no miss so it's probably the sensors before and after the catalytic converter fouled-again. 
204200 mi

US $318
Ck eng lite on-diagnose-up line oxygen sensor-gas mileage horrible-car ran good but mileage bad. 
215000 mi

US $120
Prior to this the engine light came on stayed on, mechanic checked for problem-time to replace the catalytic converter-car has over 200,000 miles on it and assume it's the original. Ran rough-check eng light blinking, needed the last coil for eng. 
215000 mi

US $589
Catalytic converter bad 200,000 plus miles on it and a rust spot getting bigger. 
227000 mi Check eng lite came on, was not blinking, so had mech check it out. Slight surface rust spot on gas filler pipe creating air leak at cap. Cleaned-light now out. 
237000 mi

US $178
Eng began to miss-coils --again replaced two. Dad shop check dist pick up system-working fine. ck eng light back on but not flashing so another trip coming up. runs fine otherwise. 
240000 mi

US $275
muffler leaking 
122000 mi

US $150
Replaced leaky valve cover gasket. Also tune-up. Leaky exhaust, loud. Repaired pipe, was rusty. 
91000 mi

US $500
O2 sensor and Mass airflow sensor replaced. They replaced the wrong O2 sensor during last visit. They replaced the other O2 sensor with no charge. 
176900 mi

C $250
fuel pump failure 
126200 mi

US $175
Bad O2 sensor, replaced. 
92000 mi

US $50
After t belt/water pump replacement, car lost coolant, overheated. Shop changed thermostat, coolant, radiator cap, therm. switch for fan. Hard to tell if coolant loss has continued. Clumps in coolant, and not returning well to radiator from overflow. 
104000 mi

US $135
Top tank of radiator was cracked. Small leak in aluminum core was also found upon removal. Replaced radiator, top and bottom coolant hoses, and clamps. 
108000 mi

US $30
Noticed coolant leak below engine, after car was parked. Water seal plate on front of block was leaking. Removed, cleaned, and resealed water seal plate with special Permatex silicone sealant, and topped off coolant with 50/50 prediluted coolant. 
198300 mi

US $500
Two bad motor mounts, and there is still some motor vibration. 
177000 mi

US $120
the car often wouldn't start, despite changing the battery, then started getting squealing noises from the engine, then finally had a burnt rubber smell. Two belts needed changing, fine since. 
80600 mi

C $800
Engine Knock Sensor 
151000 mi Check engine light. Code:P0420 Catalyst system efficiency below threshold Bank 1. Had already paid $416 to have catalytic converter replaced. Told it would cost $8 to replace another one. Check engine light has stayed off,so did not repair. 

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2001 Toyota Sienna 4-door

6-cylinder automatic 2WD

85000 mi

US $90
Check engine light on, severe pre-ignition under heavy load. Dealer diagnosed bad knock sensor. Returned home using premium fuel which greatly helped pre-ignition problem. Plan to replace sensors myself. 
117000 mi

US $300
Air/Fuel Sensor (lambda or oxygen sensor, but don't tell the Toyota service people that it's a oxygen sensor because they will argue with you till your blue in the face) Bank 1/Sensor 1 Pretty certain the tech who worked on the van the first time actually broke the other "Air/Fuel sensor". "Air/Fuel Sensor Bank 2/Sensor 1" Now I'm waiting for the "Replace Vehicle" code. "Knock Sensor Bank 1 Malfunction" 
118000 mi

US $1900
The second knock sensor decided to die and the mass airflow sensor bit it. The van is for sale!! 

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2001 Toyota Sienna

4-cylinder automatic 2WD

158300 mi P0420 code - also found oil leak in engine. We are unsure of the source of the leak. The problem is ongoing. 

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2001 Toyota Sienna Engine Problems

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