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(25)Timing Belt Replacement Service
How much does a Timing Belt Replacement cost?
On average, the cost for a Toyota Sienna Timing Belt Replacement is $865 with $305 for parts and $560 for labor. Prices may vary depending on your location.
Car | Service | Estimate | Shop/Dealer Price |
---|---|---|---|
2000 Toyota SiennaV6-3.0L | Service typeTiming Belt Replacement | Estimate$1248.76 | Shop/Dealer Price$1420.35 - $1902.72 |
2001 Toyota SiennaV6-3.0L | Service typeTiming Belt Replacement | Estimate$1212.72 | Shop/Dealer Price$1377.24 - $1854.32 |
1999 Toyota SiennaV6-3.0L | Service typeTiming Belt Replacement | Estimate$1212.72 | Shop/Dealer Price$1377.35 - $1854.49 |
2003 Toyota SiennaV6-3.0L | Service typeTiming Belt Replacement | Estimate$1212.72 | Shop/Dealer Price$1377.34 - $1854.48 |
2005 Toyota SiennaV6-3.3L | Service typeTiming Belt Replacement | Estimate$1413.53 | Shop/Dealer Price$1584.49 - $2056.17 |
2006 Toyota SiennaV6-3.3L | Service typeTiming Belt Replacement | Estimate$1369.73 | Shop/Dealer Price$1532.76 - $1998.49 |
2004 Toyota SiennaV6-3.3L | Service typeTiming Belt Replacement | Estimate$1340.53 | Shop/Dealer Price$1502.54 - $1967.50 |
2002 Toyota SiennaV6-3.0L | Service typeTiming Belt Replacement | Estimate$1212.72 | Shop/Dealer Price$1377.34 - $1854.48 |
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Sienna
Timing Belt Replacement
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What is a timing belt and how does it work?
An engine timing belt is a fiber reinforced, toothed drive belt manufactured using durable compounds such as highly saturated nitrile. The timing belt allows the crankshaft to drive the camshafts in the cylinder head at half the RPMs of the crankshaft. The camshafts then open and close the engine’s intake and exhaust valves in time with the movement and position of the pistons in the engine.
When to replace the timing belt?
- Every 60k-90k miles. If an engine is equipped with a timing belt, the timing belt must be replaced at the service interval specified by the vehicle manufacturer regardless of whether or not any problem is visible, typically in the range of 60,000 to 90,000 miles. Your vehicle owner’s manual should state the specific service interval.
- Engine stops abruptly or will not start. Occasionally, timing belts can break, or skip, while the engine is running.
- Rough engine operation. The molded, reinforced teeth on the timing belt engage gears on the crankshaft and camshafts. After many tens of thousands of miles, the teeth can wear or break, or the belt can stretch, thus causing the belt to jump position on the crankshaft or camshaft gears. Should the belt jump, the engine will run poorly and perhaps not at all.
- Banging or clanking engine noise. On some engines, if the timing belt has jumped, the pistons and valves can collide and there will be noise and damage. These engine designs are referred to as interference engines. If your car has an interference engine, replacing the timing belt according to the maintenance schedule will minimize the chance that a belt failure will cause engine damage.
How do mechanics replace the timing belt?
Engine designs vary, and thus the replacement procedure will vary, but broadly, the procedure is as follows:
- Disconnect the battery ground cable.
- Once the engine is cold, set the crankshaft to top dead center with the number one piston on the compression stroke. Remove crankshaft pulley.
- Remove all accessories interfering with the removal of the timing belt covers.
- Remove timing belt covers. Lock camshafts, as required, and note position of camshaft timing marks. Remove timing belt tensioner and idler pulleys. Remove timing belt.
- If replacing the water pump, do so at this time, and of course drain the cooling system first. If the engine cooling system thermostat is only accessible with water pump replacement, the thermostat should be replaced as well.
- Installation of the new timing belt includes all of the above steps, performed in reverse, following strict guidelines to assure camshaft and crankshaft (and balancing shaft, if equipped) are in perfect alignment after tensioner has been set.
- Upon completion of the installation, the engine crankshaft is turned by hand 720 degrees and the correct position of the timing marks on the crankshaft and the camshafts is confirmed.
- The vehicle is road tested to confirm normal operation and a service sticker is affixed to the engine noting the date of belt replacement and the vehicle mileage.
Is it safe to drive with a timing belt problem?
No, were a worn out timing belt to snap while underway, perhaps on a highway, it creates a risk of complete loss of engine power while surrounded by fast moving vehicles. Once your vehicle has reached the recommended replacement mileage for the belt, you can eliminate the risk of sudden and unexpected timing belt breakage by having it replaced. If your engine is of the interference type, it is especially important to replace the belt according to the maintenance schedule because sudden breakage of the timing belt, while the engine is running, will likely cause significant damage to internal engine components such as the valves and pistons.
When replacing the timing belt keep in mind:
- An interference engine should be carefully inspected before a broken timing belt is replaced because it may have sustained damage that will have to be repaired prior to installing a new belt.
- The timing belt system includes idler pulleys and a belt tensioner. These components should be replaced along with the belt.
- On some cars, the timing belt drives the engine’s water pump. Mechanics will usually recommend replacing the water pump at the same time that the timing belt is replaced.
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Number of Toyota Sienna Timing Belt Replacement services completed
275+
services done by our mechanics
TOTAL NUMBER OF EXPERT Toyota MECHANICS
1700+
experts on our platform
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Meet some of our expert Toyota mechanics
Real customer reviews fromToyotaowners like you.
Excellent Rating
(25)
Rating Summary
22
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2
22
1
2
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15 years of experience
1061 reviews
Request Robert
Robert
15 years of experience
Request Robert
by Caden Marchese
Sienna 1998 - Timing Belt - Denver, CO
Robert replaced my timing belt, water pump and pulleys and gave me an honest diagnostic. He also fixed a serpentine belt squeak at no additional charge. He's very nice and has a cute dog, and it was the best price in town.
0 years of experience
646 reviews
Request Joseph
Joseph
0 years of experience
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by Zhiwei Liu
Sienna 2004 - Timing Belt - Sandy, UT
good
25 years of experience
42 reviews
Request Jonathan
Jonathan
25 years of experience
Request Jonathan
by Angelique Johnson
Sienna 2015 - Brake Rotor/Disc - Marietta, GA
He was very friendly and easy to understand where he was coming from with my car. I would recommend him to my friends and use his service again. My brakes are working very well also.
5 years of experience
41 reviews
Request Johnathan
Johnathan
5 years of experience
Request Johnathan
by Aleh Taranda
Sienna 2019 - Spark Plugs - Chesterfield, MO
Excellent job! Highly professional and knowledgeable.
Excellent Rating
(25)
Rating Summary
22
1
2
22
1
2
SEE REVIEWS NEAR ME
Number of Toyota Sienna Timing Belt Replacement services completed
275+
services done by our mechanics
TOTAL NUMBER OF EXPERT Toyota MECHANICS
1700+
experts on our platform
Yourmechanic was featured in
Learn more about us
Popular Toyota Jobs
- Toyota Sienna Water Pump Replacement
- Toyota Sienna Exhaust Manifold Repair
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- Toyota Sienna CV Axle / Shaft Assembly Replacement
- Toyota Sienna CV Axle / Shaft Assembly Replacement
- Toyota Sienna Brake Caliper Replacement
- Toyota Sienna Brake Caliper Replacement
- Toyota Sienna Brake Caliper Replacement
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