I have 150,000 trouble-free miles on a 2002 Silhouette 3.4 litre engine. I have kept up on all recommended maintenance. My question is; should I replace the timing chain if I want to keep it another 50K+ miles?

How many miles on engine? How often do you change oil? Used this shop before? Used same type of oil always? Best would be to install mechanical pressure gauge to see what is going on.

Tire-Go by the label on the door jam on the driver's door
Oil-Follow the manufacturer's recommendation in the owner's manual
Maintenance-Today's cars usually come with a maintenance schedule. Follow the proper maintenance for the mileage your car currently has on it.
If that puppy has only 45,000 miles on it, the timing chain shouldn't have to be replaced until it's between 120,000 and 150,000 miles.

Under normal driving conditions, Lexus recommends not changing the fluid until 150,000 miles.

NORMAL MAINTENANCE @ 150,000 MILES (240,000 Kilometers) - COOLANT - REPLACE - [Drain, flush, and refill every 150000 miles (240000 Km) or every 60 months, whichever occurs first.]

Scheduled Maintenance The service shown in this schedule up to 150,000 miles (250,000 km) should be performed after 150,000 miles (250,000 km) at the same intervals.
See Owner Inspections and Services for maintenance information.
Scheduled Maintenance Mileage
Maintenance Group No.
6,000 Miles (10 000 km)
1
18,000 Miles (30 000 km)
2
30,000 Miles (50 000 km)
3
36,000 Miles (60 000 km)
4
42,000 Miles (70 000 km)
1
50,000 Miles (83 000 km)
5
54,000 Miles (90 000 km)
2
60,000 Miles (100 000 km)
6
66,000 Miles (110 000 km)
1
72,000 Miles (120 000 km)
4
78,000 Miles (130 000 km)
1
90,000 Miles (150 000 km)
7
100,000 Miles (166 000 km)
8
102,000 Miles (170 000 km)
1
108,000 Miles (174 000 km)
4
114,000 Miles (190 000 km)
1
120,000 Miles (200 000 km)
6
126,000 Miles (210 000 km)
2
138,000 Miles (230 000 km)
1
150,000 Miles (250 000 km)
5
Maintenance Requirements - Group 1 • Rotate the tires. See Tire Inspection and Rotation for the proper rotation pattern and additional information. • Inspect the brake system. Check the brake calipers for freedom of movement and lubricate if required. • Inspect the exhaust system and shields. • Lubricate the door hinges, check links, hood and sunroof (if equipped). Maintenance Requirements - Group 2 • Rotate the tires. See Tire Inspection and Rotation for the proper rotation pattern and additional information. • Inspect the brake system. Check the brake calipers for freedom of movement and lubricate if required. • Inspect the exhaust system and shields. • Lubricate the door hinges, check links, hood and sunroof (if equipped). • Inspect the engine accessory drive belt and coolant hoses every 12 months or 18,000 miles (30,000 km), whichever occurs first. Maintenance Requirements - Group 3 • Rotate the tires. See Tire Inspection and Rotation for the proper rotation pattern and additional information. • Inspect the brake system. Check the brake calipers for freedom of movement and lubricate if required. • Inspect the exhaust system and shields. • Lubricate the door hinges, check links, hood and sunroof (if equipped). • Replace the engine air cleaner filter every 36 months or 30,000 mile (50,000 km), whichever occurs first. An Emission Control Service . (See footnote) • Inspect the vacuum lines/hoses every 24 months or 30,000 mile (50,000 km), whichever occurs first. An Emission Control Service . (See footnote) • Replace spark plugs. An Emission Control Service.

use a gas additive every 40k to clean injectors/fuel system,suprising amount of s... builds up inside.

Service your cooling system every 5 years or 150,000 miles. The GM Dex Cool has a life of 5 years or 150,000 miles which ever comes first. Replace the thermostat also and buy the fail safe thermostat, it cost a bit more but worth it.

Service the engine (spark plugs and wire) every 100,000 miles or till engine management prompt attention. (service engine light DTC code)

Service the transmission every 3 years or 60,000 miles, replace the transmission oil and filter. Transfer case fluid and differential fluid.

Service the engine oil and filter every 6 months or 3,000 miles. Lube Chassis

Service the air filter and cabin air filter, wiper blades every 15,000 miles or once a year.

Follow the service intervals recommended in your manual.

• Engine oil and filter every 5,000 km
• Inspect brake system, steering components and wheel hub every 30,000 KM
• Transmission oil and filter, differential and transfer-case service every 80,000 KM
• Service the cooling system every 150,000 KM or 5 years

These are just the common major service intervals to the drive train to keep the car running to the maximum life expectancy, and replace any worn parts that may affect the safe operation of the car. Good luck and keep me posted, be glad to answer any other questions you may have.

50,000 miles then all its needed is the oil changed. One thing though, the automatic transmissions on honda's don't last as long as the engines. They seem to last about 120,000 miles on most newer hondas. The manual transmissions are bulletproof though. Other than a clutch every 150,000 miles or so a manual transmission accord will run much longer than the body will last if its driven normally.

Replace the timing belt
Inspect the water pump for any evidence of seepage at the impeller shaft seal
Change the oil & filter
Flush the auto transmission (if it has one)
Replace the spark plugs
Replace the spark plug wires if they are older than 5 years old
Replace the air filter
Flush the cooling system, and new coolant
This pretty much covers it, some of the above items may have already been done.
Hope this helps; and Thanks for choosing FixYa.
The graciousness of a FixYa rating would be much appreciated.