Timing Belt 3.4

So, I have 51,000 miles on '04 crew, 4x4, TRD, Sr5, 3.4 motor.....Familiar with Factory Scheduled Maintenance, but a 12 year old timing belt? Not 90k yet or in near future.

What say you? Does the belt need changing due to age of belt.

Chains rock , belts, not so much.

Thanks for input!

 

Most timing belts do have a lifespan of mileage or time. Whichever comes first. I believe at 12 years you have exceeded the time limit and I would suggest changing the belt asap. JMO.

 

I'd change it, if I recall the 3.4 is an interference engine. Saving a dime by not changing the belt now can cost you a lot more later on if it breaks.

 

Wrong, the 2.7 is interference, not the 3.4.

 

It's actually a non interference engine

 

NVM. I saw the quote right after your's. Sorry bout the repeat

 

just like anything rubber does wear out and dry rot from non-use. congrats on only going 4k miles per year.

if you want pull the black cover off the front of the engine and have a look at the belt. if you question it then maybe get it changed. but if you don't do it yourself it's going to be in the $700+ range

 

I replaced my timing belt on my 1998 TRD. It had about 88,000 miles on it. Before I installed the new belt (Toyota OEM) I compared them: Lengths were the same, and not cracks, discoloration, or other VISIBLE signs of wear. I did it for peace of mind because when I'm off road its in the most remote areas of Nevada and Utah.

 

My 01 still has its original one. 200k miles and it looks fine. However, I believe I have a pulley thats going out so I might be having to replace it soon

 

242k, 100k of my own miles, never replaced mine but its been on my mind as I think my water pump is finally starting to wear out

 

I could tell when it was time to change my water pump when there was coolant all over the ground underneath my truck. So I just did the whole timing belt kit including thermostat & actuator.

 

Luckily, it is a non interface engine so if it breaks it won't do any damage to the engine. Worst it would do is bust up the plastic cover if it came apart and whipped around in there a few times.

 

Screw the timing belt. Its fine. Lets see that 12 yr old truck with only 51k on it. As much as I know that mileage doesn't kill these trucks and I plan on keeling mine for decades, I love seeing older low mileage ones in great shape.

 

Change it before it fails and replace the water pump while you are in there. I neglected to change mine timely and paid the price.

 

Any way to check the condition of the water pump to tell if you need to replace it? Other than coolant on the ground of course... maybe pull the cover off and checking for a leak? My plan is to do the whole shebang once the water pump shows signs of failure.

 

I know most water pumps have a "weep hole" by the shaft that starts to dribble as it gets bad, mine just seems to sound like the bearing is starting to go