Question: Does My Toyota Have An Interference Engine?

What cars have interference engines?

Try watching this video on, or enable JavaScript if it is disabled in your browser.Audi.

• 1.8L 1.9L Interference.


• 2.5L 325I 525I Interference.


• All except SLX Interference.


• 1.4L, 1.5L & 1.6L Interference.


• 1.3L 128 Series Interference.


GM and Saturn.

GEO.More items….

What does a non interference engine mean?

By contrast, in a non-interference engine, the piston does not travel into any area into which the valves open. Interference engines rely on timing gears, chains, or belts to prevent the piston from striking the valves by ensuring that the valves are closed when the piston is near top dead center.

Does Toyota Tundra have a timing belt or chain?

the 2008 toyota tundra has a timing chain for all it’s v6 engines. the v8 engines vary – the 4.7 v8 has a timing belt, but the 5.7 v8 has a timing chain. this changed in the 2010 models, which all have timing chains. … and the 5.7l v8 uses a timing chain.

Why do they make interference engines?

It broke while the engine was running, so the pistons are in motion. Because the timing chain/belt is broken, the valves aren’t moving, which means some of them are stuck in the open position. If the piston travels far enough in the cylinder to actually hit the open valves, that’s an interference engine.

How much does it cost to replace timing belt?

The majority of the cost is labor, because many parts need to be removed from the engine to gain access to the belt. A typical timing belt will only cost between $25 and $50, but the repair takes at least a few hours. The labor cost to replace a timing belt can range from $200 – $900.

Will a broken timing belt destroy my engine?

The timing belt is a rubber belt that synchronizes the actions of both the camshaft and the crankshaft to keep your valves safely moving and keep your engine in good condition. If the timing belt that is a key part of the internal combustion engine is broken, this can cause the broken timing belt to destroy the engine.

Is the Toyota 3.3 an interference engine?

To the best of my knowledge, the 3.3L 3MZ-FE V6 with VVTi engine is an interference engine. The timing belt should be changed every 90,000 miles.

What happens if a timing belt breaks on a Toyota?

So, if you have an interference engine and the timing belt fails, the camshaft is not turning, and the valves will not open. The piston will still rise into the cylinder and then it will collide with the closed valve. This could damage the cam heads, the valves, the pistons, and essentially destroy your entire engine.

Is the 4.0 SOHC an interference motor?

This may also cause one of the timing chains to break (typically the front left chain). Fortunately, the 4.0L SOHC is not an interference engine so a timing chain failure won’t bend the valves. But it does create an expensive repair for the vehicle owner.

Does PT Cruiser have interference engine?

The PT Cruiser 150hp engine is always a non interference engine. If you have seized camshafts is more likely due to poor lubrication/low oil pressure. The seizing of the camshaft is what is breaking the belt in this case.

Is the Toyota 5.7 an interference engine?

With all that said some of the Toyota engines are “non interference” engines. This means the valves and pistons will not hit each other should the belt or chain break making a break less of a catastrophe. If anyone needs some tech help with this, pm me.

Are interference engines better?

In comparison to non-interference engines, interference engines “breathe” better because the valves can open earlier, close later and open wider. Interference engines can also achieve higher compression ratios. These designs extract more power, use less fuel and generate fewer emissions.

What happens if a timing belt breaks on a non interference engine?

If the timing belt snaps, they run into each other, causing bent valves (most common), cylinder head or camshaft damage, and possibly piston and cylinder wall damage. … In a non-interference engine, the pistons and valves don’t occupy the same space, so if the timing belt snaps, no valve or cylinder damage occurs.

Does the Toyota 5.7 have a timing belt?

The 5.7L engine (3UR-FE) does have a timing chain, while the 4.7L engine (2UZ-FE) uses a belt. Generally, timing chains are designed to be maintenance free. If your service manual does not recommend a replacement interval, you don’t need to plan on replacing the timing chain.

What Subaru engines are interference?

SUBARU vehicles manufactured up to and including 1996 typically non-interference SUBARU engines. The 1996 2.5L phase I DOHC engine is likely non-interference piston to valve, but interference between intake and exhaust valves.

Does my car have an interference engine?

You can check to see if your engine is an interference type or not by going to, and click the “Aftermarket” tab. Under “Cars & Light Trucks” section, click “Belts, then click “Timing Belts.” Click the link that says “Got an interference engine? Find out now” and chose your vehicle and engine.