A popular tiny SUV, the Toyota Rav4, has been manufactured since 1994. However, one thing hasn’t changed even though it has undergone several alterations over the years: the timing chain cover leak.
Owners of the Rav4 have been dealing with this issue for years, and there doesn’t appear to be a solution in sight.
In this article, find out what causes the leak, what are the symptoms of the leak in your RAV4, and what can you do to stop the timing chain cover leak.
What is a Leaking Time Chain Cover in Toyota RAV4?
The timing chain is shielded from dirt and oil leaks by the timing chain cover, which is close to the engine.
This cover may get damaged or fractured with time, enabling oil to seep into the timing chain region. This may seriously harm the engine and result in a high repair expense.
You could have encountered a timing chain cover leak before if you owned a Toyota RAV4. It is a very common problem.
This might be a significant issue since it could lead to an overheated engine that breaks down.
It’s crucial to have your vehicle inspected by a professional as soon as you suspect a leak.
What Are the Symptoms of a Leaking Chain Cover in Toyota RAV4?
In total, there are 4 symptoms you can encounter if your RAV4 has a leaking chain cover.
Keep reading to find out all about them!
Symptom #1: The Middle of the Car is Leaking Oil
The timing cover may occasionally be broken, especially if it is made of plastic.
A broken or timing cover gasket may be to blame if you see oil dripping from the front center of the engine.
Symptom #2: Engine Sputters
The motor running roughly is another typical symptom of an issue with the timing cover.
Debris and contaminants can enter the engine through a broken timing cover that does not adequately seal with the engine block, especially in sensitive places like the crankshaft or camshaft.
The engine may run roughly as a result. On the other hand, the motor might completely fail if the issue is not resolved quickly.
Symptom #3: The Engine is Making a Knocking Noise
You may hear a banging noise close to the front of the motor when the timing cover is loose.
If you hear this noise, drive the car home as soon as you can.
Open the hood when you get home and check directly behind the radiator fan. It’s most likely the timing cover that is loose if you notice a flat metal plate that looks swaying.
The sound is caused by the engine block rubbing against something.
Avoid starting the engine once again if this is happening.
Make contact with a nearby ASE-certified mechanic so they can examine the issue and, if necessary, replace the timing cover.
Symptom #4: Check Engine Light is On
The purpose of the timing cover is to seal the engine and prevent oil or pressure leaks.
Sensors in the motor will cause the Check Engine Light to turn on on the dashboard if a pressure or vacuum problem arises.
It is suggested to take this light carefully whenever it illuminates since it might indicate a significant issue with the engine.
Can You Drive RAV4 With a Broken Timing Chain?
The answer is no if the timing chain has broken in your RAV4!
With a broken timing chain, your RAV4 is impossible to drive.
Timing chain performance is crucial for effective and correct engine running.
The automobile won’t start if the timing chain malfunctions, which might leave you stranded by the side of the road.
No matter what kind of engine your car has, a defective timing chain will cause it to switch off and cease operating right away.
On the other hand, if you experience leaking from the cover, if necessary, you may continue driving with this leak if you keep an eye on your oil level.
What Causes Timing Chain Cover to Leak in Toyota RAV4?
The timing chain cover may leak for several causes.
It may result from a bad gasket or seal, or the cover itself might be damaged.
In some circumstances, the issue can be related to the engine itself.
It’s crucial to get the problem corrected before it causes any further harm, regardless of the reason.
Repairing a timing chain cover leak may not be too difficult, depending on the source. Most mechanics should be able to quickly and efficiently fix the problem if it just requires changing a gasket or seal.
How Do I Stop the Timing Chain Cover on my Toyota RAV4 from Leaking Oil?
Due to its size, unusual design, and numerous joints that need to be sealed, the timing cover is a notorious leak spot on many cars.
Ensure the oil leak isn’t genuinely coming from this seal before removing the timing cover.
If you can demonstrate that the leak is coming from the harmonic balancer seal rather than the timing cover gasket, you can save a ton of effort and money!
That is because there isn’t pressured oil behind the timing cover, which is only a cover, leaks are frequently quite gradual.
Beyond a low oil level, the actual risk of driving with a timing cover oil leak is putting engine oil on your belt.
Your motor belt can soon deteriorate from the oil, which may also cause it to slip on the pulleys it drives, creating a new series of issues that might leave you stranded and harm your engine.
Restoring or replacing the gasket are the only two solutions for a timing cover oil leak.
It’s a beautiful opportunity to replace the valve cover and oil pan gaskets, as replacing the timing cover gasket sometimes necessitates removing both.
Generally speaking, completing this task will leave your engine fully leak-free and in brand-new condition!
A timing cover replacement typically costs roughly $1835. The typical labor expense ($1085) and typical component expense ($750) are included.