Toyota Innova Crysta: EGR coolant device fails, now leak in 2 cylinders

In this situation, it is not just ideal but essential for Toyota to replace the entire engine and EGR coolant system.

BHPian bravo82in recently shared this with other enthusiasts.

Posting on behalf of an office colleague who is facing issues with his Innova Crysta ( Aug 23 model, odo: 12500 kms)

The vehicle encountered significant heating issues, indicated by an error code for high coolant temperature. Coolant loss was detected during the drive, necessitating water replacement every 40 km until arrival at the Toyota service station.

 

The diagnosis revealed a malfunction in the EGR coolant device, which led to coolant loss. Compression tests showed leaks in 2 out of 4 cylinders.

Considering Toyota's esteemed reputation as a premier automaker, it is imperative that this technical fault be addressed with the utmost seriousness. Although the vehicle is under warranty, opening the engine head will severely compromise the vehicle's longevity, increase the likelihood of recurring service visits and future resale value.

In this situation, it is not just ideal but essential for Toyota to replace the entire engine and EGR coolant system. As loyal customers who have invested in the Toyota brand, we would feel profoundly betrayed if the company resorts to a mere partial repair instead of a comprehensive replacement.

Request guidance from follow Bhpians and way forward. The Vehicle is at Pioneer Toyota, Patiala.

Here's what BHPian Sankar said: 

While not common it is not an isolated issue either. I am aware of this happening in the GDFTV engine but that was a few years ago. Since the failure is at the EGR cooler the coolant can get into the engine via the same route the exhaust gas is recirculated into the cylinders and cause damage. One of the reasons why I got the EGR blanked at both sides - the exhaust manifold and intake manifold.

If there is damage in the cylinder/head (as indicated by compression test) they should replace the engine as a whole unit. So if they call it an isolated issue be known that it is not.

Meanwhile, here's what BHPian dhanushs said about this matter:

Feel sorry for your colleague. It's unfortunate but can happen. Do they have a diagnosis on where the failure has happened?

In any case, if there is a damage to the engine block, better to have a full sealed engine replacement.

Check out BHPian comments for more insights and information.