Originally Posted by hillman
Trav, reliability statistics (on TrueDelta for example) seem to indicate that other people don't all have the same injector problem on this model / year. This is one of the most reliable engines out there according to this, and few reports of these issues are on forums, etc..
My understanding is the injector has to work harder with E85 (has to put more fuel in the cylinder per power stroke). Also I have had gum issues with ethanol gas in other engines. However if it's a heat thing, E85 ought to burn cooler by my understanding.
Would you think it wise to switch to the lowest ethanol gas I can find?
If it's not the E85, is it possible there is something else I am doing that makes me more vulnerable?
Finally, would an additive such as Gumout or Techron help? My understanding was that these are designed to clean the backs of valves in vehicles with port injection, and don't do much in a direct injection engine.
Thanks
Matt
The engine is a great engine but that has little to do with the injectors. The heat issue comes in 2 parts see THIS thread.
You have internal heat issues and external issues caused by heating from the head causing the coils to overheat and stick or get permanently damaged.
Lots of idle time and occasional use where the fuel sits inside the injector for long period of time can be problematic for any injector but especially for DI engine
This particular injector was not used very long before it was replaced with another model with better reliability, with certainty they replaced yours with the newer version.
I would run E10-E15 and use a bottle of cleaner every 3-5K, use Gumout, Techron, Redline but following that put a can of cheap Berrymans Chemtool in the tank, its the best for gum and varnish. Basically you want to address both types of deposits, hard carbon and varnish, I have not found any single product that addresses both as well as specific use products.
These are only my observations and from conversations with Bosch and Asnu. Most injectors can be successfully cleaned, the ones that cant are quickly diagnosed and eliminated from the set, you cant fix broke or resurrect the dead.
Trav, reliability statistics (on TrueDelta for example) seem to indicate that other people don't all have the same injector problem on this model / year. This is one of the most reliable engines out there according to this, and few reports of these issues are on forums, etc..
My understanding is the injector has to work harder with E85 (has to put more fuel in the cylinder per power stroke). Also I have had gum issues with ethanol gas in other engines. However if it's a heat thing, E85 ought to burn cooler by my understanding.
Would you think it wise to switch to the lowest ethanol gas I can find?
If it's not the E85, is it possible there is something else I am doing that makes me more vulnerable?
Finally, would an additive such as Gumout or Techron help? My understanding was that these are designed to clean the backs of valves in vehicles with port injection, and don't do much in a direct injection engine.
Thanks
Matt
The engine is a great engine but that has little to do with the injectors. The heat issue comes in 2 parts see THIS thread.
You have internal heat issues and external issues caused by heating from the head causing the coils to overheat and stick or get permanently damaged.
Lots of idle time and occasional use where the fuel sits inside the injector for long period of time can be problematic for any injector but especially for DI engine
This particular injector was not used very long before it was replaced with another model with better reliability, with certainty they replaced yours with the newer version.
I would run E10-E15 and use a bottle of cleaner every 3-5K, use Gumout, Techron, Redline but following that put a can of cheap Berrymans Chemtool in the tank, its the best for gum and varnish. Basically you want to address both types of deposits, hard carbon and varnish, I have not found any single product that addresses both as well as specific use products.
These are only my observations and from conversations with Bosch and Asnu. Most injectors can be successfully cleaned, the ones that cant are quickly diagnosed and eliminated from the set, you cant fix broke or resurrect the dead.
