Coolant warning light
#21
Gotcha. I've used that stuff in the past, but haven't yet had the need on my current vehicles. It's interesting (ridiculous) that they charge so much for it. It's probably $10 per can, plus a half hour of labor to pour it in.
I'll see if I can dig up a flyer from my dealer offering their valve cleaning service. But, I don't think it lists any actual products, just the issues and potential benefits. And, they're probably not consistent across dealers, anyway. But, it might be interesting to see for others in different regions.
I'll see if I can dig up a flyer from my dealer offering their valve cleaning service. But, I don't think it lists any actual products, just the issues and potential benefits. And, they're probably not consistent across dealers, anyway. But, it might be interesting to see for others in different regions.
#23
What kind of injector cleaner are they dumping in your tank? If you're using Premium fuel, it's my understanding that it shouldn't really need anything else added. If you are using Premium, it's likely that the carbon buildup would be on top of the valves, as our cars are dfi and the detergents don't wash over the tops of the valves (as they do in non-dfi). I think they have to be either manually cleaned, or you could maybe spray some Sea Foam directly into your air intake before an oil change. That type of top-of-valve carbon buildup is apparently very problematic in Audi dfi's and a few other makes, but I was told by one of the Jag techs that because of our engine's dfi design, it hasn't really been too much of an issue.
If the light pops for "restricted performance" again. I'll find some time to tear it down on my own and figure out how it's possible these injectors could ever get "dirty". I'll find another set of injectors and keep cleaning them and swapping them if it's not too much trouble. I'd like to tear into it to learn about it a bit more anyway.
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