Hi:
2010 Toyota Yaris 118k miles
A AAA Mechanic inspected my vehicle after I mentioned a rough idle and one thing that was ruled out was having worn-out engine mounts. Having new engine mounts did help with reducing the engine from shaking and feeling it in the car, but then at times, there are still some excessive vibration when at a stop light or left on P. The AAA mechanic suggested possibly replacing the fuel injectors which might solve the case, which my state tax refund would probably go to. So my question is, will this possibly solve it? And if so, new or remanufactured fuel injectors?
I should specify: New throttle body, new spark plugs, air filter is still clean, new fuel pump.
The AAA mechanic suggested possibly replacing the fuel injectors which might solve the case,
Sounds like the AAA mechanic is just guessing. Did he bother scanning for codes and analyzing live data to come up with a reason for that diagnosis?
He said he did some drip test and confirmed that the car was prob not running as efficiently as possible compared to how much it's supposed to spray? He mentioned using Techron to try and make it run better as well.
If the injectors were drippy I'd expect that to show up in fuel trims. However Techron might help if you do have dirt in the injectors and is something inexpensive to try.
I guess it's been a few months since I had this inspection done and have used Techron. The car still has that rough idle. I did at one point look at live data and it was positive but not more than 10% I think? I can't recall much about what this mechanic said in detail but I think they confirmed that it was running leaner. but I'm not sure if this information helps.
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Hi Chuck:
I took the car to another mechanic and they did another test for all the injectors and reported that the fuel injectors were performing well. I informed them that there was still an issue with the rough idling and they mentioned that some cars will just have some rough idling and that replacing the engine mounts is supposed to solve the issue. The mechanic stated that OEM engine mounts are intended to reduce the engine shake by 50% at least so it is doing its job. Then, the mechanic did say that there was some vibration going on and that they suspected maybe it needed to have fuel induction done. Not knowing what it was and while rushing at work, I agreed to it ($179). As I'm finally free to research what it is, does it sound like I needed it? Not sure if it matters, but mph reported on Google Maps is a few mph lower than on the speedometer.
Well let us know how it works out. I have my doubts about "fuel induction service" and it seems the guys you're going to are guessing rather then troubleshooting.
Well let us know how it works out. I have my doubts about "fuel induction service" and it seems the guys you're going to are guessing rather then troubleshooting.
Just wanted to provide an update:
The car seems to have more acceleration. As far as the idle, it is still happening but I haven't driven it too much for a comprehensive review. I am just going to live with the rough idling unless something goes broke!
Have you cleaned the idle air control valve?
I could tell when my 98 4Runner's got dirty, because after it was warm, when I would come to a stop it would idle rough, sometimes like it was about to shut off.
If the mechanic completed a fuel induction cleaning, would this cover cleaning that specific area too?