Infiniti J30 Repairs
Is there a way to resolve intermittent engine knocking? I hear this knocking about 75% of the time, only in drive and reverse, never in park or neutral, and only with the a/c off. It's a 96 J30. I just had the 60k service performed by the dealer (new plugs, reset timing) and an oil change (Syn Mobile 1, 10W30) done by someone else. They (Inf. dealer) also did an induction cleaning. Ever since these services, the car has a noticeable knocking sound coming from the engine. Is it bad gas (I always use Amoco 93) or did the dealer f up my car? I've been using synthetic oil for about 2 years so I can't imagine the oil causing the pinging noise. One former mechanic said if the dealer didn't evacuate the system properly after the induction cleaning, it could have bent a rod since that cleaning compound is not combustible. Those were his words, although I'm not sure what he means by the "rod". The experience at this Inf. dealer was horrible. I'd prefer to not go back to this dealer. They deny everything even though it seems I received my car in worse condition than before. It never "knocked" before these services. I can see vibrations occuring around one spark plug when I open the hood, left rear plug. I'm guessing that's where the knocking is coming from. Any ideas on the engine knocking? Thanks
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