Scotty,, I am an expat working in Saudi Arabia

I have a rav4 2012 , mileage 115,000 km , i bought brand new ,,never had issues with it before. Recently I started to here very low pitch knocking on idle ,, to hear the sound u have to close the windows n put off ac (On Idle) . When I sent it to the dealer , they ran a computer diagnosis , they told me that the injectors are clogged. Can injectors cause a slight low pitch knocking sound on idling. You cant hear the sound while driving as i think its overtaken by other noises from the street. we cleaned the injectors, tested again, still the computer says they are clogged, guess i need to change them. but not yet. I sent it to a local mechanic , he changed for me the balance shafts , changed oil. For the first two days , the knocking sound was gone))) then it came back again, same knock sound like before in your experience with rav 4 , what this could be, i was changing oil every 3500 miles and regular with Toyota original oil filter so unlucky with this car((( Tks Marvin

Comments (2)
Techsus
Techsus

Yes, clogged Fuel Injectors can cause that. But, I don't think Toyota's to blame here. You're overseas? The RAV4 is mighty fine vehicle. Before assigning blame to the car, can you guarantee the fuel you've installed is 100% clean? Countries have different standards for fuel additives and purity-- you're in Saudi Arabia? Do you have access to Lucas Fuel Additive injector cleaner? Try cleaning Injectors, again. Buy the best gas you can. If you can find Lucas, possibly add w/ each or every-other fill-up. Why not join our Rav4 World Forum, it's the best RAV4 Forum in the world. My 1998 RAV4 is built like a tank. Join and read old posts, see if other GEN-3 RAV4 owners experience same! Here's Scotty: