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Discussion Starter #1
Has anyone out there with '06 Tacoma/AC/2.7L/4AT/2WD ever experienced annoying engine clicking or knocking noise coming from engine or underneath the cabin? I've been hearing the noise and complained about it to Toyota Executive office in California since I bought the truck back in Feb this year. They told me that a fuel line problem existed in March but never contacted me again when the TSB was issued in May. I found about the TSB in this forum, thanks to Ampeg's thread. I finally took it to my local dealer this week and they installed a fuel return hose but the noise never went away. It is hard to describe the noise but it sounds as if my truck is dragging a steel chain all the time. The noise is especially annoying when the engine is still cold but because of the constantly revolving engine fan even from the moment I start engine despite the coldest temperatures just prevents it from fully warming up even after 20 miles of driving to my office every morning. How come the fan is not controlled by the thermostat like other cars? This noise stops only when I remove my foot from the gas pedal. It also emmits another mechanical noise when it's very cold which sounds like a playing card against the moving bicycle wheel spokes or someone trapped in the engine room is banging the engine block. To be honest with you, my 10 year old Ford Taurus runs better and I'm one dissapointed owner of Tacoma truck that I was so excited to buy 8 months ago. Any advise on these issues will be appreciated.

 

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get under there and see if the lines are touching the body anywhere. that's a problem that GS300/400/430's had back when i worked at lexus. it sounds just like you described. :waytogo:
 

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junk747 said:
Has anyone out there with '06 Tacoma/AC/2.7L/4AT/2WD ever experienced annoying engine clicking or knocking noise coming from engine or underneath the cabin? I've been hearing the noise and complained about it to Toyota Executive office in California since I bought the truck back in Feb this year. They told me that a fuel line problem existed in March but never contacted me again when the TSB was issued in May. I found about the TSB in this forum, thanks to Ampeg's thread. I finally took it to my local dealer this week and they installed a fuel return hose but the noise never went away. It is hard to describe the noise but it sounds as if my truck is dragging a steel chain all the time. The noise is especially annoying when the engine is still cold but because of the constantly revolving engine fan even from the moment I start engine despite the coldest temperatures just prevents it from fully warming up even after 20 miles of driving to my office every morning. How come the fan is not controlled by the thermostat like other cars? This noise stops only when I remove my foot from the gas pedal. It also emmits another mechanical noise when it's very cold which sounds like a playing card against the moving bicycle wheel spokes or someone trapped in the engine room is banging the engine block. To be honest with you, my 10 year old Ford Taurus runs better and I'm one dissapointed owner of Tacoma truck that I was so excited to buy 8 months ago. Any advise on these issues will be appreciated.

Well if it was my truck I would tell them to get me a new one I would raise hell also try to go somewhere else dif. dealer or second opinion or buddy that can hear the noise and tell you what is wrong with it.. To me it sound like a pulley or your fan clutch "hit the fan" LOL sorry for the joke anyways someone here might have had the same problem... if there is anymore if of what it is doing you have to let us know and WELCOME TO CT :headbang:
 

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Discussion Starter #4
Thanks for a prompt reply and tip. But I have no idea on where to look. Could you tell me the location?
 
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