Tapping sound when i start the car

[clayton4115]

hi all

 

I have a 2010 Camry Hybrid and for about a few months now once i start the car in the morning, i.e a cold start, i hear a tapping sound for the first few months, its like it is only apparent when the engine is cold, once the engine warms up then the sound goes away, a few months back i got a check engine light on and with the scanner the code read p0171 however this code would also give you poor FE which i continued to get great FE so i could not work that out, however the inbuilt dash FE was giving me higher FE at 7.2l/100  but when i went to fill up i was doing my own manual calculations and getting 6/l confirmed by my other scangauge that showed my FE was around 6.

 

but then after a while that light went off never to return,

 

I have had no other problems with the car and i am getting great FE with it, however this is the only thing that is bothering me.

 

here is a youtube video of it, tell me what you think.

 

 

 

[trentmeyer23]

I would advise taking it to a mechanic to correctly diagnose. That is not one of the common start up rattles.

[clayton4115]

well it is due for a service next month, will show it to them then. 

[trentmeyer23]

Hopefully; for your sake, no further damaged is caused during that time.