Rattle during start up
02-19-2018, 02:47 PM
#1
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Rattle during start up
Hey guys,
I'm back with another question. Whenever I start the SQ5 after it has been sitting for a long time I can hear what seems to be a rattle coming from the engine. Ive looked around it now a few times and its not a heat shield or guard loose. This only happens when the car is all the way cold and only lasts a few seconds then its gone. Any thoughts or ideas befora a trip to the dealers? thanks
I'm back with another question. Whenever I start the SQ5 after it has been sitting for a long time I can hear what seems to be a rattle coming from the engine. Ive looked around it now a few times and its not a heat shield or guard loose. This only happens when the car is all the way cold and only lasts a few seconds then its gone. Any thoughts or ideas befora a trip to the dealers? thanks
02-20-2018, 03:48 PM
#6
on my SQ5 it happens every morning. Less than 2 sec of cam chain rattles. After that its all good. Usually i would have fix it myself by now, but damn thing,its facing the rear. Doing it blind.
02-20-2018, 05:11 PM
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02-20-2018, 05:12 PM
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02-20-2018, 09:29 PM
#10
Normal, no. The chain tensioner has been revised. Old one was losing oil or oil was leaking back out when engine has not been operating for a while ( in our case overnight). Once engine cranks, oil pressure is build back up in the tensioner again. That 2 second is chain slapping. I use 0w-40 oil and it only makes the rattle in winter. Summer time I guess the oil Flows better or thinner and hits the tensioner quickly that it doesn’t make the noise.