you need to pull the valve cover and oil pan and front cover and then you can replace the upper timing chain on the altima but if you are going to do this job i would recommend you replace the gear that hooks the lower and upper chain together this is called the idler gear and it is the one that causes the noise all the time.
No , the 2.5 litre four cylinder engine in a 2006 Nissan Altima has a timing CHAIN
No both the V6 and four cylinder motors of the 2007+ Nissan Altima have timing chains.
Both the four cylinder and the 6 cylinder have timing chains - 09 Nissan Altima
What are the timing marks for a 1997 Nissan Altima gxe 2.4 cylinder
The 2.5 litre four cylinder engine in a 2003 Nissan Altima has a timing CHAIN
The 2.5 liter four cylinder engine in a 2002 Nissan Altima has a : timing CHAIN
The 2.5 liter 4 cylinder in a 2006 Nissan Altima must have a timing CHAIN , because the Gates website does not list a timing belt for it
The 2008 Nissan Altima 2.5 liter four cylinder uses a timing CHAIN
timing chain
The 2.5 litre four cylinder and the 3.5 litre V6 engines used in a 2007 Nissan Altima have a timing CHAIN
It must have a timing CHAIN because the Gates website ( they make timing belts etc. ) does not list a timing belt for the 2.5 liter 4 cylinder engine in a 2003 Nissan Altima
timing chain diagram for 1998 Nissan altima