Question about 2004 Nissan Frontier
If you have the 3.3 V6 it's the hydraulic lifters. Mine does it to & I'm a hair under 100k. Apparently there was a TSB about this at some point but from what I read the noise is very common and won't cause harm. I've also read that people have had the lifters replaced and the noise eventually came back. What I did was add a measured amount of Sea-Foam to my oil about 100 mi before I change it. You add 1.5 oz for every quart, the 3.3 v6 holds 3.5 quarts, 1.5 x 3.5 = 5.25 oz. I then replaced the oil with full synthetic oil and the noise at start up is gone for me. I do my own changes so I plan to do this every time. 3.5 qts of oil seems a bit light for a 3.3 liter engine(the 4 cylinder takes more) My best guess as to the cause of the lifter noise could come from minor deposit build up accelerated over time by the engine circulating a small (IMO) quantity of oil more often. There's a great write up on properly Sea-Foaming your engine here: http://ls1tech.com/forums/general-maintenance-repairs/534376-how-seafoam-your-car.html
This is for GM engines so pay no attention to the measurements, only procedures.
Posted on Jun 06, 2014
On cold start , valves , oil pump weak , what other info avail?
Posted on Jul 16, 2009
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Posted on Jan 02, 2017
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