A whining or buzzing type noise may develop from the timing chain area caused by excess slack in the secondary timing chains. Nissan has issued a service bulletin (NTB09-128) regarding this issue. Replacement of both secondary timing chains and their tensioner shoes will be necessary to repair this concern. As part of this repair, the engine oil and filter should also be replaced.Google+
Car Problem Reports
Nissan Frontier Noise From the Front of the Engine
Nissan Frontier Problem
Engines Affected: 2.4L 4 Cylinder, 2.5L 4 Cylinder, 3.3L V6, 4.0L V6, V6
Average Mileage: 84,885 mi (3,000 mi - 225,000 mi)
I first started noticing this whining/whirling noise at about 60,000 miles. It seems to have got worse over time. I recently visited a local Nissan dealer and they told me there was a service bulletin put out stating the problem is probably caused by a secondary timing chain/s. The dealer quoted me a cost of over a thousand dollars! From what I understand they are not over willing to help out those in need, we'll see. I'm going to try and get them to fix it, if not I will take other action. I'll be a horses ***, if I'm going to pay for another bad design flaw on Nissan's part, NO WAY NO HOW. It's time they started taking responsibility for their lack of quality in todays vehicles. I'm so disappointed in Nissan, almost to the point of disgusted. I don't think I will ever buy another Nissan product ever. What ever happened to this company!
Visitor, 2006 Nissan Frontier, 4.0L V6, 52,450 mi
I also have the whining noise in the front of the engine. It does not occur when I initially start up the engine when its cold. After about 5-10 minutes the noise begins and gets louder and louder. I took it into 104th Nissan and they said it was the alternator. The cost to repair??? 605.00. I purchased a alternator and did it myself at a cost of 158.00. The very irritating noise is still there so 158 down the drain. I like many will never buy another Nissan vehicle. They do not stand behind their products. I have also changed the serpentine belt, the idler pulley and the other one. 52000 miles.....We all need to get together and file a class action lawsuit against them
Visitor, 2005 Nissan Frontier, V6, 68,000 mi
Somewhat high-pitched whine from engine - also - distinct knocking during acceleration when cold
Visitor, 2007 Nissan Frontier, 2.5L 4 Cylinder, 63,500 mi
Whining/rattling sound from the engine on start up and while in idle. Noise is not present while driving.
it only happen when the engine is hot,just a little whinning sound fronm the front and it will go away when i rev it.
Visitor, 2007 Nissan Frontier, 4.0L V6, 80,000 mi
not fixed out of a low warranty , 1500.00 bucks to fix, not buying another Nissan
Visitor, 2007 Nissan Frontier, 4.0L V6, 65,000 mi
Timing chain fail.
Visitor, 2000 Nissan Frontier, 2.4L 4 Cylinder, 75,000 mi
The noise strted from 3000 miles
Visitor, 2008 Nissan Frontier, 4.0L V6, 175,000 mi
Loud clicking noises in front of engine. First, the passenger side and now both sides.
Visitor, 2006 Nissan Frontier, 4.0L V6, 144,000 mi
I am told that the timing chain guides are wearing down and thus allowing metal to metal contact. Repair shop recommended replacement of three timing chains, tensioners, guides, removal of the oil pain to clean out the residue and possibly replace the oil pump. Approximate cost = $3000!!