After 2002 Altima offers two types of engine: the new 4 cylinder 2.5 L QR model engine which is fairly powerful (175 horsepower) and, I believe, one of the best engine in its class the 3.5L V6 VQ model engine with 240 horsepower. The same V6 model as in in the Nissan Maxima, Pathfinder and Murano.
Both engines feature continuously variable valve timing using a silent chain instead of timing belt. Throttle cable is gone - the throttle operates electronically by wire based on gas pedal sensor readings. This design provides smoother transmission shifting and lower emission.
The 2007 Nissan Altima 3.5L Sedan, has a Timing Chain, and an Ignition Coil Pack. NO DISTRIBUTOR.
SOURCE: WHEN TO CHANGE TIMING BELT OR CHAIN AVALANCHE 2007
This has multiple chains and they never need changing. At 70,000 miles you should of had ALL fluids changed at least once
SOURCE: 02 altima 3.5l-timing chain-tuogh job?what should
I would not do this job myself if I were you unless you are very good at following directions and you have done things like this in the past. . A v6 nissan engine is very difficult to time properly. I you are even one tooth off you can bend a valve or ruin the ignition system. If you are going to do it yourself make sure you have all guides and all inserts on before setting timing.
SOURCE: does a 1999 nissan altima gxe have a timing belt
I think it has a chain. look where the timing chain/ belt should be. if there is a large plastic cover, it has a belt, it its a aluminum cover, it has a chain. there is no replacement interval on a chain.
Unfortunately, we do not have a repair guide for your 2007 Nissan Altima 2.5L SFI DOHC 4cyl
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