There is no warning. Change it every 60,000 miles.
It is true the belt should be replaced at 60,000 mile intervals, but what if you buy a vehicle that let's say has 95,000 miles on it and has had several owners. If you are really cautious you could replace it for piece of mind. But I think in most cases you will find, as long as there are no other issues with the valve train assembly and distributor putting any excess load on the system you might find what I have noticed to be the rule of thumb which is:
When the belt stretches, which it does in time, it will loosen allowing it to slap the inside of the timing belt cover. If this happens prematurely an adjustment is necessary. You will hear a tapping sound that sounds like it is coming from the distributor cap. By taking a stethoscope you can pinpoint it. It is most prevalent with the hood open and sounds dangerously detrimental when revved under no load. From within the vehicle during driving you may only notice it when higher revolutions are made. Considering the price of a new belt compared to the labor, anytime I have had to adjust the tension, unless you know it has been replaced recently, and shows no apparent or unusual wear, I will replace it along with any of the idler bearings that I have any doubt about.
yes it can, I have installed a 95 3.0 in my 87 Pathfinder, I changed out the fuel injection to the throttle body and it runs fine, just needing to do a little adjusting and tuning here and there.
Early warning is a marketing tool. There is no early warning. Most radar detectors just detect the signal.
Distant Early Warning - song - was created in 1984.
Yes you can get an early warning from local athorities
Famine Early Warning Systems Network was created in 1986.
Early warning signs of storms and precautions
prealert
A now bankrupt company called SK Global America makes the Early Warning detectors.
investigative
The ecu (electronic control unit) is the computer for the engine and possible other things depending on the year of the pathfinder. It can control the timing of the engine, when and how much gas to put through the injector, and probably a few other things. It also checks all the sensors to make sure everything is working correctly and to make adjustments. Also at least in the early 90s, Nissan called it an eccu (electronic concentrated control system). On the wd21 pathfinders (80s to 95 i think) the eccu was located under the passenger seat. It can be located anywhere in different cars, sometimes under the hood, underneath panels in the cab, etc.
lreaning adout early warning systems
hypothermia.