I bought this truck with the 3.0 V6 wanting dependability and high utility I
wanted reasonable milage and power. I had did not expect high performance
from this truck.
I have had few problems; nothing that stranded me. Maintenance parts are
reasonably priced and available. I can depend on my truck to get me where I
need to go day in and day out.
The only real disappointment has been the performance of the 3.0. The
mileage has been good but the acceleration is not much beyond the 2.3. I
also have always been forced to use premium gas if I want to avoid serious
The functionality of the super cab is easily my favorite feature. The gas
mileage has also been pleasing.
I can depend on my truck to get it done. It's kind of like McDonald's. It may
not be your favorite burger but you know what you are going to get every
As I understand, the new 3.0 has the HP of what the old 4.0 had while
offering similar mileage. That solves my picked concern.
Improved carge tiedowns in the bed would be nice.
Engine knock is a very specific problem where gasoline "detonates" from pressure and not spark ignition. This usually happen when the air/fuel mixture is too lean (too much O2) or the ignition timing is too far advanced.
There is a distinctive "knocking" noise associated with this problem. The bast way to describe the noise is the sound of spray paint can being shaken during hard acceleration.
The problem is most often noticed during hard acceleration AND hot weather. So during winter (and cold weather) the problem might be audible (and not even exists).
The short term solution is to use premium gasoline. If the use of premium gasoline defeats the engine knocking noise, that is 100% confirmation that it is indeed engine knock (and not other similar sounding problem).
Modern cars have engine knock sensor, and if engine knock is detected the timing is retard to prevent engine knocking. If your car has engine knock sensor and yet suffers from this problem it is very likely the knock sensor is defective. Otherwise the problem might be one of many things:
(a) A/F mixture too lean (bad o2 sensor?)
(b) spark plug too hot
(c) ignition (spark) timing too advanced
(d) MAP / MAF sensors - defective
(e) low fuel pressure
(f) dirty fuel filter
(g) vacuum leak
(h) engine (water) temp too high
(i) air temp too high
(j) octane too low
(k) bad fuel injector
(l) carbon hot spot
(m) failed knock sensor
Good luck...Possible Solution
--- > The mileage has been good but the acceleration is not much beyond the 2.3. I also have always been forced to use premium gas if I want to avoid serious knocking.
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