They are on both camshafts behind the camshaft cover and on the crank.
The Toyota 5VZ-FE 3.4L V6 is the easiest engine to swap into this vehicle. It is found in the T100, 3rd generation 4Runner, and 1st generation Tacoma.
yes!
Yes, you at least have to remove the timing belt from the cam shafts. I do not think you have to remove the crankshaft pully though, unless you intend on replacing the timing belt at the same time, which wouldn't be a bad idea.
wrong timing can cause any engine to over heat. in fact if the timing is off it can cause hundreds of dollars of damage.
lean air fuel mix
under the lower intake manifold
Fuel injectors i'm told. Have same issue and this is what my mechanic told me. 3.0 3vze V6
After checking the manual I dont see any differences. It shows differences at 89 and 95 but noe from 90 to 93. At least not in my book.
12 ft/lbs but its better to use 1/4" torque wrench set at 144 in/lb so you don't over tighten.
Set it with the timing light I recently had to replace my water pump 1991 Toyota pickup v-6 3.0 3vze engine more than i bargained for!!! everything was going smooth....until I moved my cam!!! woops what you have to do is make sure both cams are pointed at the marks/notches on the back timing cover...the left one might be pointed a little more to the left of the notch, and the right one may be pointed a little more to the right. the crankshaft has to be pointed at 0 degrees... the only way to be sure this is done proper is to turn the engine twice... use a socket attached to the crankshaft and turn it past the 0 degree mark once, until it comes back again (the second time) both marks on the cams need to match up exactly the way they started... next set a inductive timing light to number one cylinder, and gap the diagnostic terminal under the hood (use a paper clip and connect the e terminal to the te terminal (check manual for this, some years you must detach a vaccum tube!!!) after this start the truck, put the timing light on the crankshaft, and measure the timing... timing should be 10 degrees BEFORE top dead center (0 degrees) this is at idle (~700) if the engine is turning faster than this, the timing will be different.. best of luck and make sure the terminals are jumped!! otherwise the engine will try and compensate for the difference.
On the 3VZ engine, it is on the bottom of the engine. It is a big job because the oil pump sits on the front of the engine behind the timing belt. It also bolts into the oil pan, which can be a challenge to get on and off: Timing belt: Everything comes off the front (including the fan and cooler) to access this. Mark the teeth, and be careful you don't screw the timing.
it's located under the intake manifold. the knock sensor is most likely ok' the porblem is the short wiring harness from sensor to main wire harness.