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The humming is caused by a " idol control valve" on top of the motor. It controls the amount of air going to the motor, and when it gets dirty or broken the humming starts. You can take it off and clean it out, (with brake cleaner) but my truck had 200,000 miles on it so I got a new one. It's only 2 bolts, easy to get to, the part is about 26 bucks most places.
Good luck.
What else can I help you with?
Is the 2001 Mazda b4000 4x4 an interference engine?
NO, the Mazda B4000 is basically a re-badged Ford Ranger. The 4.0 L engine has a timing chain and not a belt.
Where is the fuel filter on a 1996 Mazda B4000?
In the engine bay
What motor is in a 1995 Mazda b4000?
4.0 l ford engine
What causes the engine of a 94 Mazda b4000 to jerk when accelerating?
Replace the fuel filter.
Why does your 1997 Mazda b4000 over-cool the engine and have luke-warm air from the vents?
The thermostat may need to be replaced.
Where is the oil sending unit on 2000 Mazda B4000?
I believe it is on the drivers side of the engine , below the power steering pump
Will 1998 ranger 4x4 transmission with 3.0 engine interchage with 1994 Mazda b4000 with 4.0 engine?
it depends on the bolt patterns but don't c y not but if its a 4x4tranny it may not if the Mazda isn't a 4x4
What is the spark plug gap on a 1998 Mazda b4000 4 x 4 truck?
The recommended spark plug gap for a 1998 Mazda B4000 is .054"
Need a 2004 Mazda B4000 Truck Fx2 Owner's Manual?
www.promanuals.com/serviceparts/2004-mazda-b4000-truck-owners-manual-automated-download
Where is the engine oil filter located on Mazda Bravo B4000 V6 Engine 2005?
It should be located on the left side of the engine (looking at the headlights), beside the exaust manifold.
Where is the cam sensor location on a 2001 Mazda b4000 truck 4.0l engine?
On a 2001 Mazda B4000 with a 4.0L engine, the camshaft position sensor is located on the front of the engine, near the timing cover. It is typically positioned near the camshaft or the distributor, depending on the specific engine configuration. To access it, you may need to remove some components, such as the air intake or other nearby parts for better visibility.
Where is fuel sending unit on 1994 Mazda b4000 truck?
where i look only year 1994 mazda b4000 truck -fuel sending that find hard time
