Lose of power a little black smoke lose of fuel milage

Check your air filter. Might be clogged / dirty. Replace if needed. Loss of power is due to leaky fuel injectors or fuel pressure regulator.

Could be to little fuel, clogged fuel filter. Or to much fuel, fuel regulator is bad. dumping fuel in the intake. This would cause black smoke when taking off or at start ups.

black smoke is excess fuel entering the cylinders. and does not burn completely. poor fuel milage is also a complaint of black smoke from tailpipe.check your O2 sensor, your MAF sensor and for vacuum leaks. Could be air intake check your air filter, but probably the O2 sensor.The O2 sensor. located on the exhaust pipe prior to the muffler, looks like a spark plug with a wire that comes off the tip and leads into the wire loom.But the 02 sensor will turn the check engine light on.other intake components like sensors, fuel injectors and the fuel-pressure regulator.should be checked. good-day!

black smoke is coming from exhaust possible causes--- excess fuel enters cylinders and does not burn completely. poor fuel milage is also a common complaint, when black smoke comes out tailpipe its running to rich!! This can be caused by anything from a computer malfunction to a leaking fuel injector. A possible fix would possibly be a tune up or carburetor/fuel injection work. run some good injector cleaner in it, it may fix the problem. but if not check it out further. good-day !!

I have an 01 Impala 3.8 engine. At first start-up white smoke is seen, smells like raw gas, and tail pipe is black as coal. Fuel milage isn't good either. Would the regulator be bad?

black smoke is the vehicle is running rich, to much fuel. excess fuel enters the cylinder and does not burn completely. poor fuel milage is also a common complaint when black smoke comes out tailpipe. ( its running rich ). have a good day !

Black smoke is a sign of an overly rich fuel/air mixture. White smoke is a sign of coolant entering the combustion chamber. Most likely you have a blown head gasket. Other symptoms are loss of coolant with no apparent leak, loss of power, miss, oil level overfull, a white foamy substance on the underside of the oil fill cap. Stop driving this truck until you find the problem. Driving it with a blown head gasket will destroy the engine. A compression test will verify this.

black smoke is an indication of to much fuel being burned. if it is fuel injected i would start with the fuel pressure regulator

if you look at the reverse of the fuel pump you will see a 13mm nut holiding a 10mm bolt. undo the 13mm lock nut and turn the 10mm in or out to adjust the mixture, this is easy as you can run the engine with the adjuster lose so you can high rev it and adjust all the black smoke away. dont go too far or your power loss will be devastating, you need to listen to your engine and look for smoke at the same time. i always leave a little black smoke at the high end of the revs this will give you enough power but wont black out the street.

tranny could be geared differenty from your old one which sensors where replaced o2? map? egr? maf? (mass air flow) could be smaller drive shaft as in circumference.