Do I need a mechnic for changing oil in my chevi

Good idea to check oil level first. Next, check that wire to oil pressure sender is still attached. Next, try hooking up know good mechnical gauge to insure you really have pressure. If all good, short wire to sender to ground--if gauge come up, replace sender.

That doesn,t make sense because the filter is on the engine (Block) Not near the oil pan, Take it to the dealer ship to get check out, that way you will not get a line of ****, From some mouth mechanic that could not change a bike cycle tire if they had to.

I can change my oil every 3 decades and it'll be at regular intervals. What are your intervals? 3000 miles? 84 million Mississippi? One lap around Daytona Raceway?

Where do you see the black smoke and carbon coming from?

A mechanic that "forgot" to change the oil filter is not only a poor mechanic, but he/she is ripping you off. You need an oil filter with each oil change more than you need new oil. If I poured clean water through a dirty Brita filter, would you drink it?

There is no way to tell you exactly what's wrong over the internet (besides your mechanic). But, assuming the smoke and carbon you mentioned is coming from...

the HOOD: You either have an oil leak, or just a bunch of oil sitting on your engine burning off. Check oil with dipstick (something you should be doing at least once a week in a NEW car, let alone a 10year old model.) The leak could be poor workmanship by your mechanic, or something entirely different, too.

the EXHAUST PIPE: You may have blown your piston rings or have a stuck/bent valve.

Toyotas are somewhat known for running well beyond when they should. I blew out rings in my '93 pickup and drove it daily for 3 more months before it actually quit. I'm still not convinced it's dead.

do you have a mechnical oil pressure gauge or electric?

Hello,I can help you with your buick oil pressure problem. This is the 3800 engine correct? Is engine noisey? Would be best to install a mechnical oil pressure gauge on your engine to see if you are actually losing oil pressure or we have another problem. this tells you exactly what the engine is doing. If you do not have one the cheapest thing to try is replacing the oil pressure sending unit.if sender is defective it will cause your problem. This sending unit is above the oil filter.

This is an indication of low oil pressure. Either the oil level is too low and you need to add oil to the full line on the dip stick or you have a real oil pressure problem and need to have the problem diagnosed by a certified mechnic.
Let me know if you have any other comments or questions. Thanks.

oil sending units go out occasionaly and dont really mess anything up other than leaking oil on the ground just make sure you have the correct amount of oil in the motor and youll be fine. i just changed mine it quit working around 75,000 miles and i helped change my friends on his dodge he was around 87,000 miles. we both done this last year and no problems have come from it....

the entire dash needs to be removed
highly not recomended to a novice

do you change the engine oil your car crosses the maximum miles with the old engine oil once your engine oil density become very low you will get the black smoke (or) you need to check the radiator water wether water and coolant is in correct level or not if it is in correct level you need to change the oil

whens the last time the oil was changed and what find of oil and oil filter are you useing?