Why is the engine emmitting black smoke when driving

how about a tune up

HI....
The cause of the engine come Overheat.
The WATER PUMP. on your car Is driven with the TIMING belt.
My solution is :
Don't drive more Because if the TIMING belt when Broken.
The HEAD VALVES can be damaged. Be careful.
Get the car to a Autorepair SHOP. or if you can do yourselft.
REPLACE the water pump and the Timing belt.
And check all the pulleys after you remove the covers and timing belt.
Inspect the SEALS replace if need.

If you need assistence to do yourselft.
I can give the info.

I hope this help on your problem.

If you don't have a clue ,why are you trying to play auto mechanic ! How do you know it needed head gaskets ? White smoke out the tail pipe , blowen head gaskets ! You didn't do it right ! Take it to a qualified repair shop .

If the smoke is only when you first start it I would be looking at your valve stem oil seals, this is no serious problem to your driving and with the right gear and knowledge can be changed in car . But if your smoke is more constant than the story changes, your oil control rings have failed and this needs an engine overhaul. 2 things you need to remember is fuel burns black, oil burns white and head gaskets show visible problems, water or air leaks both external and internal so your mechanic may be correct

Have you checked to see if your fan is working ?
After performing your repairs, did you bleed the coolant system ? One way is to run vehicle with heaters running to make sure that air in the heater core / hoses is bleed.

coolant leaking into engine probably blown head gaskets. More damage will occur the more you drive it. Unfortunate and expensive repair on a northstar.

STOP driving this vehicle until you have it looked at by a professional. You may very well have a blown head gasket. If you do, then you will destroy this engine if you continue to drive it.

what does this smoke smell like? oil? coolant?, if it smells like coolant then u have a leaking head gasket, not all head gasket leaks cause overheating, so the fact the engine is not overheating doesn't mean you don't have a head gasket leak.

how do u change the water pump in a 1993 toyota camry v6 engine?

If the smoke is white, or steam it is water. you might have cracked the head or warped it. Did you get it looked at before you put the new gasket on? If the smoke is black then it is oil. Do a compression check and see if you don't have a bad cylinder. They should all be about the same give or take 5 lbs.