I have 96 v6 camry XLE and i notice that its check engine light comes in when i drive long and keep blinking some times. some times during this drive car hesitate to accelerate and doing bubling but its ok for short drive like 20 to 30 minutes , my mechanic already change the one of the coil as he says that code says cylinder 3 misfire but problem comes again as i drive agian long.

Video Description
The video above shows how to change the fog light bulb in your 2004 Toyota Camry. Not all models have fog lights - for many Toyotas, it depends on your trim level (XLE) or whether the fog light option was ordered when your Camry was manufactured. Fog lights are typically in the front bumper, below the headlight cluster and are helpful in poor visibility. If one fog light is burnt out on your Camry, we recommend changing both bulbs because the working bulb will be dimmer than the one you replaced and will likely burn out soon anyway.

When you change the foglight on your Camry, be careful not touch the glass part of the bulb with your fingers which causes the bulb to burn out earlier.

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Might be a faulty gas cap. Check for defect. If defected replace it.

Check your light switch which is the main one,after that check whether you do have any reset procedure through your ECU.

use a code reader to reset the CPU that was corrupted from the battery change over.

What your asking, is how to make a malfunction light
go away from your dash, so you can forget you have a
problem & make no attempt to repair the car

Until you find & resolve active OBD2 Codes that actually set
a MIL or Check Lamp it will keep coming back

Every time you clear a code you have to run a drive cylce in
some cases to start the procees over, as you need those codes
to diagnose the issues

The codes that are there, do not tell you what to replace

Without writing a book here, just study OBD Systems online &
take the car to a repair shop

It is beyond your ability at this time to figure out

Check your motor and transmission mounts.

Is it coming from the driver side, passenger side, front or rear of the engine? It could be a cam or crank seal if it is coming from the passenger side behind the plastic timing cover.

possibly tps sensor or spark plugs and wires

most likly the trans is just plain worn out you could have it rebuilt or replace it with a used one

When was the last time it was tuned up? Since you did not mention any "check Engine" light coming on, I assume that it is off. What I would do is check the plugs, replace them if worn, replace the plug wires if they are older than 5 years; check/replace the air filter. Not much else to do/check until you have the engine in a good state of tune; BTW, if you change the plugs, get the new ones at a Toyota dealer. I have a Camry V6, and when I put non-Toyota plugs in it, it ran worse. Toyota platinums made a 100% difference.