How does the engine in a 2.2L chevy cavalier motor get tore down and change the head gasket? i removed all the bolts and screws and the head still wont come off. its like im missing something but i have removed everything i could see or feel that would be holding it on.

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Valve Lash

https://www.google.com/search?q=1986+cavalier+2.0+valve+lash+adjustment

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Watch this GM 2 2L Ecotec timing chain replacement 03 Cavalier part 1 Intro and valve...

Drain the oil and remove the screws/bolts that hold the pan into place.

Then use a flat-blade screwdriver to gently prise the pan free.

Clean both mating surfaces of pan and block - remove all traces of the old gasket.

Smear some sealant compound on the oil pan - this will hold the new gasket in place. Put the new gasket onto the oil pan and align the bolt holes. Lift the pan into place and tighten the bolts.

The photo below is a generic image of oil pan with gasket.

The process is basically the same for any car or truck. Yours is an 8 cylinder engine, everything will have to be removed from the top of the engine and all wiring will have to be disconnected and moved to the side, You will have to remove the valve covers. If you have an overhead cam, in this car, you'll have to remove all the pulleys, water pump, AC unit and power steering unit from the front of the engine so you can then remove the timing cover. Remove the timing chain(s) and gear(s), you then can go after the head bolt removal.

If you do one head gasket, you may as well do the other one why you have the car tore down. If you have aluminum heads, you will most likely have to take the heads and have them milled (resurfaced) especially if you overheated the car when the head gasket blew.

For more detailed information, you really should buy yourself a repair manual so you can get torque specs on nuts and bolts and buy any specialty tools you may need to do the job.

I would need to know the actual code numbers to comment, but in general those components would not keep the engine from starting.
Have you checked compression, spark and fuel pressure ?

coil or electronic ignition module going off when turning warmer.i guess run some test

Vacuum leakage. Check throttle body mounting bolts, and intake manifold for proper seal. The new head gasket leaking could also cause this problem.

make sure you drain the oil!
Take a flat screw driver and gently hammer it into the gasket area where the bolts were from the flat area all around the pan,then pull it down.

sound like u didnt torque bolts down right or head is warped to fix take apart again then take head to get cleaned and plaind then double check torque specs

put car on stands

remove right side engine splash shield

remove exhaust shield

remove AC brace at starter/ compressor bracket

remove flywheel inspection plate

remove engine mount strut, remove bolts from bracket. Lower the bracket slightly to gain clearance to remove pan.

remove oil filter extension (auto trans. only)

remove all pan bolts

tap pan with rubber hammer to break old gasket loose from block.

clean all used gasket off and install is reverse