Sounds as if you are having fuel injector problems . Try putting in high octane gas and then some fuel Injection cleaner run it for awhile and see if it straightens out some . It could also be a injector pump . It may also need tune up plugs and plug wires new rotor and rotor cap . You may need a tune up badly also check your intake air cleaner ect
SOURCE: 2000 chevy lumina. Is fan supposed to come on when car started
no fan comes on when engine cold start up .but it will come on when you turn on air conditioning or defrost on .if engine idling a while when temp get 190 degree the fan will kick on.if over heating you got air in system .wait until cools check coolant add more .crank engine let it idle few. minutes when start warming up turn off engine wait a while before removing radiator cap so you wont get scald.add more coolant .crank it again starting warming up turn off engine wait a while .add coolant .keep doing this procedure until your coolant stop dropping off .if you do this more than 6 times you got a leak some where.check crank level for signs.if oil level higher than normal.if everything looking good.when engine cool make sure add coolant to over flow jug cold level mark.
SOURCE: If collant take over filled
no this will not cause a surging, could be the egr valve if that year model has one
SOURCE: 2004 monte carlo, engine light on and engine
Not Good! Probably upper engine damage Intake or exhaust valve, possibly camshaft,Check the spark plug or wire condition.
SOURCE: Rough idle after intake gasket changed
check for vacuum leaks. at idle spray carb cleaner around intake mating surface if idle smooths out you have vacuum leak.
SOURCE: replacing lower intake manifold gasket on a 95
there are many details to this job. i just did mine a few months ago. the best thing to do is go to any auto parts store and buy a haynes manual, they are based on a complete teardown of vehicle.this book will tell how to do the job. the books are only 20.00, or less.
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