When accelarating engine stutters. Just had oil and trans fluid changed. Service light came on. Is it possible spark plugs need replaced?

hook up a scanner check for codes, that will tell you if you have an engine problem or transmission problem, you can also check the trans fluid condition if its good, it will most likely be an engine drivability problem

you need drain fuel tank.fuel tank probably need to be removed and cleaned out to remove all sediment in bottom of fuel tank.remove each sparks and label them.squirt some clean engine oil down the spark holes into cylinder bores to help lubricate cylinder walls and help seal the piston rings to build up compression.replace fuel filter.best to change spark plugs and wires.check all brake hoses they more likely old cracked. i would change brake fluid bleed out all the old brake fluid out of the brake system.also change power steering fluid and change transmission fluid and filter also change engine oil and oil filter.replace the antifreeze and all the coolant hoses and radiator hose.replace thermostat and radiator pressure cap.replace battery and add new full tank of gas.you should be ready go. check ignition timing also.

It's listed in your owner's manual. Schedule A is normal driving conditions.
SCHEDULE "A"
7,500 miles (12 000km) or at 6 months
- Change engine oil.
- Replace engine oil filter.

15,000 miles (24 000km) or at 12 months
- Change engine oil.
- Replace engine oil filter.

22,500 miles (36 000km) or at 18 months
- Change engine oil.
- Replace engine oil filter.
- Inspect front wheel bearings.
- Inspect brake linings.

30,000 miles (48 000km) or at 24 months
- Change engine oil.
- Replace engine oil filter.
- Replace engine air cleaner filter.
- Replace spark plugs.
- Drain and refill automatic transmission fluid and filter (4.7L).

37,500 miles (60 000km) or at 30 months
- Change engine oil.
- Replace engine oil filter.
- Drain and refill automatic transmission fluid and filter (5.2L/5.9L).
- Drain and refill transfer case fluid.

45,000 miles (72 000km) or at 36 months
- Change engine oil.
- Replace engine oil filter.
- Inspect front wheel bearings.
- Inspect brake linings.
- Flush and replace engine coolant at 36 months, regardless of mileage.

52,500 miles (84 000km) or at 42 months
- Change engine oil.
- Replace engine oil filter.
- Flush and replace engine coolant if not done at 46 months.

60,000 miles (96 000km) or at 48 months
- Change engine oil.
- Replace engine oil filter.
- Replace engine air cleaner filter.
- Replace ignition cables (5.2L/5.9L).
- Inspect PCV valve, replace as necessary.
- Replace spark plugs.
- Inspect auto tension drive belt and replace as necessary (5.2L/5.9L).
- Drain and refill automatic transmission fluid (4.7L).

67,500 miles (108 000km) or at 54 months
- Change engine oil.
- Replace engine oil filter.
- Inspect front wheel bearings.
- Inspect brake linings.

75,000 miles (120 000km) or at 60 months
- Change engine oil.
- Replace engine oil filter.
- Drain and refill automatic transmission fluid and filter (5.2L/5.9L).
- Drain and refill transfer case.
- Flush and replace engine coolant if it has been 30,000miles (48 000km) or 24 months since last change.
- Inspect auto tension drive belt and replace if required.

82,500 miles (132 000km) or at 66 months
- Change engine oil.
- Replace engine oil filter.
- Flush and replace engine coolant if it has been 30,000miles (48 000km) or 24 months since last change.

90,000 miles (144 000km) or at 72 months
- Change engine oil.
- Replace engine oil filter.
- Replace engine air cleaner filter.
- Replace spark plugs.
- Inspect front wheel bearings.
- Inspect brake linings.
- Inspect auto tension drive belt and replace as necessary.
- Drain and refill automatic transmission fluid (4.7L).

97,500 miles (156 000km) or at 78 months
- Change engine oil.
- Replace engine oil filter.

105,000 miles (168 000km) or at 84 months
- Change engine oil.
- Replace engine oil filter.
- Flush and replace engine coolant if it has been 30,000 miles (48 000km) or 24 months since last change.
- Inspect auto tension drive belt and replace if required.

112,500 miles (181 000km) or at 90 months
- Change engine oil.
- Replace engine oil filter.
- Drain and refill automatic transmission fluid and filter (5.2L/5.9L).
- Inspect front wheel bearings.
- Inspect brake linings.
- Flush and replace engine coolant if it has been 30,000 miles (48 000km) or 24 months since last change.

120,000 miles (192 000km) or at 96 months
- Change engine oil.
- Replace engine oil filter.
- Replace engine air cleaner filter.
- Replace ignition cables (5.2L/5.9L).
- Inspect PCV valve, replace as necessary.
- Replace spark plugs.
- Inspect auto tension drive belt and replace as necessary.
- Drain and refill automatic transmission fluid (4.7L).

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Change oil,replace spark plugs and fuel filter,air filter,check all brakes and lube caliper slides,check and flush cooling system,replace trans filter and gasket and perform a trans flush.This will replace all the trans fluid not just the fluid in the trans pan.Add fuel injector cleaner about every oil change.This will keep this vehicle going for another 100k.This is the best engine G.M. has had and will go over 300k.The biggest problem was the upper intake plenum gasket leaking coolant into the cylinders and oil system.Hope this has helped and good luck.

Sounds to me like you need to change the transmission fluid the filter is under the air filter box and the drain plug is a 17mm on the bottom of the trans closest to the engine about mid ways between the car warm the car up good then drain the fluid beware the fluid will be hot the filter is like a oil filter it just unscrews fill with proper fluid do not over fill hope this helps you

oil change every 3000 miles check all fluid levels at 24000 miles change trans.fluid and filter,fuel filter,air filter. at 30000 miles pack front wheel bearings service cooling system,replace spark plugs,inspect wires and pvc valve. lubricate the chassis every 6000 miles. hope this will help!!!

90000 km service includes changing.spark plugs,oil and oil filter,gearbox fluid,brake fluid ,air filter and fuel filter if needed,a full safty inspection.and the most important timing belt,and while your doing the timing belt you should do the water pump.

CHANGE SPARKPLUGS/ OIL/ AIRFILTER/ OILFILTER/ CHECK DRIVE BELTS FOR WEAR / CHECK MILEGE USE ON TIMING BELT AND REPLACE BELTS IF WORE.

yes the service light can come on because of the spark plugs. the best way to find out what the service light is on for is to go to one of the major auto parts stores and they will check it and tell you what you need for free. cant help you with the location of the plugs because ive never worked on this vehicle before.

water pump pretty cut n dry replace it ,thermostat & gasket . trans shudder at cruising range --- whats the milage ? 50,000 or more i suggest changing trans fluid & filter . NOT TO BE CONFUSED WITH A TRANS FLUSH 2 totally diffrent service's.. pull pan change filter & there's a plug on some torq-convertors, depending on transmission ,E4OD has the plug, 4R70W AODE do NOT. SO JUST CHANGE WHATS IN PAN & LET IT DRAIN ASA LONG AS YOU CAN. if no plug service twice in a 3 week period. then if it still does it the trans needs to be rebuilt.