Should i flush my transmission or just change it? 54k miles.Help!?

Since the oil is more refined and filters are better these days (I would recommend Fram 3X or 6X filters), I go 5000 miles between changes. If your 2007 is up in the 80K-90K mileage range, you might want to look at the high-mileage oil as a substitute. You might also want to look at synthetic oil, which can stay in your engine even longer. As far as Jiffy lube or the dealership, not having used either, my best guess would be the Jiffy lube is faster and cheaper, but the dealership probably has better trained people doing the work and will check your car to make sure nothing else is wrong, while you are there.

Most likely your trasmission oil is very hold need to flush it out jiffy lub can do that for you good luck pierre

unfortunately sometimes when you get the engine or transmission flushed it can cause an oil leak I don't know what it will cost but I would be getting other quotes & get the work done at the cheapest quote, it pays to shop around........hope this helps......cheers.

The best thing to do is check double check it yourself. Run the car up to normal operating temp first. Pull the transmission dipstick, with the car running, and look at the fluid. Check the level while you are at it. The fluid should look pinkish and should smell like oil. If it is more brown than pink or smells burnt then it should be changed. It doesn't need to be flushed.
GM recommends changing it every 100,000 miles except under hard driving, so if you chang3d it a couple years ago you should be alright unless you notice something wrong when you checvk it yourself. ope this helps.

Pulling the dash out to expose the blend door isn't easy. Check for a cracked or missing vacuum hose on the intake manifold.

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).

Thanks for using FixYa -a 4 THUMBS rating is appreciated for answering your FREE question.

Yes, this is very important maintenance procedures. Transmission should be serviced (filter, oil, and oil pan gasket replaced) @ 60K miles, plugs at 100K miles (I'd replace them early for better gas mileage), and radiator flushed @ 60K miles. Hopefully this helps!!

When driving, the temperator might go up a little and the gear might not change on specified timing.

you need to take the vehicle to a real mechanic. Jiffy lube employes are not mechanics. Change your oil at jiffy lube and get mechanical work done at a reputable auto dealer or mechanic shop.

Manual trans as well as auto trans,the fluid should be changed once a year and/or every 30k miles.