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2007-07-03 11:06:09 · 5 answers · asked by parev 1 in Cars & Transportation Maintenance & Repairs

Thanks, you've all been very helpful.

2007-07-03 11:39:31 · update #1

5 answers

this is a process by which they hook up a flush machine to the cooling system or the transmission cooler and the flush machine pushes out the old coolant or trans fluid. It is the best way to exchange the old cooland and trans fluid. the flush procedure is more effective than just draining and refilling the fluids.

2007-07-03 11:12:20 · answer #1 · answered by bbking48507 5 · 0 0

Almost all of the above is true, except the change vs. flush. Most cars' transmissions cannot have the fluid changed. The best you can do is just drain and refill a few quarts. Both are pieces of maintence that should be performed, but they are often overlooked except by a mechanic (who wants to make money.)

Transmission fluid is an oil so it should be changed for maintence and the most efficient way to do that is by flushing it. Flush it every 50K- 70K miles on most newer cars with Synthetic oil. If your car has synthetic oil ask if they are using an actual synthetic or if they are using bulk tranmission fluid then adding friction modifiers. There is a difference (Full Synthetic is better) and the modifier and bulk oil way should be cheaper. You can find out what oil your uses by pulling your Transmission fluid dipstick.

Coolant becomes very caustic over time when the PH level changes. This can start to eat away at your waterpump impeller, thermostat, and radiator. This can cause very costly repairs over time. But coolant can be changed quite easily without flushing the system. As most of the fluid can be drained out. A flush will however help treat areas where damage may have already occured. Not doing this maintence could even lead up to a headgasket going bad from heat and ineffective cooling.

Please refer to your maintence schedule with your car for a good guide as to when these repairs should be performed. If you do not have one you can call your local dealer and they will most likely be able to print one out for you. If your car is too old for these things discuss the maintenace with your local mechanic.

2007-07-03 18:43:00 · answer #2 · answered by moparjoeatown 2 · 0 0

They are what they say they are. Transmission flush they drain the old trans fluid out then flush the system to get rid anything left in the system be it remaining fluid or any metal shaving. Once that is complete they fill the system up with new trans fluid. Cooling flush is where there drain the coolant usually from the radiator and flush either water or a coolant cleaning solution thru the system. ONce all the coolant is out of the radiator, hoses, and block, then new coolant is added.

2007-07-03 18:13:48 · answer #3 · answered by Jay P 1 · 0 0

be careful most vehicles need fluid changes not flushes. As long as there are no problems with the vehicle a flush shouldn't be don't for anything but your cooling system. and that's not always necessary. A vehicle with 12000 to 15000 miles driven a year should have its transmission fluid changed every 40,000 miles or so as long as you not doing any constant towing or hauling in which case then it should be every 30,000 miles or so. For cooling systems I suggest every 3 years no matter what. Also don't forget the battery even though most batteries say 72 month I change mine every 3 to 4 years because with the price of a battery it's ot worth a tow bill or the hassle of a break down at an unexpected time.

2007-07-03 18:19:50 · answer #4 · answered by sak 2 · 0 0

The cooling system consists of the radiator, heater, heater hoses, radiator hoses, water pump, and engine water jacket. Coolant circulates around the engine in the engine water jacket taking excess engine heat from the engine and heating the coolant in the process. The hot coolant is then pumped into the heater and radiator where air passes through the heater and radiator coils cooling the coolant. After substantial use, residue settles into spots in the system. By draining the coolant and running water through in reverse of the normal direction a lot of the residue breaks loose and drains away. This is the flush process. The cooling system is then refilled with fresh coolant (usually a 50 % by volume water and antifreeze mix).

A transmission flush is similar but water is not used; fresh transmission fluid is.

In both cases built up residue is removed and liquids flow more efficiently.

2007-07-03 18:13:11 · answer #5 · answered by GTB 7 · 0 0

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