shifting problems???

[richtazz]

I used to work at an oil change place (bad career move there let me tell you...) and any customer that wanted a trans flush with a vehicle that had over 80k miles had to sign a waiver that we were not responsible for any later transmission damage. That right there is enough to tell me it's a bad idea.

As Bob stated, the quicky lube trans flush/fluid exchange machines use the vehicle's trans pump to move the fluid. Therefore, any claims that they "back flush" the filter is total BS. Also, if the operator isn't paying attention and doesn't have the valves on the machine adjusted properly, it can either run the car's pan dry or overfill it causing damage to the trans. I have seen many instances where shortly after doing a flush, the trans takes a dump, where I've never seen it when a pan drop/filter change is done. The reasons vary, but the results don't lie. As I've stated before on this topic, if you wait until the trans fluid is burnt and you NEED a flush, it's too late and the flush will not help.

[00GTP4ME]

So if a "real" flush were to be done, there would be no need to drop the pan, correct? Everything would be done through the machine?

[troy1]

We have had ZERO failures from trans flushing. 90% of people want a trans flush when something is wrong other than that it’s out a sight out of mind. There are very few people that do P.M. most run until an issue arises then think the service or flush will be a cure all. Now keep in mind we do NOT have a flushing machine and always pull the pan first (if there is one) and if we see a problem we stop there. Another thing to avoid is the quick lube places for trans maintenance!!!.

[vick79]

This is not really a reply, but a question in it's self. My brother has the shifting problem. He already ran the codes check and come up with the speed sensor. I heard that 2 speed sensors on this car. Since the car mostly acts up when it is raining, we figure that it is probably the speed sensor outside of the transmission. I was wondering if anybody could tell me where this other speed sensor is at, it would be greatly appreciated.

[00GTP4ME]

Originally Posted by troy1

Another thing to avoid is the quick lube places for trans maintenance!!!.

Along those same lines, avoid going to a steak house for heart surgery.

[BNaylor]

Originally Posted by vick79

This is not really a reply, but a question in it's self. My brother has the shifting problem. He already ran the codes check and come up with the speed sensor. I heard that 2 speed sensors on this car. Since the car mostly acts up when it is raining, we figure that it is probably the speed sensor outside of the transmission. I was wondering if anybody could tell me where this other speed sensor is at, it would be greatly appreciated.

There is an input speed sensor (ISS) which is hard to get at. Located at the the area where the torque converter is located at the input shaft of the transaxle.

And welcome to AF.

[tblake]

I'm not a flushy person myself, so I would say no to a flush. I have heard horror stories from people who have flushed, and myself feel that if the trans fluid is changed regularily (ie pan drop) that a flush would be a wast of time.

I have however flushed tranny coolers as a process after a complete trans rebuild. No issues there.

While we are on the topic of tranny's, what do you guys thing of this?....
I'm thinking about getting one for when I do my next pan drop. I like the idea of keeping the trans cooler, plus it has a drain plug for future fluid changes.

http://www.zzperformance.com/grand_p...=547&catid=105

[BNaylor]

Originally Posted by tblake

While we are on the topic of tranny's, what do you guys thing of this?....
I'm thinking about getting one for when I do my next pan drop. I like the idea of keeping the trans cooler, plus it has a drain plug for future fluid changes.

http://www.zzperformance.com/grand_p...=547&catid=105

Waste of money Tim. The best aftermarket pan around was the one by MSP which is no longer available. It allowed for an extra 1/2 qt of ATF capacity. Plus you can add a drain plug to the stock pan. Unless tranny temps are an issue save your money. A tranny oil cooler would be more effective.

[tblake]

Good to know Bob!. Thanks for the advice!

Tranny temps aren't an issue, and I think if I install an external cooler that it might have reverse effects during the wintertime. Just was looking into it.

I will keep my eyes open for a used MSP, and look into that plug.

Thanks!

[BNaylor]

Originally Posted by tblake

Tranny temps aren't an issue, and I think if I install an external cooler that it might have reverse effects during the wintertime. Just was looking into it.

Of course that depends on where you live Tim. In your case the tranny cooler may not be a good idea unless you tow stuff. I have the GM tranny cooler kit for my GTP. Just haven't decided whether to install it yet. I'll see how the summer temps are.

[tblake]

Would you use your external cooler in conjunction with your existing one? Or bypass the one in the radiator all together? (Just curious as to the benefits of each)

[BNaylor]

In conjunction per the install instructions. See link.

Click here