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Thread: What a difference changing transmission fluid makes!! Reply to Thread
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Topic Review (Newest First)
03-12-2013 12:15 PM
G Ford Fan
Quote:
Originally Posted by smurf91 View Post
An update. The car is shifting smoother but its still having an issue. If I do a rolling stop the car seems to not be shifting to first gear. When I role up to a red light and it turns green before I have a chance to fully stop or when I have to slow down on an entrance ramp on the highwaythen get on the gas it doesn't down shift. No slipping of any sort. The guy I got it from had the fluid changed at 77,000 and I just changed the filter and fluid at 114,000. Im thinking the shift cylinder for first or lockout may have something to do with this. Maybe converter but I highly doubt that. any ideas? I have changed tps, maf, coil, wires and plugs. I have no cel on. Im taking it to aamco this week but could use some feed back before hand. Thanks in advance. I also had to replace the entire wireing harness from front to back because of a short to ground on the coil and maf harnesses. Im gonna reclean all plugs and regrease them. It feels like its not getting a signal to open the valve and its building up a lot of pressure and forcing the valve open. It will down shift, just have to give it to much gas . I know this is going to lead to big problems sooner than later if it isn't fixed quickly.
This is the exact problem my 2000 Wagon has, I will be following this thread with interest. Let me know how you make out, if you get it figured out.

Thanks,
Greg
03-12-2013 01:46 AM
smurf91 An update. The car is shifting smoother but its still having an issue. If I do a rolling stop the car seems to not be shifting to first gear. When I role up to a red light and it turns green before I have a chance to fully stop or when I have to slow down on an entrance ramp on the highwaythen get on the gas it doesn't down shift. No slipping of any sort. The guy I got it from had the fluid changed at 77,000 and I just changed the filter and fluid at 114,000. Im thinking the shift cylinder for first or lockout may have something to do with this. Maybe converter but I highly doubt that. any ideas? I have changed tps, maf, coil, wires and plugs. I have no cel on. Im taking it to aamco this week but could use some feed back before hand. Thanks in advance. I also had to replace the entire wireing harness from front to back because of a short to ground on the coil and maf harnesses. Im gonna reclean all plugs and regrease them. It feels like its not getting a signal to open the valve and its building up a lot of pressure and forcing the valve open. It will down shift, just have to give it to much gas . I know this is going to lead to big problems sooner than later if it isn't fixed quickly.
03-09-2013 01:53 PM
Eduktion Yea im just gonna get a tranny and sell it, buy a manual trans
03-08-2013 04:39 AM
rawrfish
Quote:
Originally Posted by Eduktion View Post
thats good to hear, even on my 13 year old car???? and something funny happened to me today if u can help me out scott, i place my auto on reverse and the damn thing didnt want to go!, i had to put my foot down rev it up and then it took off! first time this happened to me it was very lightly this is the second time it happened getting worried, since trans isnt all that cheap of a fix!
i had that problem too, about 3 days before i had to replace my entire trans :(

about an hour after it did it CEL light popped up on my dash. took it to autozone and they said it was a transmission range sensor. 2 days later and i needed a new tranny. mine was hesitating to go out of second and into third as well too though.

hopefully yours isnt as bad as mine though
03-08-2013 02:56 AM
Eduktion
Quote:
Originally Posted by amc49 View Post
Here we go again, I smell a 'I changed new fluid for very old and the new fluid tore up my transmission!' post coming shortly.

Some people will never get it............and the car could care less about whether they have the funds to fix it.

The guy STILL hesitant about doing it, even though now he's quaking over damage he's already done. Well you've gone and done it now, the trans is on it's way out, no thanks to the maintenance you did there...........

Wanting a transmission to last and then not lifting a finger to help that is quite frankly defective thinking. I really mean no offense but it's gotta be called what it is. There are others who think same thing and they need to see this, it may save them some big money.

If one changes fluid and experiences that type of performance change then he went WAY too far, and does not know what proper fluid looks or smells like. Normal fluid changes on any car I've ever done are transparent and the only way you can pretty much tell is that the gears bump in a bit faster and firmer when you put it in gear. The shifts should be about the same and there should be no night to day difference. I have never experienced that fantastic result in all the automatic transmissions I've ever worked on. You don't want to know how many that is.................

Keep them knickers on! I bought the car a few months back, This is my first car im still learning...
03-07-2013 09:13 AM
Mile30 You should be doing it once a year if you drive a lot. Fluid changes are hella-cheaper than component replacement. AMC has a good point... coming from a member of the automotive industry: you can't ignore that facet of ownership. Everything will break down eventually, so you gotta read the maintenance schedule and actually follow it!

It happens regularly enough: car comes in with shifting-woes, gets a loooong overdue flush and DOES start acting different. It was too late (like differential whine; if you're starting to hear it, it's already funked-up) beforehand, but the customers act/say the dealer/shop/mfg is out to get their money!

The car cost thousands upon thousands to buy; what makes people think any one part of it is going to be cheap?!?! The techs and mechanics don't put those miles on it...


Pick up a case of fluid with your tax money, swap it out every year or so in the driveway... save your trans!
03-07-2013 08:27 AM
DarwinSays ahh, amc is showing his age, hehe.

It is true though, that even some newer-ish vehicles are still susceptible to that kind of problem. A buddy of mine had a late 90's Blazer that went about 60k on original tans fluid, and when he finally changed it, the trans had to warm up before it would lock into overdrive.

I've always kept fresh royal purple trans fluid in my getrag 6spd, and I can always tell when the fluid is starting to break down by how it shifts. I usually end up changing it every 1-2 years, depending on how much it gets driven. Well worth the cost imo!
03-07-2013 03:32 AM
amc49 Here we go again, I smell a 'I changed new fluid for very old and the new fluid tore up my transmission!' post coming shortly.

Some people will never get it............and the car could care less about whether they have the funds to fix it.

The guy STILL hesitant about doing it, even though now he's quaking over damage he's already done. Well you've gone and done it now, the trans is on it's way out, no thanks to the maintenance you did there...........

Wanting a transmission to last and then not lifting a finger to help that is quite frankly defective thinking. I really mean no offense but it's gotta be called what it is. There are others who think same thing and they need to see this, it may save them some big money.

If one changes fluid and experiences that type of performance change then he went WAY too far, and does not know what proper fluid looks or smells like. Normal fluid changes on any car I've ever done are transparent and the only way you can pretty much tell is that the gears bump in a bit faster and firmer when you put it in gear. The shifts should be about the same and there should be no night to day difference. I have never experienced that fantastic result in all the automatic transmissions I've ever worked on. You don't want to know how many that is.................
03-07-2013 01:59 AM
Eduktion thats good to hear, even on my 13 year old car???? and something funny happened to me today if u can help me out scott, i place my auto on reverse and the damn thing didnt want to go!, i had to put my foot down rev it up and then it took off! first time this happened to me it was very lightly this is the second time it happened getting worried, since trans isnt all that cheap of a fix!
03-07-2013 01:26 AM
scott7278
Quote:
Originally Posted by Eduktion View Post
but i heard that changing it the trans fluid after high mileage isnt worth doing??? my car is doing this so any ones advice on wit would be a mega help!
That used to be true on old, old cars - the theory was the detergents in the newer fluid would cause the break-in process all over again, causing more wear, and the varnish would break off and get stuck in the shift valves. This was when automotive technology was primitive (by today's standards), and vehicles headed to the junk yard much sooner.

If you want your transmission to last, leaving dirty, broken-down fluid in there will not help you one bit. Flush and fill it, all of it, and your car will love you for it.
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