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Slow Automatic gearbox 

 

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 Post subject: Slow Automatic gearbox
Posted: Wed Apr 05, 2006 3:25 pm 
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Hey everyone...

I recently bought a 1997 Ford Fairmont Ghia V8... i wanted to see what it was made of, so i went out on the highway and gave it a boot full... but when i got to the 2nd - 3rd gearchange... i noticed that the gearchange was soo slow... the engine went about 100rpm into the redline between gearchanges.. i was wondering if this is normal... and if it is not normal.. what can i do to fix it?.. i am not a fan of redlining my car...

Thanks

 

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Posted: Wed Apr 05, 2006 3:26 pm 
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Hey. Welcome to the forums.

You may find that a transmission service and or flush will significantly improve the behaviour of the gearbox, both for taking off and during gearchanges.

Not a guaranteed fix but a good place to start.

I assume that was with conomy mode turned off?

 

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Posted: Wed Apr 05, 2006 3:29 pm 
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hmmm... have you checked ur transmission oil? it might need to be changed. when i bought my car it had the same problem an when i checked the transmission oil it was black and full of water. i got it flushed out and replaced with new oil an it was shifting better.

 

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Posted: Wed Apr 05, 2006 3:30 pm 
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hehe u beat me to it :)

 

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Posted: Wed Apr 05, 2006 3:33 pm 
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Yeah, economy mode was turned off... i dont notice any difference between the two modes... but yes it was turned off.. the gearbox service is due at 155,000kms... the car is in imaculate condition.. only 150,000kms... i have also noticed the diff is very clunky... it is an LSD and i used to own a 1997 Falcon Futura with a Tickford V8... and it didnt have an LSD... It was also clunky.. but not quite as bad as this... im wondering if the LSD would make any difference with this.

The gearchanges are smooth when flat to the floor... just 3rd to 4th is slow... and at slow acceleration the gearchanges are fairly clunky.

Any imput would be nice :)
Thanks

 

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Posted: Wed Apr 05, 2006 3:36 pm 
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Yeah i reckon go for a full service and flush before the next due interval... might set you back the better part of $100 but you dont need to do a full flush very often...

With economy mode you should notice the box will change much earlier... and the changes themselves will be slower under medium throttle... when cruising, this equates to a smoother shift, but when giving it a bit, causes quite a lot of slippage which aint for for the trans fluid and aint good for the clutch/band surfaces...

 

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