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   Bit of a 'Backward' quetion?

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Topic: Bit of a 'Backward' quetion? (Read 573 times)

Silver_Poppy
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Bit of a 'Backward' quetion?
« on: Apr 25^th, 2004, 12:03pm »

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Hello everyone

Try to explain this as best as I can so here goes----- 16v 2ltr Auto.
Car starts fine, runs fine, changes through gears fine and is giving the expected mph. but when ever I select reverse there is a slight pause (1/2-1sec )and a loud thump that seemingly comes from the diff. I've checked the bolts on the drive shaft for looseness and none was found. She reverses fine no probs but then when I select drive from being in reverse there is another bump but no where near as loud infact it's hardly noticeable. There are no other probs manifesting themselfs with the car but as you can imagine it's abit embarassing when your car emits an audible thump when you select reverse.
Please, is there anyone with a pionter to help me cure this annoying habit my car has developed Embarassed

S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P.

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admin
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Posts: 1410

Re: Bit of a 'Backward' quetion?
« Reply #1 on: Apr 25^th, 2004, 12:08pm »

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check the maf and give it a good clean...

http://www.fordscorpio.co.uk/cleanmaf.htm

pete

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Silver_Poppy
Full Member

The HEAT is on!!!

Posts: 117

Re: Bit of a 'Backward' quetion?
« Reply #2 on: Apr 26^th, 2004, 10:56pm »

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Thanks Pete but I'm afraid it made little or no difference beacause it was quite clean before I sqirted it again. It still does the same thing as mentioned before. I have also checked the transmition fluid level and it is fine both for level and condition so if there is anything else for me to look at I would appreciate any pointers.

Thanks

S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P.

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Eddie
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Must try a different shampoo!

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Re: Bit of a 'Backward' quetion?
« Reply #3 on: Apr 27^th, 2004, 8:56pm »

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Sounds like its taking up some slack in the drive train(Diff. and /or UVJ's)

eddie

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Silver_Poppy
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The HEAT is on!!!

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Re: Bit of a 'Backward' quetion?
« Reply #4 on: Apr 27^th, 2004, 9:10pm »

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Thanks Eddie but is there a way to tighten things back up so to speak, does anyone have any info on how to get this done and can anyone tell me what 'uvj' stands for Undecided

Thanks

S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P.

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allante
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1996 24v Scorpio Saloon

Posts: 289

Re: Bit of a 'Backward' quetion?
« Reply #5 on: Apr 28^th, 2004, 6:38am »

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uvj, or just uj, is the universal joints.

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Silver_Poppy
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The HEAT is on!!!

Posts: 117

Re: Bit of a 'Backward' quetion?
« Reply #6 on: Apr 28^th, 2004, 6:55am »

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Cheers allante, the 'v' made me think, give me time to catch up it's early you know (lol). I've had alook on the site and cant find anything about 'slack in the drive train' can any one help me out please Huh

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john.n
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I love my cossie

Posts: 721

Re: Bit of a 'Backward' quetion?
« Reply #7 on: Apr 28^th, 2004, 7:31am »

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I think you will find this is now likely to be wear in the diff itself. No adjustment unfortunatly. This is caused by normal wear and tear.Only answer -replace with a known good unit or exchange diff. john.n Embarassed

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ChrisHolman
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Posts: 36

Re: Bit of a 'Backward' quetion?
« Reply #8 on: Apr 28^th, 2004, 7:56am »

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I don't have an answer, but it appears that delayed reverse on the A4LD is a common problem - I've seen one site (can't remember which, but it was in the USA) suggesting a delay of up to 2 secs is fine. There do seem to be some fixes out there, but might not be worth the bother - I've had mine with the same fault for three years now, hasn't got worse.

Of course you'd expect extra wear on other components, but as I say in three years nothing's come to light.

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'95 2.9 12V Estate Auto

Silver_Poppy
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The HEAT is on!!!

Posts: 117

Re: Bit of a 'Backward' quetion?
« Reply #9 on: Apr 28^th, 2004, 6:46pm »

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mmmmm

, the loud thump is annoying to say the least and it looks like I will try and go for a replacement diff etc. later on. Anyhow thanks for the replies, it is much appreciated.
Cheers

S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P. S.P.

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john.n
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I love my cossie

Posts: 721

Re: Bit of a 'Backward' quetion?
« Reply #10 on: Apr 28^th, 2004, 7:58pm »

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You have got me thinking now Chris! I will have a word with my auto box man and see what he says. Will post any relevant info. john.n Wink

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