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        General >> Problems >> Gear box knocks only in 1st-2nd
        
(Message started by: anthonyultima on Jan 10^th, 2007, 12:20pm)

Title: Gear box knocks only in 1st-2nd
Post by anthonyultima on Jan 10^th, 2007, 12:20pm

Hi all,

I had my gear box replaced last year but it still gives a kick between 1st and 2nd. Apparently there may be a re-programming needed. The people who did the job said they didn't have the equipment???? strange if they are supposed to be specialists!!!!
Has anyone had same problem? and does anyone know who could do this in the Leeds/York area? local Ford dealer wasn't interested
Cheers
Ant

Title: Re: Gear box knocks only in 1st-2nd
Post by brewer on Jan 11^th, 2007, 10:03am

Have you checked the VSS? I had jerky gear changes and then noticed the speedo was reading low when the engine was cold. A new VSS cured both.

Title: Re: Gear box knocks only in 1st-2nd
Post by Jim on Jan 11^th, 2007, 11:22am

Also clean the MAF unit http://www.fordscorpio.co.uk/cleanmaf.htm . This often cures gearbox anomalies.

Title: Re: Gear box knocks only in 1st-2nd
Post by brewer on Jan 11^th, 2007, 5:29pm

If the gearbox has been replaced recently it's probably OK.
But it needs to be given the right instructions which is why the VSS and MAF need checking.

Title: Re: Gear box knocks only in 1st-2nd
Post by anthonyultima on Jan 15^th, 2007, 1:30pm

Hi
Thank you for your reply

I have cleaned the MAF but still no better.
The VSS, can you tell me how hard these are to fit and how much they cost-would be a real help as I love the Scorpio and want it to perform as it should
Many thanks in advance

Anthony

Title: Re: Gear box knocks only in 1st-2nd
Post by Dave on Jan 15^th, 2007, 2:43pm

Hi,

the VSS is a small unit on the side of the gearbox and as far as I know is not difficult to get at or replace. Cost was around £55 a few months ago from a Ford main dealer.

Title: Re: Gear box knocks only in 1st-2nd
Post by TiberiuS on Jan 15^th, 2007, 6:48pm

Ant, I had my software done along with my 'new' autobox the other year, it was done in my case to update (change) the engine's behaviour for better fuel economy and idle (barely noticeable unless you're used to the car).

The big question is what grade of autobox you had put in, was it a genuine recon with paperwork or just a lower mileage box from another car?

VSS is a good place to look, another clue to this is as another poster said, if the speedo goes erratic, you lose overdrive etc. Other than that you could check the loom and think about getting fault codes read.

Good luck.

Regards, Bruce :).

Title: Re: Gear box knocks only in 1st-2nd
Post by - Mike - on Jan 16^th, 2007, 10:58am

on 01/15/07 at 14:43:26, Dave wrote:

Hi,

the VSS is a small unit on the side of the gearbox and as far as I know is not difficult to get at or replace. Cost was around £55 a few months ago from a Ford main dealer.

What does VSS actually stand for?
is it a diaphram the same as fitted on the Granada?

Title: Re: Gear box knocks only in 1st-2nd
Post by Simmo on Jan 16^th, 2007, 1:20pm

It is the Vehicle Speed Sensor. Read THIS (http://www.fordscorpio.co.uk/eecv.htm) and scroll down to the relevant paragraph.

Title: Re: Gear box knocks only in 1st-2nd
Post by TRACEYS_LIMO on Jan 16^th, 2007, 3:55pm

hi if the maf is cream crackered like mine was you will still get the same surge and thump between first and second :(

Title: Re: Gear box knocks only in 1st-2nd
Post by TRACEYS_LIMO on Jan 16^th, 2007, 4:01pm

even after cleaning (forgot to add that bit, David

Title: Re: Gear box knocks only in 1st-2nd
Post by TiberiuS on Jan 16^th, 2007, 4:03pm

Best way is to disconnect the MAF and see if limp home mode alters the fault at all ;). My gearbox woes weren't down to the MAF...I wish they were, way cheaper than a new autobox ::)

Title: Re: Gear box knocks only in 1st-2nd
Post by anthonyultima on Jan 18^th, 2007, 2:05pm

Hi all,
The gear box was fully re-built using new parts 'aparently'..i'm going to first replace the VSS as this doesn't seem expensive and see what happens. I'll let you know if this cures it. Many thanks for all info-will be trying everything

Title: Re: Gear box knocks only in 1st-2nd
Post by TiberiuS on Jan 18^th, 2007, 2:45pm

Ant, I notice the last car in your sig with great interest ;)

May be worth unplugging the MAF to put the engine into limp home mode and see if this changes the fault. Pull the codes too....you never know, it might just be an out of range solenoid :)

Regards, Bruce.