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        General >> Problems >> Slight thump
        
(Message started by: crop on Sep 27^th, 2006, 2:47pm)

Title: Slight thump
Post by crop on Sep 27^th, 2006, 2:47pm

Hi. Is it normal to have a slight thump from the gearbox when changing from 1st to 2nd, the overdrive light is flashing and i haven't yet taken the car out for a decent run to see if it is changing into 4th yet. Fluid seems ok, red and no burning smell.
1996 2000cc 16v ultima saloon auto.

Title: Re: Slight thump
Post by TiberiuS on Sep 27^th, 2006, 4:33pm

Hi. Overdrive light flashing could indicate a fualt with the autobox, this (http://www.fordscorpio.co.uk/odlight.htm) may help you.

The fluid still being red is a good sign, it's normally dirty brown by the time anything starts going wrong, whats the mileage of the Scorp?

Bruce.

Title: Re: Slight thump
Post by crop on Sep 27^th, 2006, 5:14pm

Believe it or not 191,000 I only got it last week,paid £310 for it off e bay it was as it was described with a few electrical faults, ie boot would't open (using a bit of wire to pull lever) fixed that within 2 minutes (sticking solenoid) ,wouln't start from hot,found problem with inhibitor switch (got that bypassed at the moment) a few bulbs gone in dash but nothing major,dipping mirror us,but bodywork good in dark metallic green,engine starts first time seems to be ok,still has cd changer 7000 series radio which is ok,actually for the money it seems a good buy, lovely leather etc. It runs ok but the gearchange just seems to be a bit too harsh especially from 1st to 2nd and as i said i don't know about 4th yet,i have had it up to 60mph and it seems quite smooth and quiet.

Title: Re: Slight thump
Post by TiberiuS on Sep 27^th, 2006, 6:09pm

191,000, wow 8)

At nearly 200k don't be shocked if the box does need a recon, even if most of that clocked up is motorway miles. My car was much the same when I bought it, loads of 'faults', most easily sorted over the first weekend I onwed it (95k though ;)).

Someone more knowedgeable can probably help you more with the fault codes, you need someone to give you a scan ;)

Regards, Bruce.

Title: Re: Slight thump
Post by crop on Sep 27^th, 2006, 6:16pm

Yep i will get a scanner asap but i want to get one thats also suitable for my brothers volvo as well. Half each if you know what i mean :-/

Title: Re: Slight thump
Post by hellblue on Sep 27^th, 2006, 7:04pm

the gearbox is electronic if you have bypassed the inhibitor switch when you drive the car the ECM will think the car is still in park or neutral ! so fix that first then see whats going on!

Title: Re: Slight thump
Post by Octavian_P on Sep 28^th, 2006, 6:55pm

Cleaning the MAF usualy helps alot on the autoboxes

Cleaning the MAF - solving overdrive problems - Cleaning the MAF to improve engine performance
http://www.fordscorpio.co.uk/cleanmaf.htm

Title: Re: Slight thump
Post by roger_howes on Sep 29^th, 2006, 7:40am

Hello Crop,

You said:
'It runs ok but the gearchange just seems to be a bit too harsh especially from 1st to 2nd and as i said i don't know about 4th yet,i have had it up to 60mph and it seems quite smooth and quiet.'

If all is working properly, it should change into 4th at 50mph in E mode!

Mine didn't, until the local specialist replaced by speed sensor.

Regards.

Roger.

Title: Re: Slight thump
Post by crop on Sep 29^th, 2006, 3:40pm

Hi Roger, Octavian_p,maybe it did change into 4th as i said it is quite smooth at speed so maybe i just didn't notice the change up. thanks for the reply. i wish i could get a scan but i can't see me getting one for myself for a while, the one i had for my earlier car an omega 1995 is "lost" at the moment and i dont know if it will work with this one anyway.

Title: Re: Slight thump
Post by TiberiuS on Sep 29^th, 2006, 4:09pm

Get the car at over 50 and watch the revs, press the little O/D on the shifter and see if the revs rise :)

It would help matters if you knew whether you were getting 4th, some electrical faults disable overdrive.

What about the Vehicle speed sensor, could that be a candidate?

Bruce.

Title: Re: Slight thump
Post by crop on Sep 30^th, 2006, 1:31pm

Thanks I will take it for a run tomorrow and take note of all that happens and report back.