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        General >> Problems >> Stiff accelerator within 500 yds of driving
        
(Message started by: wobbs on Dec 6^th, 2007, 10:01pm)

Title: Stiff accelerator within 500 yds of driving
Post by wobbs on Dec 6^th, 2007, 10:01pm

Starts up fine, revs fine, engages gears fine but within 1/4 mile the accelerator stiffens up and only gives me 50% acceleration then it stiffens up completely and I have no acceleration ???

I spoke to an autobox expert he says if it engages gears its fine and the problem is electrical
I connected the ELM320 and there are no DTC's
Any ideas folks
1997 24v Ultima estate

Regards
Andy

Title: Re: Stiff accelerator within 500 yds of driving
Post by Highlander on Dec 6^th, 2007, 11:03pm

The pedal stiffens up? as in you cant press it to the floor?

Title: Re: Stiff accelerator within 500 yds of driving
Post by Kjetil S on Dec 7^th, 2007, 12:29am

If it becomes physically hard to push in, then it sounds like a problem with your traction control system. Is the traction control warning light flashing? (the orange one looking like a wheel spinning)

Title: Re: Stiff accelerator within 500 yds of driving
Post by wobbs on Dec 7^th, 2007, 7:13am

Hi Highlander
It can be pressed but its as though i have added 5 extra strong springs.

Traction control is ok for now, a few weeks ago though i got the traction control light and the abs light on for a while but they have not come on since then. it feels electronically restricted. if i sit in the car with the engine running with it in neutral, within 5 minutes it will unrestrict itself and give me 50% acceleration use but if i go for a drive again it will restrict 100%.

Regards
Andy

Title: Re: Stiff accelerator within 500 yds of driving
Post by scorpio_man on Dec 7^th, 2007, 7:42am

hi there

i agree with the t/c idea. try driving with the t/c switched off (light on dash). see if that's any better.

then check the throttle cable. it runs all the way round the engine bay to the t/c unit behind the n/s headlight, then up to the throttle body.

hth

Title: Re: Stiff accelerator within 500 yds of driving
Post by Snoopy on Dec 7^th, 2007, 8:07am

Sounds like TC cutting in As in the messages above ...

Title: Re: Stiff accelerator within 500 yds of driving
Post by Matt on Dec 7^th, 2007, 9:07pm

what size wheels are are on it?

if the back are a smaller diameter then the front the car thinks the rear wheels are spinning

Title: Re: Stiff accelerator within 500 yds of driving
Post by wobbs on Dec 8^th, 2007, 11:18am

Spoke to auto lecky (mark) and he confirms it is the traction control at fault so yes guys you were correct thankyou. he says i have 2 options change the accelerator cable and go direct to the throttle housing bypassing the TC system altogether or take a look at the system he says it works via cams on a push/pull basis he has never taken one apart as being with a ford dealer for 20 years all they have ever done is change the system.

Has anyone ever taken the system apart to see what ticks?
1 thing he did say is that they are a fantstic car

Matt the wheels are standard 16" cosworths
what he did tell me is that 10% wheel speed difference engages the TCS

Regards
Andy

Title: Re: Stiff accelerator within 500 yds of driving
Post by scorpio_man on Dec 8^th, 2007, 1:47pm

hi there

more than likely the t/c module itself. just change it for one from a scrap car.

they're all the same.

hth

Title: Re: Stiff accelerator within 500 yds of driving
Post by ghia-cossie on Dec 9^th, 2007, 7:08pm

when my traction control is comming in, i dont feel anything in the pedal!! but tc works perfect.

groeten

Title: Re: Stiff accelerator within 500 yds of driving
Post by wobbs on Dec 9^th, 2007, 7:43pm

Wel it did it again today even with TC turned off :'(
the cars max speed was 1/10 of a mph till i took the plastic shroud off the engine and shoved a peice of wood i found in the kerb into the throttle linkage and raised the revs to 2000. got me home it did }{

So it gets disconnected tonight/tommorow
will let you know how i get on

Regards
Andy

Title: Re: Stiff accelerator within 500 yds of driving
Post by wobbs on Dec 9^th, 2007, 10:21pm

All done now "took 1 hour" TC removed rerouted the TCS input cable
back to the throttle linkage I now have full throttle usage with no electronic wizbangery to go wrong
I have while next october to source another TC system
(mot time) or service the one i have, has anyone had any experience servicing the TCS unit?

ABS/TCS light is on
I know TCS won't work because its in my shed ;D
but is ABS disabled

Regards
Andy