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        General >> Problems >> still got problems 
        
(Message started by: cscars1 on Nov 18^th, 2006, 10:19pm)

Title: still got problems
Post by cscars1 on Nov 18^th, 2006, 10:19pm

hello
io have a 96 scorpio 2.0 16v

i asked on here about my car surging when driving

so far i have changed the fuel filters

changed the plugs
rewired the ford's clever idea of running the loom over the engine after it melted

but still when i am driving the car feels like it is missing a little , as i say i have renewed the parts that would cause this but to no avail the leads seem ok and the two coil packs seem ok

problem in detail
the car starts up ok runs ok but sometimes the car seems to have a misfire or holds back when driving , under power , its ok but if you ease off or sit at a constant speed the car seems like it missing a beat
does not do this al the time though which makes it more strange

car does feel sluggish and not responcive as i think it should

iany suggestions will be great

Title: Re: still got problems
Post by Dave on Nov 18^th, 2006, 10:45pm

Not familiar with the 2.0 but a possible air leak springs to ming.

You could also try disconnecting the EGR valve too - disconnect and block the pipe that goes to the silver box on the bulkhead (on the 24v at least) to test if the fault disappears:

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

Title: Re: still got problems
Post by taliban on Nov 19^th, 2006, 1:29am

have you cleaned the MAF?

Title: Re: still got problems
Post by jonnycab on Nov 19^th, 2006, 1:48am

It's the coil packs....I'd bet my left testicle on it... ;D

Title: Re: still got problems
Post by taliban on Nov 19^th, 2006, 2:35am

got the scissors ready lol

Title: Re: still got problems
Post by jonnycab on Nov 19^th, 2006, 3:24am

.... :'(.... :'(....

Title: Re: still got problems
Post by TiberiuS on Nov 19^th, 2006, 8:33pm

on 11/19/06 at 01:48:32, jonnycab wrote:

It's the coil packs....I'd bet my left testicle on it... ;D

Makes one wonder about the fate suffered by the right one :o ;D

Wiring fault springs to mind, hesitation under speed would point a finger at a faulty coilpack as jonnycab said.

My 2.3 feels like that though, sometimes it feels like it couldn't overtake a milk float, other times it flies along like it's got 250bhp. I'll check the EGR on mine too, sounds like a good idea.

Regards, Bruce.

Title: Re: still got problems
Post by cscars1 on Nov 19^th, 2006, 8:40pm

hello i checked all the air pipes and they are not split or leeking

i will take the egr valve apart tomorrow and check for any problems

i will block the pipe off and see if thats the problem as for coil packs , i dont think it is them as the car runs ok when parked ,only under load , cruising speed fine under 30 ish and normally plays up at about 50 +

Title: Re: still got problems
Post by cscars1 on Nov 19^th, 2006, 8:40pm

Title: Re: still got problems
Post by cscars1 on Nov 19^th, 2006, 8:41pm

Title: Re: still got problems
Post by jonnycab on Nov 20^th, 2006, 12:30am

I had exactly the same symptoms on my old 2.0 16V Scorp.

It ticked over fine, even revved okay. But under load it would 'hiccup'.

It felt like fuel starvation, but it was the coil packs.

Just because the coil packs look okay, it doesn't mean they are okay ;)

.......still bet my left nut on it ;D

Title: Re: still got problems
Post by jonnycab on Nov 20^th, 2006, 1:02am

on 11/19/06 at 20:41:32, cscars1 wrote:

You may have a problem getting the EGR valve apart....as it is a sealed unit.

You can check for tightness to the exhaust manifold, & tightness of pipes....especially the brass ring between manifold pipe & EGR.
But I doubt if the EGR is the problem, & it could well be waste of time :)

Title: Re: still got problems
Post by cscars1 on Nov 20^th, 2006, 9:46am

if it is the coil packs , i suspect there not cheap

Title: Re: still got problems
Post by jonnycab on Nov 20^th, 2006, 10:23am

on 11/20/06 at 09:46:14, cscars1 wrote:

if it is the coil packs , i suspect there not cheap

£60.00 each, I seem to remember. You may be able to get a good second hand pair from someone on here though. :)

Title: Re: still got problems
Post by hellblue on Nov 20^th, 2006, 10:48pm

I had this,try removing the egr valve to clean it & the seat (carb cleaner) opperate by hand then make sure it then seats ok. But it may be the pressure transducer so if you still have trouble try pluging the vacuum pipe to the egr valve,it wont hurt if the egr is not working,you can spend ££££ on parts to find a fault like this,only to find out it may have been a cheap fix

Title: Re: still got problems
Post by cscars1 on Nov 20^th, 2006, 11:33pm

hi
i have tested the egr valve today

by putting a vacumn pump on the egr valve and you can feel it moving up ok , when releasing the pressure it goes back down
so i think thats ok
its seems to be getting a little better

taking it to manchester tommorrow for a long run
so that should clean it or blow it up

Title: Re: still got problems
Post by cscars1 on Nov 23^rd, 2006, 9:10am

on 11/20/06 at 22:48:36, hellblue wrote:

hi i just been to manchester and the car ran ok , it only had the flat spot at about 2000 revs upto 3000 revs after that it was ok

on the way back i disconected the pipe from EGR valve and the car ran 99% better than before so i think it is the EGR valve
]
if i leave the EGR valve disconnected what problems will i get

Title: Re: still got problems
Post by hellblue on Nov 23^rd, 2006, 10:15pm

None realy mines not been on since i had the trouble.The egr only lets exhaust gas in when at light loads & cruising to lower combustion temps to lower nox levels thus saving the planet!! (a bit) so its not on all the time any way ,if the valve dont close properly you will loose power as the exhast gas is inert so you will have less fuel/air to burn so less bang ~ less go!!

Title: Re: still got problems
Post by Geoff_W on Nov 23^rd, 2006, 10:50pm

In my case it was the lead from the coil pack to the plug, cable insulation was cracked where it plugged on the pack.

New lead sorted it, not going to bet a testicle however unless its Jonnys ;)

Title: Re: still got problems
Post by jonnycab on Nov 24^th, 2006, 2:31am

Okay, the bet's off.

I don't care if I'm wrong.........but my testicles are staying put :P

And if anyone has any ideas ?....then don't.....I'd fight off a pack of gay grizzly bears to keep my gonads ;D

Title: Re: still got problems
Post by TiberiuS on Nov 24^th, 2006, 10:38am

}{ ;D :D >:( ;)

Title: Re: still got problems
Post by Geoff_W on Nov 24^th, 2006, 1:30pm

Good decision
;D