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        General >> Problems >> White smoke from exhaust 24v
        
(Message started by: barrie on Nov 19^th, 2005, 10:10pm)

Title: White smoke from exhaust 24v
Post by barrie on Nov 19^th, 2005, 10:10pm

Hi guys these Scorpios are a challenge, and i think mines winning loll
Revd my car up today as i was trying to get some warm air into the car and a horrible tapping noise appeared at the drivers side of the engine towards the back
I think it might be the exhaust manifold cracked
can anyone tell me if this sounds right and what i have to do to get to the manifold
Thanks in advance

Title: Re: Noise from engine 24v
Post by Highlander on Nov 19^th, 2005, 10:48pm

possibly the cat broken up inside? does it rattle?

Title: Re: Noise from engine 24v
Post by Paul B on Nov 19^th, 2005, 10:51pm

The manifolds can crack. I know because one of mine has.

But this does sound as if it could be one of the cats as mentioned. I'd start by checking that out.

Title: Re: Noise from engine 24v
Post by barrie on Nov 20^th, 2005, 3:30pm

Sorry forgot to mention that there is a lot of white coloured smoke when i rev up

Title: Re: White smoke from exhaust 24v
Post by Highlander on Nov 21^st, 2005, 12:04am

Do you know anyone nearby who can give you an OBD scan?

Title: Re: White smoke from exhaust 24v
Post by barrie on Nov 21^st, 2005, 12:14am

HI Thanks for the replys
I have a lead but i am having problems using it at the moment as my laptop is playing up
i have scaned it and i got these codes

p1400
p1405
p1151
po171
po174

no idea what they mean any ideas

Title: Re: White smoke from exhaust 24v
Post by Highlander on Nov 21^st, 2005, 12:24am

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

P0171 System Too Lean - Bank No. 1.
P0174 System Too Lean - Bank No. 2.
P1151 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 2.
P1400 Differential Pressure Feedback Electronic Sensor circuit Low Voltage
P1405 Differential Pressure Feedback Electronic Sensor circuit Upstream Hose.

Title: Re: White smoke from exhaust 24v
Post by barrie on Nov 21^st, 2005, 5:07pm

Thanks for that Highlander
Any ideas what i have to do to sort these problems out

Title: Re: White smoke from exhaust 24v
Post by Highlander on Nov 21^st, 2005, 5:23pm

Nope, im new to the OBD stuff myself but hopefully someone else can shed light on it

Title: Re: White smoke from exhaust 24v
Post by howiedintheplace on Nov 22^nd, 2005, 1:31am

Barrie

Not sure what the OBD codes indicate but white/light grey smoke is small amounts of oil burning, not a good sign. Also possible coolant burning also.

How is the engine running apart from the tap tap tap. Does it tick over O.K, does the noise change depending on revs & does it get louder when you rev the engine or rev it then let it idle? Also does it seem as powerful as normal, anything different to normal ???

Title: Re: White smoke from exhaust 24v
Post by Octavian_P on Nov 22^nd, 2005, 7:55am

White smoke can also appear when condensation forms in the exausts

Blue smoke means it's burning oil

Black smoke .....hmmm that's really nasty...or it burns to much fuel (to rich)

Title: Re: White smoke from exhaust 24v
Post by barrie on Nov 22^nd, 2005, 8:22am

Hi Dave

The engine is running ok apart from a slight ticking, it sounds like a slight blow from the maifold aria on the drivers side. It ticks over ok wih no loss to the water or oil and it doesnt get any louder with revs but it isnt as poerful as it was.

I have just had it in for mot and it failed on the cat test, but i am more concerned about the white smoke.

Could it be that the cat has failed and blocked the exhaust, would that cause the smoke ?

Title: Re: White smoke from exhaust 24v
Post by howiedintheplace on Nov 22^nd, 2005, 11:26am

Anything's possible mate what did the tester say?

It all depends on how much smoke we are talking about here, on startup a bit of smoke is not uncommon for a few minutes as sometimes condensation builds up & it has to clear as Octavian_P said.
It is when it does it after the engine has been run for a while, can be small amounts of oil or coolant.
The more oil gets burnt the darker the colour usally.

Does sould like the CAT at the moment so get it replaced & see what happens.

Title: Re: White smoke from exhaust 24v
Post by howiedintheplace on Nov 22^nd, 2005, 6:52pm

I have sent you a pm Barrie.

Title: Re: White smoke from exhaust 24v
Post by barrie on Nov 24^th, 2005, 6:10pm

Thanks for the replys guys

i had the exhaust checked today at 3 independent garages, as i never take the advice of just one. All three confirmed that the baffles had gone in both the middle section of the exhaust. But they said that the cats were ok, dont know how they know that by just banging them

Would this cause the smoke problem ?, which is not too bad today but there again it s not as cold as it has been.

All three was not interested in the ticking noise from the front of the car near the manifold aria, probably because it means stripping the heat shield off. They were more interested in selling me tyres as there on offer at the moment

I have it booked in our local garage and i will let you know how i go on

thanks for all the help guys

Title: Re: White smoke from exhaust 24v
Post by Snoopy on Nov 25^th, 2005, 7:43am

This white smoke you get .... ????? All cars produce a lot of water vapour and when its cold it appears as white steam behind the car. especially more promenat in cold weather. IS that what you are seeing??????

Title: Re: White smoke from exhaust 24v
Post by Thunderchild on Nov 25^th, 2005, 8:30am

I suggest that you check for any of the vaccuum pipes being loose or disconnected around the inlet manifold. This can cause problems with the fueling of the car and can give virtually all of the symptoms you describe, I know I've had them!! Listen for a hissing sound across the top of the engine and that will lead you to the leak.

HTH

Thunderchild