Hi
Anyone heard of a petrol car suffering from a blocked cat?
I thought only diesels had this problem?
Ford main dealer claiming that the reported lack of power may be due to a blocked cat and want to remove them to check?
I think the problem is due to a failed IMRC unit.
many thanks for your input.
{header changed to make less vague and to include a brief summary of question being asked}
Edited by Dynamic Dave on 02/06/2009 at 20:07
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I have heard of the guts of a cat falling to bits and causing problems, I suppose that would count as a blocked cat, but not by exhaust fumes, which as you know, looke pretty clean on a car compared to a diesel.
Has it been damaged by knocking, accident, jacking?
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Doesn't the 2.5 have three or is it four cats??
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I think it has at least two cats.
No known problems with damage and no strange noises and the car runs fine, smooth, just a lack of get up and go.
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Yes it does happen to petrol cars, I have seen it with my own eyes. If I remember correctly the honeycomb centre part had come loose, turned around somehow and blocked off the flow for the exhaust gas. It was a few years ago now and I do recall that it was sufficient to stop the car from actually running at all.
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Doesn't the 2.5 have three or is it four cats??
My old 2001 Mk3 2.5 had three, one on each downpipe and one underneath.
BIL had a collapsed cat an a Granada V6, same symptoms as above, lack of get up and go.
Edited by kith on 03/06/2009 at 12:45
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Hi,
I have the same problem with mine at the moment same year as yours and same engine, I am at the point were its not fun to drive any more the car feels heavy and slugish to drive. But am hoping to get a ford mechanic to look at it for me and will let you no what the he comes up with.
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Just to let you know that I had my car fixed. Removed the 2 pre cats- partially blocked and replaced the main cat ( partially blocked). I used an independent specialist. The car is transformed, even smoother but now fast, even economy has improved to ~30 mpg.
The only fly in the ointment is that now the engine warning light has come on- due to poor emissions, ( still legal thoough). I am getting this problem fixed at the weekend, I hope.
next move is improve the brakes, and major service.
good luck
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Just make sure that the management light isn't due to a fault that's damaging the cats. A misfire or fuelling problem could wreck the new cats very quickly.
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I have been searching for a post anywhere that is similar to my problem
I have a a 2.5 v6 and it is gutless ! when it is under load and at 3000 rpm it just dies
It has had a full service and a replacement MAF the next thing to try apparently is the cat - can I ask what yours cost to fix ... am I going to need a bank loan :-)
regards
M
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Total fix was about £1200.00
I did the main cat first -replaced with new, and had the two precats removed.
Some months later I had the two new pre cats installed.
The cats were all partially blocked and there is no way of clearing them.
Overall I would recommend that you get it fixed in one go- should be cheaper overall.
Try a price from Ford first, then get a price from a good independent garage.
Now I have spent so much on it I will be keeping it for a while.
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***!%@@$$^^&&***** ouch !
M
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I had a problem with a back box that corroded internally and let the wadding block the outlet.
I shaped a piece of wire into a hooked end and went 'fishing' down the tailpipe. I pulled out copious amonts of wadding. I removed the back box and fished it all out from the other end as that had a larger hole closer to the box.
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