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 Posted: Fri Jul 04, 2014 9:01 am |
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Joined: Jul 04, 2014
Posts: 6
Trade Rating: 0
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Hi, I hope someone can help. I recently got a 2000 206 which had just had the part of the exhaust system before the cat professionally replaced. It passed the NCT (MOT) with flying colours so I thought it was a good car.
A couple of days after getting the car, I was driving on the motorway and it started losing power. I pulled off the motorway and the boyfriend had a look, only to find that the cat was red hot. We had no choice but to drive to the local autoparts shop where it was suggested that we order a new cat. We were also told that it would be a good idea to remove the cat that was on the car as it would make getting home easier. So we did this.
The new cat arrived and when the boyfriend went to fit it, he discovered that the section coming from the engine toward the cat was covered in gun gum (apparently this is very bad) but he cleaned it all out and welded in the new cat. We took the car out for a spin to get the cat up to temp as suggested, and the same thing happened again. The cat was red hot, there was power loss and the damn thing is noisy as hell.
So to get to the point, does anyone know what the deal is?? I have never had such problems with a car before. A friend has a diagnostic kit which revealed nothing wrong. It is beyond a joke at this stage.
Any help would be greatly appreciated.
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Posted: Fri Jul 04, 2014 9:22 am |
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Joined: Jan 14, 2014
Posts: 758
Trade Rating: +2
Location: London
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Hi Davina, just a quick question. Is the car over heating at all? Is the fan kicking in when it should do?
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Posted: Fri Jul 04, 2014 9:55 am |
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Joined: Jan 29, 2011
Posts: 6526
Trade Rating: +10
Location: Westhoughton, Lancashire
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It's normal for a cat to run at temperatures upto 1600 degrees F (870C), and it only starts working correctly above around 500 degrees F (260C). Anything above 2000 F (1093C) is bad.
Any type of exhaust paste before the cat can ruin the cat, so your boyfriend was right to remove all of this. I can't understand why he had to weld a new cat on though as they are bolt on.
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Posted: Fri Jul 04, 2014 10:38 am |
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Joined: Jul 04, 2014
Posts: 6
Trade Rating: 0
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Vexs - I haven't noticed the car overheating at all.
Macca - The new cat had a larger diameter pipe heading toward the back box than the original did. He did contact the bloke in the auto parts place who has tons of experience with 206s who recommended welding it. Is it normal for the cat to actually become cherry red after a 5 mile round trip? A few sites have suggested that changing the plugs and/or the coil pack can remedy cat problems...would you agree?
Thanks a million for the replies!
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Posted: Fri Jul 04, 2014 2:42 pm |
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Joined: Feb 07, 2010
Posts: 3666
Trade Rating: +59
Location: Scotland
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Buy a 2nd hand GENUINE cat or bite the bullet and buy new.
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| '98 Nile Blue 306 GTi 6
'04 Obsidian Black 206 GTi 138 | |
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Posted: Fri Jul 04, 2014 3:28 pm |
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Joined: Feb 07, 2010
Posts: 2718
Trade Rating: +6
Location: UK
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I would say you have another issue, it shouldn't be glowing. Any engine lights? Had it fault scanned?
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Posted: Sat Jul 05, 2014 1:19 am |
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Joined: Feb 08, 2010
Posts: 7045
Trade Rating: +5
Location: In the garage
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Sounds like unburnt fuel could be getting into the cat. Or there could be a few other logical reasons.
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| 2001 GTi 138, Bilstein Sprint dampers, H&R springs, 21mm Peugeot Sport torsion bars, 22mm rear ARB, Peugeot Sport Group A wishbones, 283mm discs, Goodridge stainless hoses, Maniflow 304 grade 4-2-1 2.5" manifold and system, 200 cell cat, Richard Longman head, 45mm Jenvey throttle bodies, 9.5mm TB spacers, 90mm air horns, Jenvey throttle linkage, Jenvey fuel rail, Aeromotive and Goodridge fuel fittings and braided hose, ITG sausage filter, Radtec custom radiator, Piper Ultimate Road cams, Piper vernier pulleys, Omex 600 ECU. Saxo electric PAS pump, Vibra Technics engine mounts. Samco coolant hoses, TTV steel flywheel, 4.76 final drive ratio, 307 CC 180 ratios. 2019 BMW 530i. 2017 Mercedes C300 convertible. | |
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Posted: Sat Jul 05, 2014 3:49 am |
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Joined: Jan 29, 2011
Posts: 6526
Trade Rating: +10
Location: Westhoughton, Lancashire
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| Steve206 wrote: |
| I would say you have another issue, it shouldn't be glowing. |
I used to get a glowing manifold on my 1979 Ford Pinto 2.0 engine, although that did have a few changes made to it to increase the output to around 120bhp.
OP, you could do with getting some live data readings.
I don't think we have established which power unit you're running yet. That information might be useful.
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Posted: Sat Jul 05, 2014 4:23 am |
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Joined: Jul 04, 2014
Posts: 6
Trade Rating: 0
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Steve206 - There are no warning lights coming on at all, which makes things more difficult to diagnose. To make matters worse, the boyfriend was in an accident yesterday and flipped his C180, ending up on the roof in a ditch so I really need to get this sorted.
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Posted: Sat Jul 05, 2014 4:24 am |
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Joined: Jul 04, 2014
Posts: 6
Trade Rating: 0
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Macca - How would I find out what which power unit is in the car?
Thanks again for the replies lads.
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Posted: Sat Jul 05, 2014 4:32 am |
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Joined: Feb 08, 2010
Posts: 7045
Trade Rating: +5
Location: In the garage
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The problem will be elsewhere, the glowing cat is just a symptom.
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| 2001 GTi 138, Bilstein Sprint dampers, H&R springs, 21mm Peugeot Sport torsion bars, 22mm rear ARB, Peugeot Sport Group A wishbones, 283mm discs, Goodridge stainless hoses, Maniflow 304 grade 4-2-1 2.5" manifold and system, 200 cell cat, Richard Longman head, 45mm Jenvey throttle bodies, 9.5mm TB spacers, 90mm air horns, Jenvey throttle linkage, Jenvey fuel rail, Aeromotive and Goodridge fuel fittings and braided hose, ITG sausage filter, Radtec custom radiator, Piper Ultimate Road cams, Piper vernier pulleys, Omex 600 ECU. Saxo electric PAS pump, Vibra Technics engine mounts. Samco coolant hoses, TTV steel flywheel, 4.76 final drive ratio, 307 CC 180 ratios. 2019 BMW 530i. 2017 Mercedes C300 convertible. | |
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Posted: Sat Jul 05, 2014 5:06 am |
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Joined: Jan 29, 2011
Posts: 6526
Trade Rating: +10
Location: Westhoughton, Lancashire
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| Davina wrote: |
| Macca - How would I find out what which power unit is in the car? |
What size engine is in it?
If unsure about the engine size, the VIN can help
206info.co.uk/Forums/v...t=557.html
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Posted: Sun Jul 06, 2014 6:22 pm |
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Joined: Jul 04, 2014
Posts: 6
Trade Rating: 0
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Apologies for not getting back here sooner, I have sent the 206 off to a mechanic to have it done properly. Once I have a diagnosis and/or solution I'll post it here. Thanks again for all the input!
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Posted: Wed Jul 09, 2014 4:43 am |
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Joined: Jul 04, 2014
Posts: 6
Trade Rating: 0
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A new coil pack fixed the problem! Thanks for all the help lads!!
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