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 Posted: Thu Apr 03, 2014 2:02 pm |
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Joined: Apr 03, 2014
Posts: 3
Trade Rating: 0
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Hi I purchased a 206 a few months ago. It hadn't ran for a long time. Around a month ago the head gasket failed, this was because emulsified oil in the cooling system had rotted the head gasket. The emulsion was flushed out, the gasket replaced and the head was skimmed. A few weeks after the work was carried out when the car was started from cold it would run on three cylinders for the first ten seconds or so then run fine. I replaced all of the spark plugs to try and resolve the problem but while doing so I snapped an "air way nozzle" off the inlet manifold so I replaced it. I started the car and it would rev up and down ranging from 800rpm to 2000rpm . I tried to identify the problem and noticed that when I touched the temperature sensor on the cylinder head it would have a small effect on the revs. The problem has progressively gotten worse and now when the car starts it runs on three cylinders for the first few seconds then climbs to 4000rpm and dies and the temperature gauge does what it wants, but once up to temperature it runs perfectly. Could it be a faulty temp sensor?
Any help on identifying the problem would be much appreciated, Matt.
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Posted: Fri Apr 04, 2014 4:26 am |
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Joined: Jul 04, 2013
Posts: 31
Trade Rating: 0
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If you can get hold of a code reader plug it in and see what faults come up ,Maplins sell one for a reasonable price .
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Posted: Sat Apr 05, 2014 8:36 am |
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Joined: Apr 03, 2014
Posts: 3
Trade Rating: 0
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Thanks for the reply. I soldered a new cylinder head temperature sensor block connector on and it works perfectly now.
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Posted: Sat Apr 05, 2014 3:37 pm |
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Joined: Aug 04, 2011
Posts: 1343
Trade Rating: 0
Location: Swindon
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I would do a compression test.
Another good trick is to buy an infra red temperature sensor (cheap on auction sites) and measure the temperature of each exhaust manifold header. The coolest one will be the cylinder with the misfire.
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| Morris 1000, Austin 1100, Escort Mk2, Fiat Mirafiori, Alfa 33, Alfa GT Junior, Alfasud, Alfetta GTV (2x), Alfa 164 3.0 V6, Alfa 164 2.0, Alfa 75 V6, Alfa 156 2.4 (diesel remapped 200bhp), Alfa 147 GTA (3.6 295bhp), Alfa 159 (diesel remapped 245bhp 300ft.lbs @ 2500rpm)
Why isn't my daughter an Alfaholic? | |
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Posted: Sun Apr 06, 2014 7:10 am |
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Joined: Apr 03, 2014
Posts: 3
Trade Rating: 0
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The car doesn't misfire now that I have replaced the block connector. It runs perfectly.
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Posted: Mon Apr 07, 2014 8:09 am |
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Joined: Aug 04, 2011
Posts: 1343
Trade Rating: 0
Location: Swindon
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Sorry, my web browser didn't refresh so I posted without knowing you had fixed the fault.
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| Morris 1000, Austin 1100, Escort Mk2, Fiat Mirafiori, Alfa 33, Alfa GT Junior, Alfasud, Alfetta GTV (2x), Alfa 164 3.0 V6, Alfa 164 2.0, Alfa 75 V6, Alfa 156 2.4 (diesel remapped 200bhp), Alfa 147 GTA (3.6 295bhp), Alfa 159 (diesel remapped 245bhp 300ft.lbs @ 2500rpm)
Why isn't my daughter an Alfaholic? | |
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