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Forums › The Car › 206 Problems › Engine shaking, car stalling when cold, undriveable |
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 Posted: Sat Sep 06, 2014 5:30 pm |
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Joined: Sep 06, 2014
Posts: 3
Trade Rating: 0
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Hi, new to this forum and sadly my first post is a problem,
I will spare you the details of the many many problems that I have had with my 206 1.1 and get straight to this issue. After a major oil leak and new engine being installed into the car, the engine bay was covered in oil and coolant - so I called in a "trained" engine cleaner: long story short, he soaked the he'll out of everything and it started dieing as he was cleaning it -- he got a little scared and left in a hurry!
Now the problem with the car is that it seems like it has a massive misfire, it's backfiring constantly out of the exhaust, it stalls straight after starting when cold unless I keep the revs up, it is undoubtedly undriveable as you have to floor the throttle to even move but then it might stall (especially in reverse). Also the engine is shaking massively back and forth amongst other issues.
So far I have spent ages drying connectors, disassembling many engine parts, replaced the sparks to no avail. I also read the codes and there were only 2 (coil pack a and b failure) but this was due to me carrying out a compression test with coil off -- cleared these and they haven't come back, btw compression seemed ok.
So I ask could anyone suggest anything for me to try and resolve this issue, it would be greatly appreciated! (sorry for the long post!)
Thanks
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Posted: Sat Sep 06, 2014 8:24 pm |
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Joined: Jan 14, 2014
Posts: 758
Trade Rating: +2
Location: London
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Firstly welcome to 206info,
Secondly, if the compression test came back OK & there is no loss of compression then it can only be a loss of spark or/and air to fuel ratio is off.
Ideally you need to find out if it's a single cylinder or all of them misfiring. It would help discard potential problems.
What plugs did you use out interest? NGK's have been known to cause the 206's some issues over the past, not for everyone but majority tend to avoid.
There is a whole host of others things it could be but until you know if it's a single cylinder or all of them it's not worth second guessing.
Also don't worry about the engine shaking, it's only doing so because of the misfire, 9/10 time it'll stop once you've solved your misfire issue, if it doesn't then check your engine mounts.
Also I've sent you a PM.
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Posted: Sun Sep 07, 2014 12:05 am |
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Joined: Jan 29, 2011
Posts: 6526
Trade Rating: +10
Location: Westhoughton, Lancashire
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What were the compression ratios?
Possibly an ecu issue with the engine swap. What year is your car and what year is the donor engine out off?
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Posted: Sun Sep 07, 2014 4:07 am |
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Joined: Sep 06, 2014
Posts: 3
Trade Rating: 0
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| Vexs wrote: |
Firstly welcome to 206info,
Secondly, if the compression test came back OK & there is no loss of compression then it can only be a loss of spark or/and air to fuel ratio is off.
Ideally you need to find out if it's a single cylinder or all of them misfiring. It would help discard potential problems.
What plugs did you use out interest? NGK's have been known to cause the 206's some issues over the past, not for everyone but majority tend to avoid.
There is a whole host of others things it could be but until you know if it's a single cylinder or all of them it's not worth second guessing.
Also don't worry about the engine shaking, it's only doing so because of the misfire, 9/10 time it'll stop once you've solved your misfire issue, if it doesn't then check your engine mounts.
Also I've sent you a PM. |
Thanks!
Well I think the compression is still ok, so I better post up the results -- out of curiosity about a week ago before this problem and when it was running fine, I did a wet and dry compression test, the results were as follows from cylinder 1-4: 180psi 180psi 185psi 175psi, and wet: 200psi 200psi 200psi 205psi, and then after it was damaged: 180psi 185psi 175psi 195psi, - I didn't do a wet test this time.
The plugs I used were the recommend NGK's, I was torn between ngk and Bosch and I went with ngk as this is what I've used in all other cars (where Bosch has been known to cause problems), oops that's my bad! Could it still be the plugs even though it had the same model of ngk's in before?
Good, I thought so as I can see it moving back and forth on the left hand side engine mount,
So what would you recommend next then, I was worried that after checking almost everything that it could be the ecu has fried or the timing has slipped from the high pressure water and detergent?
Thanks, greatly appreciated!
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Posted: Sun Sep 07, 2014 4:13 am |
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Joined: Sep 06, 2014
Posts: 3
Trade Rating: 0
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| macca1411 wrote: |
What were the compression ratios?
Possibly an ecu issue with the engine swap. What year is your car and what year is the donor engine out off? |
Sorry didn't see this reply first off!
I have posted the compression results in my previous post in psi 
The car is an 03, donor engine from a 2003 Peugeot, also the car had finally been running fine before this incident so wouldn't this rule out an ecu/engine swap problem?
Thanks!
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Posted: Tue Sep 09, 2014 1:28 pm |
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Joined: Aug 04, 2011
Posts: 1343
Trade Rating: 0
Location: Swindon
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If you want to know which cylinder is misfiring there are a number of methods:-
1) remove the plugs and look to see which is fouled or wet, though lack of injected fuel may leave them all the same colour and dry so not a 100% check.
2) remove any exhaust manifold shield and with the engine cold put water on each branch of the manifold. the one(s) that don't steam off or steam off much later than others are the likely misfiring cylinders.
3) Same as 2 above but instead of using water buy an infra-red thermometer and the coolest branch is the one wiht the misfire.
None of this tells you why it is misfiring but it does help with diagnosis as once you know the cylinder you can at least swap a plug and see if the misfire follows the plug. Adter the plug test you can do the same with an injector and if the misfire follows the injector you know it is injector or injector trigger (ECU) or connector.
Try not to drive it to much as a misfire and unburnt fuel will destroy your Lambda sensors and / or Cat.
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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)
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