|
|
|
May 17, 2012 15:18:20 GMT
|
|
Bit of an ongoin thing but getting very annoying now hopefully someone can share some light on it, I bought a 2004 Mg zt last year 1.8 160 turbo with only 20 thou on the clock always wanted one and was then doing a lot of motorway miles.a month after I bought it it started misfiring now and again at high revs so I thought the worst had happened and the head gasket had gone took it back to the garage,who sniff tested it not gasket after going back five times they changed spark plugs coil packs and leads and cured it for a while then started misfiring again but only intermittently then stopped.
Car has now done 42 thou miles and same problem last night was the worst so checked water and used a small amount but not a lot no sign of head gasket failure doesn't over heat and is only intermittent, the car is standard but now only used to do 5 miles a day which I know is not helping does anyone have any idea or has come across a similar problem?
|
| |
|
|
|
|
|
|
|
May 17, 2012 15:48:34 GMT
|
|
So swapping ignition stuff fixed it, but it came back?
If so, I'd look at the plugs and leads first off - plugs don't like lots of short journeys and pattern leads are often of awful quality. My parents had a set of pattern leads for a Vauxhall a few years ago that lasted about 3 weeks...
Did they do a compression test too? On the K series it's not possible to blow the HG between cylinders (due to the open deck block) but it might reveal any HG issues.
Now you know it uses a little water, fo goodness sake keep it topped up - nothing kills a K quicker than lack of water.
|
| |
|
|
|
|
|
May 17, 2012 16:00:39 GMT
|
we had a K series in last month, that had a head gasket problem, but strangely revealed nothing on a sniff test, how did we know it was the head gasket? well after running it and not finding anything, we left it to cool and when we re started it, it would not start, wipped the plugs out and spun the starter, to find a jet of water fire out of the plug holes  we never looked at the gasket as the old bloke owner, had re model' d every panel, so it wasn't worth repairing, owner retired from driving and scrapped the car! not that I am saying that that's your problem! |
| |
Last Edit: May 17, 2012 16:01:09 GMT by ianboyd
|
|
|
|
|
May 17, 2012 16:55:06 GMT
|
So swapping ignition stuff fixed it, but it came back? If so, I'd look at the plugs and leads first off - plugs don't like lots of short journeys and pattern leads are often of awful quality. My parents had a set of pattern leads for a Vauxhall a few years ago that lasted about 3 weeks... Did they do a compression test too? On the K series it's not possible to blow the HG between cylinders (due to the open deck block) but it might reveal any HG issues. Now you know it uses a little water, fo goodness sake keep it topped up - nothing kills a K quicker than lack of water. Thanks will try new leads tomorrow fingers crossed |
| |
|
|
|
|
|
May 17, 2012 16:57:00 GMT
|
we had a K series in last month, that had a head gasket problem, but strangely revealed nothing on a sniff test, how did we know it was the head gasket? well after running it and not finding anything, we left it to cool and when we re started it, it would not start, wipped the plugs out and spun the starter, to find a jet of water fire out of the plug holes we never looked at the gasket as the old bloke owner, had re model' d every panel, so it wasn't worth repairing, owner retired from driving and scrapped the car! not that I am saying that that's your problem! Mmm I wish it was that obvious but that's the problem I'm having I don't want to risk spending 500 quid on having the gasket done unless I'm 100 percent sure |
| |
|
|
|
|
|
May 17, 2012 17:14:34 GMT
|
|
Inlet manifold gasket problem. They are bad at the best of times, let alone with some boost!
When the gasket starts to go, it can allow water into the inlet track.
|
| |
Last Edit: May 17, 2012 17:17:40 GMT by mattxr3i
MK4 Ford Escort XR3i - Standard
MK6 Ford Escort GTi - Track Car
|
|
|
|
|
May 17, 2012 18:00:36 GMT
|
Inlet manifold gasket problem. They are bad at the best of times, let alone with some boost! When the gasket starts to go, it can allow water into the inlet track. Great thanks will try that one too |
| |
|
|
|
|
|
May 17, 2012 21:39:22 GMT
|
Inlet manifold gasket problem. They are bad at the best of times, let alone with some boost! When the gasket starts to go, it can allow water into the inlet track. This. They almost always go between cylinder 3 and 4. Yours shows the classic symptoms. They're cheap, and a couple of hours spannering should see you get it changed. |
| |
|
|
|
|
Mg zt misfire chompysnake
@GUEST
|
May 17, 2012 22:20:39 GMT
|
I have just had the EXACT issue you are describing with our Toyota Carina E 1.8 Auto (even did a repair guide)... with a running temperature engine (mainly on the motorway) it would misfire terribly (but intermittently), after lengthy researching and getting fed up of 50 mph at 4000rpm whenever it was playing up, we found it to be 1 injector failing .... not dirty but definately failing! We did a slap dash diagnosis by pulling each injector plug in turn until we found which one it was, Once we found the culprit every time it was misfiring the trick was stop the car. turn it off, pull that injector plug off and then refit after a couple of seconds and then it would run perfectly until it decided the injector was broken again! If you have no HG symptoms at all I would definately say that this is a safe place to look first! The K series engines are fantastic units and I have owned many metro's beyond 180k on the clock and never had issues with them blowing head gaskets 1.4 engines mainly ... I love how people blame HG failure first  If your coolant system is maintened well and you service regular you should be safe ! Hope this helps |
| |
|
|
|
|
Mg zt misfire chompysnake
@GUEST
|
May 17, 2012 22:24:20 GMT
|
So swapping ignition stuff fixed it, but it came back? If so, I'd look at the plugs and leads first off - plugs don't like lots of short journeys and pattern leads are often of awful quality. My parents had a set of pattern leads for a Vauxhall a few years ago that lasted about 3 weeks... Did they do a compression test too? On the K series it's not possible to blow the HG between cylinders (due to the open deck block) but it might reveal any HG issues. Now you know it uses a little water, fo goodness sake keep it topped up - nothing kills a K quicker than lack of water. I hear alot of reports about Carina's showing these issues when an injector fails (which is common)... for some reason an injector breaking down will be temporarily repaired with ignition system replacement |
| |
|
|
|
|
|
May 17, 2012 22:52:29 GMT
|
|
Thanks for all the replies will let you know how I get on.
|
| |
|
|
|
|
|
May 18, 2012 13:38:33 GMT
|
|
Well took it too my mates garage today after not using it for a couple of days and all the pipes were solid and the system was pressurising so had to leave it there to get the head gasket done not good..
|
| |
|
|
|
|
Mg zt misfire chompysnake
@GUEST
|
May 18, 2012 22:24:17 GMT
|
 bad news then ... hope you get it sorted |
| |
|
|
If your coolant system is maintened well and you service regular you should be safe !
bad news then ... hope you get it sorted