My MPV is missing (more when petrol low) and the petrol consumption has gone right up. Thinking Coil pack? Spark plugs? Not sure really.
franc123,
Jul 16, 10:49am
How long has it been since its had plugs, air and fuel filters etc? You might already know the answer.
thejazzpianoma,
Jul 16, 12:55pm
1. Get it seen to a.s.a.p you don't want to drive a modern car around while it's missing as you can destroy your VERY expensive catalytic converter.
2. My advice is don't guess, there are many potential causes of a miss, take it in and have it scanned for fault codes as a starting point. Other parameters like fuel trim, air flow, fuel pressure etc can be checked while the scanner is hooked up.
The only exception being if there are overdue maintenance items (like plugs) that need doing anyway, you may as well do those as a starting point.
If you really want to DIY this one, there are people here that can help, but it would be wise to invest in at least a basic scanner (and ideally one that will do more than just OBD2 for your vehicle). You can test things manually but it's potentially a fairly tedious process.
Best of luck with it.
leehay01,
Jul 17, 3:42pm
God I would't DIY (-: Problem is I've taken in in twice and had two different things "fixed" But its still missing - am taking it to another Mechanic but am a bit over it and thought maybe I should research before taking it again.
thejazzpianoma,
Jul 17, 3:46pm
Unfortunately this is a bit of a problem in our motor trade, many mechanics are in too big a rush to change parts rather than taking the time (or having the knowledge and equipment) to diagnose things properly first.
Research is a great thing, however we don't really have enough to go on to narrow things down here. Why don't you look up and post what was replaced, see if any fault codes etc were mentioned on the invoice. Or even better post exactly what the inovice says?
No guarantees but there might be a clue or two there to start things off. Also, you could ask on here who is good at diagnostics in your area.
msigg,
Jul 17, 4:29pm
Auto sparky is probably best to take it to. Also run good fuel in it when fixed, 95 octane is good.
leehay01,
Jul 23, 7:48am
Fixed - third time lucky - well forth
fordcrzy,
Jul 23, 7:56am
and it was.?
leehay01,
Dec 23, 8:04pm
Someone had tried to do a quick fix and taped up the leads but the tape they used melted into the spark plugs and all over the leads grrrrrrr The mechanic showed me the bits he took off.
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