Had the car in the garage for a cam belt change, 2010 Mundaneo, 150k. The car was running perfectly well previously and upto it going into the garage.

After getting it back it misfires when cold. Revs to about 2500rpm then misfires, splutters. After it has warmed up it’s all good.

They had it back and said it was because I had let it go low on fuel, fine it has been low on fuel and it is 6 years old, 150k miles but the filter should sort that. Also said they fixed it with a flush etc but as I drove off it was exactly the same.

I am letting them have it this week to get it fixed and they say they will get a diesel specialist to look at it! But they keep changing their tune from dirty fuel to fuel injector issue.

Was fine before it went in and I am not buying it as coincidental that it is now misfiring?

What are my options? Hope they fix it and drive off with a cheery wave saying they broke it they can stick their bill up their a%&e! Suck it and pay? Get a report and go legal! I have no idea how much it will be or what the issue is but giving them an opportunity to fix seems fair!

Have thought of bombers, wee in shoes and hoof in slats.

talking utter pish about the low fuel/injectors thing …especially as it goes away when warmed up

could be a multitude of things though.

I reckon they have dismantled a bunch of stuff to get at the cam belt and may have disturbed a sensor (ive not worked on a mondano diesel before – so im speculating) but things that make those symptoms for me in the past – dead or dying MAF or timing fuel pump advance could be out by a fraction (depending on the tensioner set up)

Has anyone run PROPER diagnostics on it ? – and i dont mean a 9.99 ebay job i mean a propper unit that can be trusted……

Thanks!

It’s a local garage! So probably fleabay diagnostic unit. Good to know that it could be something out a fraction should be an easy fix, I agree it “should” be something they disturbed doing the cam belt.

it was because I had let it go low on fuel,

They are talking bollocks on the causes

Again i would suspect they have knocked or damaged a sensor of some kind when doing the cam belt

At a guess I’d say that they’ve got the timing slightly out, easy done.

Ok so the collective seems to think the bill should fall to the garage! ALso it should be a relatively easy fix! Just wish they did it right first time! Bit pee’d off back and forth.

Hopefully they fix it and when they call while away and start tell me it needs ABC I can just collect and drive off 😀

No, it’s unlikely to be the belt a tooth out, as it would happen all the time. More likely to be, as stated above, a sensor has been disturbed, hence giving a rough running when cold. Mass air flow sensor would be my first call, possibly the fuel injectors need a clean (fuel additive).
Is it coming up with any codes? Though you probably havent got a reader.

My cars diesel injectors died at 125k. I was rationalising it got better when warm, better quality diesel etc etc. But really, it was past it. It spluttered and misfired and then diesel injector specialist confirmed the four injectors were shot and leaking diesel into the engine or some such and not operating properly. check your oil.levels, if above max it could be putting diesel into the oil levels…

How much for Mondeo diesel injectors!!!!!!!!!!!

Sounds expensive.

Ouch! My Mazda 6 diesel suffered from loose bolts on the injectors allowing combustion gases into the oil where they crystallised blocking the oil pump strainer. Doesn’t seem to have damaged the engine but the injectors needed replaced: Bill came to £2100!

Chicken man similar to mine, Bosch injectors. 1400 from Indy or 2000 from main dealer (Hyundai).

When the 2.0 TDci Mondoe engine came out there was a massive recall – we were replacing injectors/pumps/fuel rails etc faster than Delphi could produce them! Abiut a month back order from the factory 🙂

If you get a diagnostic read out of the codes it will tell you what the problems are. However, it takes someone with some understanding of the system to interpret what it really means.

Cheapest fix is the crank sensor that gets covered in disintegrated dual mass flywheel pieces. Take it out remove metal from magnet/sensor and put it back in.

It is a bit rum if it went in fine and comes out with a misfire after they have serviced it.

Get different quotes. A bad garage will guess and use your wallet to step up to the eventual cure.

Is it a 1.8 diesel. If so has the garage done both the timing belts as the second belt is a wet belt on that year and many small garages don’t even know it’s there. The second belt is the one that runs the injector pump so if it’s not been changed or timed up wrong could be causing injector type issues.

I thought the second belt wasn’t supposed to be changed (1.8 owner and due a belt change)

I know of at least two local garages who have changed the main belt on 1.8d fords only to have the car brought back on a trailer within a week when the wet belt has destroyed itself.I think it was supposed to be a longer life belt when originally fit but the service schedule has been reduced bease of problems mainly the teeth rotting off the belts.

It’s a 2.2. They have it while I’m away but quite cautious if they want to use trial and error as a diagnostic methodology.

If they’re footing the bill (which they should be), does that matter?

Thanks for the info flee5 – wasn’t going to get the second belt changed!

(though there’s conflicting info on the belt change schedule anyway – I think strictly speaking mine is well overdue based on mileage)

They’ve got the timing belt one notch out.