Missfiring issue...

West

West

West

Soldato
Joined
22 Dec 2004
Posts
9,173
Location
Rugeley, Staffs
Hi All,
My Volvo is a wee bit poorly... (2003 S60, 2.0T SE)
Symptoms: I was tootling back on the M6 and came off for me to notice my EML flashing, the car felt choppy and noticed a reduction in power. Took it to get the fault codes read and it was miss-firing on cylinders 2, 3 and 5. (Later on 4 also after a few days)

My first garage were thinking along the lines of the coil packs being borked and suggested I take it to a dealer or indi Volvo garage (Of course I did the latter)
The diagnosis started and over the course of no less than 5 days they have 'said' they ruled out the following:


  • Coil Packs

  • [*]Injectors
    [*]Compression
    [*]Plugs
    [*]Ran with no CAT
    [*]Fuel pump

I had a text this morning asking him for me to ring me and he came out with this:
He thinks that the fly-wheel is 'bent' after a nut off the clutch cover has come off and trashed it and a sensor (Which he belives is causing the misfire?) and wants to rip the gearbox and clutch.. now does this particular explination sound plausable? Because the garage obviously want the labour of diagnosis which as you can imagine if it is as serious as this.. it probably isn't even worth the value of the car...
On a side note I do genuinley feel the car is giving me a middle finger as at the time I was on my way to test drive a new car :/

Any help appriciated :)
 
I would want to know what sensors are installed which can't be accessed unless you remove the gearbox fully..... and why he has come to this conclusion. I can't see how you could install a flywheel sensor that you couldn't access externally.

And if this was the case then you could possibly remove the starter or dirt covers if present and inspect the flywheel for damage without removing the gearbox.
 
Berger said:
I would want to know what sensors are installed which can't be accessed unless you remove the gearbox fully..... and why he has come to this conclusion. I can't see how you could install a flywheel sensor that you couldn't access externally.

And if this was the case then you could possibly remove the starter or dirt covers if present and inspect the flywheel for damage without removing the gearbox.
Click to expand...

I will be going to have a look on Mon and ask him to show me the flywheel (In the hope that it's still in situ) and double check which sensor it is but what gets me is how the missfire would occur as a result of this.
 
I had similar symptoms on my old '97 850 2.5. It was all ignition system but it was distributor driven rather than coil packs. I replaced the dizzy rotor arm and cap, leads and plugs and it ran perfectly after that.

Sounds like your garage might be trying it on, but it's always hard to know without seeing it first hand. Very difficult to bend a flywheel...

As an aside - after rebuilding my mate's Rover 200 track car a few years ago we managed to lose a nut in the bell housing. We didn't realise of course, so off he went for a test drive with me following behind. Suddenly there was a massive plume of oily smoke and we pulled over. Oil continued to poor out of the gearbox. Got it recovered and the stray nut had been fired into the gearbox by the clutch, making a nice mess of the gearbox case and the internals!
 
West said:
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My first garage were thinking along the lines of the coil packs being borked and suggested I take it to a dealer or indi Volvo garage (Of course I did the latter)
Click to expand...


'Of course' - sounds like it might be the cause of a rather big bill now. 5 days to still not diagnose a misfire problem sounds absolutely unacceptable, who is going to pay for 5 days of labour charges? You need to be very careful with independants because quite literally anyone can stuck a sign above a garage with 'Volvo specialist' on it and then proceed to chimp around with your car.

Perhaps the dealer would have charged twice the hourly rate, perhaps more - but not taken 5 days to find the problem.

Also quoting your post was a nightmare, what on earth is all that daft font formatting about!?
 
[TW]Fox;22397618 said:
'Of course' - sounds like it might be the cause of a rather big bill now. 5 days to still not diagnose a misfire problem sounds absolutely unacceptable, who is going to pay for 5 days of labour charges? You need to be very careful with independants because quite literally anyone can stuck a sign above a garage with 'Volvo specialist' on it and then proceed to chimp around with your car.

Perhaps the dealer would have charged twice the hourly rate, perhaps more - but not taken 5 days to find the problem.

Also quoting your post was a nightmare, what on earth is all that daft font formatting about!?
Click to expand...

I completely agree. I had an electrical fault with the Octavia and took it to a well regarded VAG specialist. Firstly they mis diagnosed and replaced the alternator. Then they spent a further 5 days to not find the problem. For my own peace of mind I checked what I thought the problem was (they said that they had ruled it out) and I had got to the bottom of it in 10 minutes.

Dealers for me from now on for anything that isn't routine. Even the routine stuff is barely any cheaper at an independent.
 
West said:
Hi All,
My Volvo is a wee bit poorly... (2003 S60, 2.0T SE)
Symptoms: I was tootling back on the M6 and came off for me to notice my EML flashing, the car felt choppy and noticed a reduction in power. Took it to get the fault codes read and it was miss-firing on cylinders 2, 3 and 5. (Later on 4 also after a few days)

My first garage were thinking along the lines of the coil packs being borked and suggested I take it to a dealer or indi Volvo garage (Of course I did the latter)
The diagnosis started and over the course of no less than 5 days they have 'said' they ruled out the following:


  • Coil Packs

  • [*]Injectors
    [*]Compression
    [*]Plugs
    [*]Ran with no CAT
    [*]Fuel pump

I had a text this morning asking him for me to ring me and he came out with this:
He thinks that the fly-wheel is 'bent' after a nut off the clutch cover has come off and trashed it and a sensor (Which he belives is causing the misfire?) and wants to rip the gearbox and clutch.. now does this particular explination sound plausable? Because the garage obviously want the labour of diagnosis which as you can imagine if it is as serious as this.. it probably isn't even worth the value of the car...
On a side note I do genuinley feel the car is giving me a middle finger as at the time I was on my way to test drive a new car :/

Any help appriciated :)
Click to expand...

Take it to Nic at WF Pye & son, stirchley, south birmingham. By far the best indy in the region.
 
Did he mention what kind of sensor

Does this volvo have a crankshaft sensor built into the crankshaft seal (main seal). I know my vag does but does not mean yours does...lol.
 
[TW]Fox;22397618 said:
'Of course' - sounds like it might be the cause of a rather big bill now. 5 days to still not diagnose a misfire problem sounds absolutely unacceptable, who is going to pay for 5 days of labour charges? You need to be very careful with independants because quite literally anyone can stuck a sign above a garage with 'Volvo specialist' on it and then proceed to chimp around with your car.

Perhaps the dealer would have charged twice the hourly rate, perhaps more - but not taken 5 days to find the problem.

Also quoting your post was a nightmare, what on earth is all that daft font formatting about!?
Click to expand...

Sorry.. I copied it from a works email as I had to type it seperate as I don't have internet access always at work.

I am going to speak to him today to get the final verdict. I'm also taking a mechanic with me. If i'm not happy with what he has said I may consider taking it elsewhere for a 2nd opinnion. (Or is it 3rd now??)

And agreed with your dealer point..

In order for him to justify his 'diagnosis' bill I will be asking him to itemise it.
 
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