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[skippybanger]

i have a 3.2 mv6 with dual fuel, i took it to get a service on the lpg and they said it has a very slight misfire on tick over (to be honest i never noticed it till they said) and to take it to vauxhall for a service.

i took it to vauxhall they said the diagnostic found nothing so they done a block test and both head gasketts have gone, they said it found signs of oil or exhaust fumes in the coolant, however about a year ago my oil cooler went and as most of you will know you can never get all traces of the oil out, so i asked them if that could be thew problem and they said no and a repair would be £1900 or new engine £3750,

finally the car runs spot on after tickover, dont overheat, dont lose water and there is no creamy cap or dipstick, but they say its early stages,

if anyone can help would be good thanks

[feeutfo]

Sounds like 'dangle berries' to me. But either way, not sure there is much you can do about a 'possibly' failling head gaskit other than wait and see. I would certainly wait for more obvious proof of HG failure before doing anything about it. Esp anything that bloody expensive. Do a pedal trick and see what comes up. Its described under paper clip test in maintenance section.
Oh and if you do get the head gaskit done, make sure you get the old gaskit back there should be obvious signs of where its leaked by. But do me a favor, dont get the work done at a dealer, thieving muppets on average. As sounds likely in this case.

[skippybanger]

yeah proper dear, i wouldnt go ther to be honest i couldnt afford that, thanks for your help

[feeutfo]

maybe some more experienced members can put your mind at rest. Always worth getting another opinion.

[VXL V6]

Is the missfire on petrol, LPG or both? LPG more telling of weakened ignition system.

Missfire could be a crack is the dis pack (there are two, a cartridge either side on the 3.2/2.6) or perhaps a duff plug - supposed to be 80K plugs but I wouldn't personally leave them that long.

I find it very hard to believe the headgasket is failing with none of the classic symptoms showing.

[serek]

HG job can do for 200-400 quid  or buy second hand engine from ebay or some OOF members do breaking omegas
no point to spend money for new motor

[VXL V6]

Not many 3.2's being broken for parts though   If you find an MV6 then get me the front bumper!!!!

Best to play the waiting game, can't see any evidence that there is a headgasket problem.

[Kevin Wood]

Doesn't sound to me as if they have done a conclusive diagnosis. Oil in the coolant could very well be (most likely to be) remnants from the oil cooler and sniffing the coolant for fumes isn't always conclusive.

I would just check that all ignition components are in top form, check to see if it misfires on LPG, petrol or both (in case it's a sticky injector) and see how it goes. If they are right the head gasket problem will make itself more known very soon, although head gasket issues are rare on the V6.

Kevin

[JamesV6CDX]

I strongly doubt head gasket problems. Very common misconception.

What is the "block test" they speak of??

[sparx]

Hi , does not sound like your head gasket has gone .
Sounds like an air leak somewhere .
Check your vaccum pipes for splits , look in maintence guides / page 6 / v6 engine bay vaccum pipes , too find where they all go .

[Taxi_Driver]

Is the missfire on petrol, LPG or both? LPG more telling of weakened ignition system.

Missfire could be a crack is the dis pack (there are two, a cartridge either side on the 3.2/2.6) or perhaps a duff plug - supposed to be 80K plugs but I wouldn't personally leave them that long.
I find it very hard to believe the headgasket is failing with none of the classic symptoms showing.

Running on LPG change em every 10k...to keep the missfires at bay  

Might be a coilpack tho  :-/

Is it ok on petrol ?

[skippybanger]

it misfires on both more so on lpg, but got worse today engine managment light comes on and off i done pedal test and it came with 0300 and 0302

[Big_Roger]

Hi,
If I were you I would be looking to change all plugs, and the Coil per plug unit for bank 1 cylinders.
The CPP units do seem prone to failure after about 75000 miles.

HTH

Roger

[skippybanger]

here is the funny bit mine has done 230k but had new engine at 110k so its now 120k but been serviced by vauxhall every 6 months

[Marks DTM Calib]

Hmmm....miss firing on LPG and petrol but worse on LPg......definately ignition system.

Pop the coil packs off and have a look at them for signs of cracking and rust. Also check the plug wells for oil.

Headgaskets my arse!

You certainly dont get oil in the water under gasket failures on these units!