Project HaeThere! (Coupé restoration)

[mjb]

Guess I could do that while I've got the manifold off. How much is a tester?

[mjb]

Added: 1. BUY TAX!

Yeah, just noticed it's the last day on it today I can't bloody afford this on top of all these repairs and still paying for the f*cking thing! What about beer money?!?!?

I'm going to have to go to the post orifice ain't i? *shudder*

[eoin27]

How much is the tax on a V6 coupe in england? Nearly two grand over here

[mjb]

Pre march 2001 means it's only something like £180/year

[mjb]

6. Cleaned it!
Got the bug&tar remover, bought a polisher to save my back, removed most of the tar from the nearside. Eventually. I think half the motorway network was on the side of the car

3. The overhead humidity sensor fan is buzzing. 30min job if it's just clogged with dust, an hour, some blu-tac and 50p if I have to botch a new fan in it
Pulled it out, cleaned it with an air duster, nice and quiet, put it back, BZZZZZZZZZZZZZZ. Seems like the coupe's designed to amplify its vibrations through the roof lining. It's quieter now, but I'm going to see if I can get some tiny rubber grommets or at least rubber washers to dampen it. Hmm I'd need longer screws too so maybe I could put it on with double-sided foam tape instead

12. Bulb in the trip computer needs replacement.
Done

[Doggy]

Guess I could do that while I've got the manifold off. How much is a tester?

There's this one on Fleabay 120384971994, or Gunsons £19 @ Halfrauds, but you can probably do better

[steve_earwig]

I got one!

[STALLED]

Could be a dud coilpack? Have you tested these - they often fail on the V6 and need replacement! Might as well replace them all at once....

[Welly]

I'd be wanting to sort out the miss fire asap - that WOULD do my head in

[mjb]

Could be a dud coilpack? Have you tested these - they often fail on the V6 and need replacement! Might as well replace them all at once....

There's only one coil pack on the 194bhp ES9J4 - they moved to individual pencil coils on the 210bhp ES9J4S

I've checked the coil pack:

7. I'm firing on only 5 cylinders. Erk!
Had a play with my oscilloscope and managed to pick up clear signals from all three HT leads and coils by induction.

[mjb]

Got it taxed today after an infuriatingly long wait at the post office. Hate that place, it stinks of death. They should have a separate queue for those about to pop their clogs who always seem to spend half hour nattering to the woman at the counter

Getting very worried about this missing cylinder though. Fuel consumption's horrific (250 miles to a tank!), there's a NASTY stench of petrol from the exhaust, I'm going to burn the clutch and cat if i'm not careful and the juddering is bone-breaking under 2000rpm. I really don't want the bottom engine mount to go either...

So I'm going to get some new spark plugs in at the weekend and try to use a compression tester. Think I might try disconnecting each of the injectors in order first to see if I can work out which cylinder's shot. I'll try the front bank tomorrow as I can get to them without major surgery and if anything I might be able to stop it pissing precious fuel away... How badly do you think the ECU will react to me killing injectors?

Beyond that I'm completely at a loss - I'm right out of my league messing with the engine

[jasper5]

Has the V6 got seperate plug leads from the coil pack to the plugs? If so, can you swap the leads about to see if the fault moves from cylinder to cylinder, eg, if you can remove the leads one at a time and see if the misfire goes worse or nothing happens when you remove any plug lead, if so, move the leads to see if the cylinder not working moves with any particular lead.

I mean, if number 3 cylinder, for example, does not change the note of the engine when it is removed, then that is the faulty cylinder, you then move number 3 lead to number 2 and vise versa, if the faulty cylinder is now number 2, the plug lead is at fault.Basically, go from cylinder to cylinder removing the leads one at a time and see if any of them do not change the engine note.

You can do what I do on the 206, they have a common fault with injectors, move injectors about, eg, 1to 6, 4to 5 etc.
On the 206 this causes the injector to reset itself and work properly.I've done this lots of times.It isn't a bodge, it's a sensible, common sense repair that works.

If you think about it, it's unlikely to be injectors not working if you can smell petrol in the exhaust.

[Doggy]

If you think about it, it's unlikely to be injectors not working if you can smell petrol in the exhaust.

Just a guess this, but isn't it possible for an injector to fail 'open' i.e. let far too much fuel through flooding that cylinder?
Don't know how you could cut the fuel supply off to it though....

[mjb]

By the way, this is what your pollen filter looks like if you get your car regularly "serviced" at Marshall's Newbury - a Peugeot main dealer. Compare it to my new one...



The receipts are quite interesting too. For instance they charged the poor sod who previously owned it £125+VAT to skim all 4 brake discs to cure the brakes squealing. Even *I* know that's no fix, especially as the pads weren't replaced

Brake fluid change at 120k? My arse was it!

[mjb]

Has the V6 got seperate plug leads from the coil pack to the plugs? If so, can you swap the leads about to see if the fault moves from cylinder to cylinder, eg, if you can remove the leads one at a time and see if the misfire goes worse or nothing happens when you remove any plug lead, if so, move the leads to see if the cylinder not working moves with any particular lead.

There's a coil pack mounted on the front bank with 3 coils. It feeds the front 3 spark plugs directly and the rear plugs via a set of 3 HT leads which disappear into a "fake" coil pack mounted on the rear bank (under the inlet manifold). The HTs are detachable at the front end, so I guess I can try them, but the lengths are matched perfectly so I don't think I can swap any over.

I mean, if number 3 cylinder, for example, does not change the note of the engine when it is removed, then that is the faulty cylinder, you then move number 3 lead to number 2 and vise versa, if the faulty cylinder is now number 2, the plug lead is at fault.Basically, go from cylinder to cylinder removing the leads one at a time and see if any of them do not change the engine note.

Ahh I just re-read it and I get it. Unfortunately the leads are only detachable at the front so I can see if detaching them has an effect but swapping them is a no-go. I can take the "fake" coil pack out and give it a workout with the multimeter, but if it's knackered I need a new £70 one.

You can do what I do on the 206, they have a common fault with injectors, move injectors about, eg, 1to 6, 4to 5 etc.
On the 206 this causes the injector to reset itself and work properly.I've done this lots of times.It isn't a bodge, it's a sensible, common sense repair that works.

Injectors can be reset? I can give that a go!

If you think about it, it's unlikely to be injectors not working if you can smell petrol in the exhaust.

I know, but if I disconnect an injector and it makes no difference, then I've identified the cylinder with a fault, and I can stop it wasting petrol if I dunno how to fix it


Thanks for your input Jasper, you've given me a bit more confidence