406 1.9 TDI

Gents With this cold weather my diesel is producing white smoke and sounding like a tractor when it starts as it is not firing on all cylinders. My diagnosis is faulty glow plug as it OK when warm.

1 Is there a way of identifying the faulty plug without removing all 4 from the car. 2 In order to change the glow plugs what actually needs to be removed to get at them. The two passenger ones won't be too bad as access is restricted. The other two look as though a lot of dismantling is required including removing the diesel pump. 3 Are specialist spanners / tools required

Mike

Reply to
MIKE ROCHE
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They all come out without any special tools or techniques. Just a bit of patience. If you're going to do one, then do them all. Shouldn't cost more than £30 for the lot. I got Beru from ECP last time.

Reply to
yeha

First of all Mike, I hope your diagnosois is correct, although in my experience plugs out means black smoke on startup. To answer your questions though. The only effective way to test them is to put em on a battery, I've always found resistance checks inconclusive. I tend to leave changing em to a garage, two are easy, one's difficult and the fourth is a ba*tard to get at. (I used to do the plugs on my old diesel 305 without breaking into a sweat) If one or two's gone the others won't be far behind, and sods law dictates that if it is only one, it'll be the one behind the pump. imo.

Rick.

Reply to
Rick Maninov

On this subject. I have just had all 4 glow plugs replaced on my Pug

405 1.9 TD (1995). Reason being that the car was struggling to start and chucking out thick grey / black smoke. Since having the plugs changed the car starts better but still throws out lots of smoke and does not always start first time i.e. I wait until the glow plug light has gone out attempt to start with no luck turn the key again to relight the glow plugs wait and try again. Second time it starts Ok.

Why is this? Is it just because it's getting colder in the morning at this time of year? or is it mainly because my Pug is getting nearer

110K miles on the clock?
Reply to
Mark

Mines still running perfect, no problems, starts first time, with 158k on the clock

Reply to
Cheater2k

I don't know why it's doing that, unless one of the new plugs was duff - not many people (including garages) check new plugs. Another possibility is that you have a poor connection somewhere in the glow-plug circuit (glow-plug relay or wiring) At 110k miles the engine is barely run in, so I shouldn't worry about that.

Andy

Reply to
Andrew Kirby

Another one is they fitted the wrong plugs, or couldn't be assed to change em all, some of these monkeys don't give a stuff. Generaly it shouldn't need two goes at the plugs even in the dead of winter. All the Pug diesels I've had, including a 405 with 140K on it, started first turn when the plugs were ok.

Rick.

Reply to
Rick Maninov

Reply to
MIKE ROCHE

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