Changing Glow Plugs

Hintza

What is the accepted practice change one or change them all?

Rossy.

I see nothing wrong in replacing them in singles

But for peace of mind i'd change all 4 at the same time

Sod's law would mean you replace one today, have to do 2 next week etc

Do them all together as you would spark plugs

cyclonebri1

Check them out with a multi meter and change as needed, or be anal and change the lot if one has gone.

These things are not critical, one or two gone make precious little difference in starting performance.

Remember once the car has started these are largely superfluous, and when up to temp are trully out of the equation. ;)

Rolandtheroadie

Depends how long I'm expecting to have the car for.
Changed all in the wifes car (fixed nothing, so have 4 spares now), just changed the 2 faulty ones on my last Corsa.
Would also depend how easy they were to remove and replace.

mikey72

I changed all our's in the 106 when it would only start with easystart last winter.
None of them glowed when I put them across a battery, so that pretty much decided it.
I was tight, and used halfords own, as they were about £16 a set with the tradecard.
Otherwise I'd buy Beru.

Hintza

Thanks all.

All different views but all valid. Will try and get a multimeter on them. Hope it is number 1 as my understanding is that on the Cherokee they get progressively harder the further back you go.

mikey72

Hintza wrote: »

Thanks all.

All different views but all valid. Will try and get a multimeter on them. Hope it is number 1 as my understanding is that on the Cherokee they get progressively harder the further back you go.

Aren't you supposed to need a puller for the cherokee?
(The 106 is just a long socket, and they don't normally stick either)

Rolandtheroadie

Hintza wrote: »

Thanks all.

All different views but all valid. Will try and get a multimeter on them. Hope it is number 1 as my understanding is that on the Cherokee they get progressively harder the further back you go.

Just like number 1 on my astras a pain and has probably never been changed lol.

mikey72

scotsman4th wrote: »

Just like number 1 on my astras a pain and has probably never been changed lol.

The astra's are renowned for breaking as well though.

Rolandtheroadie

I've had the other 3 out for testing, hopefully never have to go near it.

Rossy.

I must be lucky as my glow plugs are so easy to remove