[Engine] Glow Plug Pre Heat

[Steve hicks]

Hi all,:wave:
I have tried to look if this has been covered, and I may have the answer- but just need to clarify.cratch:

My Lingo will NOT pre heat the plugs- no power to them, BUT once started it will Post heat the plugs for approx 45 seconds.

Would I be right in thinking this would lead me to a 'duff' relay in the control unit on the nearside inner wing?

Thanks in advance

Steve

[Ol'Jeffers]

Which engine do you have? What year? The turbo diesels generally don't activate heaters until the ambient temperature is around
freezing.

[Steve hicks]

It's a 52 plate, non turbo. Its the 1.9

Also pulled plugs out- these all check fine, and offside 2 plugs were saturated with oil....... not black carbonised oil, but clean fresh oil??????

Any ideas?

[micheldeman]

Hi all,:wave:
I have tried to look if this has been covered, and I may have the answer- but just need to clarify.cratch:

My Lingo will NOT pre heat the plugs- no power to them, BUT once started it will Post heat the plugs for approx 45 seconds.

Would I be right in thinking this would lead me to a 'duff' relay in the control unit on the nearside inner wing?

Thanks in advance

Steve

I am also poking arround to try to get rid of my: "pre post heating relay circuit coherence" error. Although I have a 2.0 HDI engine, I measured the same, no heating until the engine has started, but for a few minutes. So, there might be no pre heating, but still post heating once the engine runs, but no one on this forum who can confirm this unfortunately.

[obdtech]

The 1.9 non HDI needs pre heat to start.
My old un wont start from cold without them.
You need to check out the circuits/temperature input etc

[Steve hicks]

The 1.9 non HDI needs pre heat to start.
My old un wont start from cold without them.
You need to check out the circuits/temperature input etc

My pre heat light never been seen on dash??? Blub gone maybe?

where is the temp sender located?