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Any mechanics in 're VW Caddy

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By *ove2pleaseseuk OP   Man
over a year ago

Hastings

Glow plug came on went in to limp and feels like it was running on 3 cylinders.

Am gessing just a glow plug

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By (user no longer on site)
over a year ago

Turn it off then turn it back on again

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By (user no longer on site)
over a year ago


"Turn it off then turn it back on again "

Can't beat the engineering reset

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By (user no longer on site)
over a year ago

You need to put it on a diagnostic test as can be the injector itself. If as you say feels like on 3 cylinders that’s normally the issue. The glow plug itself is only needed from cold to heat the initial diesel injection

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By (user no longer on site)
over a year ago


"Turn it off then turn it back on again

Can't beat the engineering reset "

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By *ed-monkeyCouple
over a year ago

Hailsham

The glow light can mean it's an engine management issue hence the limp home mode.

Glow plugs wouldn't normally be needed once the engine is warm and running.

Maybe and EGR sensor? (Exhaust gases)

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By *ove2pleaseseuk OP   Man
over a year ago

Hastings


"Turn it off then turn it back on again "

Realy done that hopping on the side of the road.

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By *layfullsamMan
over a year ago

Solihull

Not a mechanic but a mate had similar issue.

Get someone to run a diagnostic code reader on it which should tell you what has caused the issue, not worth the risk of assuming it's just the glow plug

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By (user no longer on site)
over a year ago

I’ve just Googled VW in limp mode . Got an Australian fella taking what sounded like rocket science, to conclude not got a clue . Sorry

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By (user no longer on site)
over a year ago

As already said unlikely glow plug. Many journeys over few miles?

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By (user no longer on site)
over a year ago

Glow plugs are used for more than just cold start. Just because a glow plug heating light isn't on doesn't mean the glow plug is doing nothing.

Used especially more with later stricter emission engines.

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By *ensualtouch15Man
over a year ago

ashby de la zouch


"You need to put it on a diagnostic test as can be the injector itself. If as you say feels like on 3 cylinders that’s normally the issue. The glow plug itself is only needed from cold to heat the initial diesel injection "

Not strictly true

It used to be only a pre heater however they remain on after start to improve emissions

That said a diagnostic test is the correct option beyond that is speculation

Throwing pure speculation out there

A glow plug should not result in limp mode

The glow plug lamp has been used by many manufactures to simply indicate a fault code is set along with the mil

Last time I saw it it was egr valve however dpf issues will also lead to limp

As I said pure if , speculation and I detest speculation

The question I'd ask

Did the poor running happen before limp or does it feel like 3 after the light illuminated and reduced power mode activated

Also does a reboot reset (ignition off)

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By *rAitchMan
over a year ago

Diagonally Parked in a Parallel Universe

Definitely won't be glow plugs, as they only come on for a few seconds when starting a cold engine.

It needs a diagnostic test to find the error code. It could be an injector failure, blocked air filter, blocked fuel filter, EGR Valve, turbo fault, or anything in-between.

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By *ove2pleaseseuk OP   Man
over a year ago

Hastings


"I’ve just Googled VW in limp mode . Got an Australian fella taking what sounded like rocket science, to conclude not got a clue . Sorry "

Thanks shame you don't know you would be a good looking mechanic

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By (user no longer on site)
over a year ago


"I’ve just Googled VW in limp mode . Got an Australian fella taking what sounded like rocket science, to conclude not got a clue . Sorry

Thanks shame you don't know you would be a good looking mechanic "

I do my levels & safety checks , I can even change a flat tyre , like to be independent

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By *ove2pleaseseuk OP   Man
over a year ago

Hastings


"Glow plugs are used for more than just cold start. Just because a glow plug heating light isn't on doesn't mean the glow plug is doing nothing.

Used especially more with later stricter emission engines."

I guessed that and had only done 100 yards or so so might not have been hot

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By *layfullsamMan
over a year ago

Solihull


"Glow plugs are used for more than just cold start. Just because a glow plug heating light isn't on doesn't mean the glow plug is doing nothing.

Used especially more with later stricter emission engines.

I guessed that and had only done 100 yards or so so might not have been hot "

My mate got away with it by going through the glow plug warming up cycle 4 times when it was really cold

*disclaimer as I've no idea if that caused further damage later on

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By *ove2pleaseseuk OP   Man
over a year ago

Hastings


"You need to put it on a diagnostic test as can be the injector itself. If as you say feels like on 3 cylinders that’s normally the issue. The glow plug itself is only needed from cold to heat the initial diesel injection

Not strictly true

It used to be only a pre heater however they remain on after start to improve emissions

That said a diagnostic test is the correct option beyond that is speculation

Throwing pure speculation out there

A glow plug should not result in limp mode

The glow plug lamp has been used by many manufactures to simply indicate a fault code is set along with the mil

Last time I saw it it was egr valve however dpf issues will also lead to limp

As I said pure if , speculation and I detest speculation

The question I'd ask

Did the poor running happen before limp or does it feel like 3 after the light illuminated and reduced power mode activated

Also does a reboot reset (ignition off)"

Seems ok pulling out of store then would not pick up.

Light on and slow and as if it was missing. Light on not flashing

Pulled in stoped key out. Count to 10 and the same when it startet.

Will call the garage in the morning or role it down the road and call the AA out

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By *xtrafun4youMan
over a year ago

Dunstable


"Definitely won't be glow plugs, as they only come on for a few seconds when starting a cold engine.

It needs a diagnostic test to find the error code. It could be an injector failure, blocked air filter, blocked fuel filter, EGR Valve, turbo fault, or anything in-between."
definitely not a correct answer. Glow plugs can come on even when driving. Especially on modern diesel.

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By *ove2pleaseseuk OP   Man
over a year ago

Hastings


"I’ve just Googled VW in limp mode . Got an Australian fella taking what sounded like rocket science, to conclude not got a clue . Sorry "

Don't think you ( her ) Would see munch in the way of limp

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By (user no longer on site)
over a year ago


"I’ve just Googled VW in limp mode . Got an Australian fella taking what sounded like rocket science, to conclude not got a clue . Sorry

Don't think you ( her ) Would see munch in the way of limp "

I can get anything from limp mode to full revs

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By *ilfCrumpet9Man
over a year ago

Wirral

If its running on three cylinders and in limp mode sounds like an injector fault. Probably start by wiggling all the connections to the injectors or disconnect and reconnect and see if any change. Don't do this with the ignition on. If no change then could be wiring fault or injector itself. But like most said on here code reader required. If you were close to me I could have checked it for you

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By *incscarcoupleCouple
over a year ago

GRIMSBY

Glowplug light is used for a number of reasons, could even be Injector, egr or depending on age i have had dpf related issues cause misfire and poor running faults

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By *ohnywrongunMan
over a year ago

Epping

Could be the coil ,

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By *stroboy78Man
over a year ago

Abergavenny

Join a VW forum and ask someone who has VAGCOM (VW specific code scanning to software) to scan it for you, I'd offer but you're miles away. Could be a number of things depending on the year. Failing the VAGCOM get to argos or Halfrauds, ebay, Amazon and get a code reader, cheap enough and worth their weight in gold.

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