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tulipandthistle

Active Member

• Feb 6, 2017

• #1

As it is getting colder my 03 Td5 has only sometimes for a moment rough idle on start up from cold.

It won't happen again for that day, it seems to only happen when it is cold outside.

Car is running fine

I go and read the codes now (should have done that before I posted, I know)

 

brian47

Well-Known Member

• Feb 6, 2017

• #2

A faulty glowplug?

 

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tulipandthistle

Active Member

• Feb 6, 2017

• #3

Would that show up on the nanocom?

 

brian47

Well-Known Member

• Feb 6, 2017

• #4

tulipandthistle said:

Would that show up on the nanocom?

Click to expand...

Nope, you're going to have to check the resistance of each one in turn, or you can pull each one and check that they warm up. Be very careful doing that, they do get very, very hot!

 

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tulipandthistle

Active Member

• Feb 6, 2017

• #5

I will try that! Thanks a million!

 

Discodevon

Well-Known Member

• Feb 6, 2017

• #6

Hi mate my fathers does this but only when cold... Worse in the winter months... Done it for well over 100.000 miles

Glow plugs didn't resolve this

Still runs nice though

 

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tulipandthistle

Active Member

• Feb 6, 2017

• #7

Discodevon said:

Hi mate my fathers does this but only when cold... Worse in the winter months... Done it for well over 100.000 miles

Glow plugs didn't resolve this

Still runs nice though

Click to expand...

Yep mine runs fine too

 

johnlad

Well-Known Member

• Feb 6, 2017

• #8

possibly mass air flow meter, it takes the ecu a few seconds to resort to a default value if the sensor is faulty

 

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tulipandthistle

Active Member

• Feb 6, 2017

• #9

I will check that by disconnecting the MAF

 

MJI

Well-Known Member

• Feb 6, 2017

• #10

Think about the fact it has 4 glow plugs and 5 cylinders.

Does it feel like 4 OK and 1 a bit rough?

 

sierrafery

Well-Known Member

• Feb 7, 2017

• #11

tulipandthistle said:

I will check that by disconnecting the MAF

Click to expand...

this would not be relevant for the starting issue cos disconneting it gets that delay mentioned by @johnlad , disconnecting it is usefull only for running issues... a good glow plug should have 0.9 ohm resistance against earth though it's important to make sure that they get feed too if all good

 

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tulipandthistle

Active Member

• Feb 7, 2017

• #12

MJI said:

Think about the fact it has 4 glow plugs and 5 cylinders.

Does it feel like 4 OK and 1 a bit rough?

Click to expand...

Not sure, it runs a bit rough for a little and then goes like normal. Just for a short while.

 

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tulipandthistle

Active Member

• Feb 7, 2017

• #13

sierrafery said:

this would not be relevant for the starting issue cos disconneting it gets that delay mentioned by @johnlad , disconnecting it is usefull only for running issues... a good glow plug should have 0.9 ohm resistance against earth though it's important to make sure that they get feed too if all good

Click to expand...

OK will be measuring glow plugs in the weekend!

 

Discodevon

Well-Known Member

• Feb 7, 2017

• #14

Like ferry said and might benefit from a new maf sensor buy genuine, though expensive Its the best