Cold start issue
Author
Discussion

Penfold.73

Original Poster:

12 posts

69 months

Saturday 16th January 2021
quotequote all
Hey all.

I've got a diesel Corsa D (2014) that's just had the EGR valve replaced. Ever since, it seems to be having trouble starting from cold, but if its had a good run for 10-15 minutes, it turns over and starts absolutely fine.

I'm thinking that it could be a coincidence that this has started just after an EGR replacement, but maybe it isn't.

I haven't had exceptionally long runs in the car as of late, and it has just been sitting outside with the odd occasional short journey.

I'm thinking it could be the battery? What are your thoughts?

catman

2,504 posts

205 months

Saturday 16th January 2021
quotequote all
Is the engine turning over quickly when you start it, or is it struggling? The obvious difference on a Diesel engine when cold/hot starting is the glow plugs. It's possible that there's a problem there.

Penfold.73

Original Poster:

12 posts

69 months

Saturday 16th January 2021
quotequote all
I'd say it's probably a little slower than usuaI.

I should have added that the dials on the instrument cluster behave weird too for a second, then behave normally. It's like struggles then pulls itself back and then works fine...

Penfold.73

Original Poster:

12 posts

69 months

Saturday 16th January 2021
quotequote all
I was thinking the glow plus or the battery. Is it true that less crank amps would be required if the engine was warm, as it doesn't have to heat up the plugs? That was my line of thinking anyways.

catman

2,504 posts

205 months

Saturday 16th January 2021
quotequote all
If the dash lights are erratic, that often points to a dodgy battery. May be worth getting it tested first.

Penfold.73

Original Poster:

12 posts

69 months

Saturday 16th January 2021
quotequote all
I'm planning to test the voltage with a multimeter tomorrow, will let you know how that goes. Thanks so far!

njw1

2,797 posts

141 months

Saturday 16th January 2021
quotequote all
Check your battery terminals are tight before you do anything more drastic. wink

Gary C

15,303 posts

209 months

Saturday 16th January 2021
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I had a Clio like that

When starting sometimes the dials would go crackers and the clock would lose its setting. Because it cranked ok and didn't happen every time I at first assumed it was more serious but changed the battery and away all the problems went.

Then got some axle tramp and snapped the gearbox mount off the box, but at least it started.

oakdale

2,001 posts

232 months

Sunday 17th January 2021
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It's a long time since I've worked on one of these but if I think the fuel filter has to be disturbed to do the egr valve?

If that's the case, I'd be looking for a problem with the filer seal causing air to get into the fuel system when the car is left standing.

Penfold.73

Original Poster:

12 posts

69 months

Monday 18th January 2021
quotequote all
oakdale said:
It's a long time since I've worked on one of these but if I think the fuel filter has to be disturbed to do the egr valve?

If that's the case, I'd be looking for a problem with the filer seal causing air to get into the fuel system when the car is left standing.
The fuel filter is the opposite side of where the EGR is located. Fuel filter is located on the left side of the engine and the EGR value is underneath the throttle body on the right hand side of the engine (looking directly into the engine bay). This was replaced some time ago by myself and has been fine ever since, so I don't think it could be the fuel filter... but who knows!



Penfold.73

Original Poster:

12 posts

69 months

Monday 18th January 2021
quotequote all
It started absolutely fine yesterday, but it wasn't exceptionally cold so I'm putting it down to that. I'm definitely thinking battery or glow plugs at this stage?

I did also shove some wynns extreme diesel cleaner in the tank...