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SD4 Engine flat spot
wungun
 

Posts: 49
Joined: Apr 2018
Location: Kitchener Ontario
Post: #51
RE: SD4 Engine flat spot

Have you checked the spark plugs? What's your mileage?
I replaced mine last week (and air filter) with 118,000 KM and it fixed the stumble/hesitation leaving a stop.
18-04-2019 12:25pm
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Steve D
 

Posts: 400
Joined: Jul 2015
Location: Essexshire
Post: #52
RE: SD4 Engine flat spot

(15-04-2019 08:05am)carlos50 Wrote:  Tried the reset, it didnt cure the problem. I also changed the MAF sensor last week, its helped, as has the new air filter, 99 octane fuel, a bottle of Techron fuel treatment etc. but still have a definite problem with anything but the lightest throttle use.

If you’re using 99 octane fuel in a SD4 engine or changing spark plugs, you’ve got a major problem! Laughing

Santorini SD4A Dynamic Lux with shadow chromes, ebony leather and privacy glass. Very Happy
(This post was last modified: 19-04-2019 08:40am by Steve D.)
19-04-2019 08:34am
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XFullFatTim
Bat wielding forum enforcer

Posts: 9,295
Joined: Oct 2010
Location: Somewhere between here and there.
Post: #53
RE: SD4 Engine flat spot

OP does say in his post that he has an Si4 Steve.........

A Pangea Green New Defender 110 First Edition is now sitting on my drive alongside British Racing Green Electric Mini Cooper SE Level 3. After 21 years in my hands my TDI300 90 was handed on to the next custodian on 15 July 2022.
20-04-2019 10:01am
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Steve D
 

Posts: 400
Joined: Jul 2015
Location: Essexshire
Post: #54
RE: SD4 Engine flat spot

He doesn’t Tim. In fact, this was his last post.

(29-07-2013 12:20am)Stufrost Wrote:  OK -Useful feedback. I'm going to buy the 'chip my diesel' chip at A$400. Don't feel I should have to given its a problem that shouldn't be there and the car's just a year old but I'll do it anyway and let you know the results on these pages.

Edit: Ah, just read the whole 'SD4 Engine flat spot' thread. Just seen Carlos 50’s post. He wasn’t the OP but jumped in on the thread later. I didn’t see his first post in this thread stating what engine he had.

Santorini SD4A Dynamic Lux with shadow chromes, ebony leather and privacy glass. Very Happy
(This post was last modified: 20-04-2019 09:32pm by Steve D.)
20-04-2019 09:26pm
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XFullFatTim
Bat wielding forum enforcer

Posts: 9,295
Joined: Oct 2010
Location: Somewhere between here and there.
Post: #55
RE: SD4 Engine flat spot

Sorry I thought you were referring to Carlos50

A Pangea Green New Defender 110 First Edition is now sitting on my drive alongside British Racing Green Electric Mini Cooper SE Level 3. After 21 years in my hands my TDI300 90 was handed on to the next custodian on 15 July 2022.
21-04-2019 08:23am
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