↓ Advertise on Defender2 ↓

Home > Technical > Td5 misfire
Post Reply  Down to end
Page 1 of 1
Print this entire topic · 
Alextd5



Member Since: 11 Feb 2017
Location: Gloucestershire
Posts: 322
United Kingdom 2006 Defender 90 Td5 XS CSW Bonatti Grey
Td5 misfire
Hello

Please can I have some help diagnosing what I believe to be a Misfire when slowing down/coasting. So when engine is a operating temperature when I come to a junction or simply slow down the engine shakes and to me feels like it could be a misfire? I have had it plugged into auto logic which checked the injectors, maf etc. With no codes.

Parts I have cleaned checked or changed.

New genuine injector harness check for oil. Small amount in red plug. Now cleaned.
MAP sensor cleaned
MAF reading were fine ( new 6 months ago )
Turbo wastegate not seized
EGR BLANKED
FORTE DIESEL treatment added
Plus It's just had a full Service.

Should i get the injector seals replaced as my old td5 kept cutting out etc due to these ? And the sensor in the air box believed to ambient air temp cause any problems related ?

Any help would be much appreciated

Alex
Post #641811 4th Aug 2017 5:56am
View user's profile Send private message View poster's gallery Reply with quote
AndyT66



Member Since: 19 Sep 2016
Location: Bedford
Posts: 149
England 2004 Defender 90 2.5 TD XS CSW Zambezi Silver
Hi Alex, I'm no expert but I have read that a stiff Westgate actuator valve under the turbo heat shield can produce similar symptoms, maybe worth checking?
Post #641818 4th Aug 2017 7:24am
View user's profile Send private message View poster's gallery Reply with quote
Alextd5



Member Since: 11 Feb 2017
Location: Gloucestershire
Posts: 322
United Kingdom 2006 Defender 90 Td5 XS CSW Bonatti Grey
Hi Andy,

Thankyou for your advice. I have checked the wasegate actuator all appears fine. Or it moves at least.

Many Thanks

Alex
Post #641826 4th Aug 2017 8:16am
View user's profile Send private message View poster's gallery Reply with quote
MaxRPM



Member Since: 15 Jan 2013
Location: South Staffs
Posts: 1114
England 
I replaced my wastegate actuator with a new one from here:

http://www.ebay.co.uk/itm/Land-Rover-Defen...SwmgJY743L

Cured my under load misfire I've had for months.
Post #641965 5th Aug 2017 5:27am
View user's profile Send private message View poster's gallery Reply with quote
Fatboy Slim



Member Since: 04 Feb 2008
Location: Bridgend
Posts: 1006
Wales 
Hi Alex. Perfectly normal for a 15p. Part of the fuel saving strategy in the software
Post #641970 5th Aug 2017 6:16am
View user's profile Send private message View poster's gallery Reply with quote
Alextd5



Member Since: 11 Feb 2017
Location: Gloucestershire
Posts: 322
United Kingdom 2006 Defender 90 Td5 XS CSW Bonatti Grey
Thanku MAXRPM, I have looked at those on eBay and nearly purchased one until I used a vacuum/pressure tester and it worked freely. But thank you.

Fatboyslim , you may be right but what concerns me it doesn't always do it and I'm old one didn't do
It at all. I have driven my friends and his doesn't do it. Mine is very noticeable and gives you that feeling something's
Wrong.

I have just received my new injector puller through the post along with new genuine seals and washers so Hopefully that will Cure it. Even though it's only done 60,000. I haven't yet heard of any needing them done that Soon?

Many thanks

Alex.
Post #641986 5th Aug 2017 8:44am
View user's profile Send private message View poster's gallery Reply with quote
bob neville



Member Since: 30 Apr 2009
Location: Marbella
Posts: 3248
Spain 2001 Defender 90 Td5 SW Epsom Green
I had my injector seals done at 59K - the old ones were not a pretty sight !


Click image to enlarge

Bob 2015 Jaguar XE240 R Sport - goes like ....... !!
2013 Defender 90 CSW - sold
2009 Defender 110 Double Cab - sold
2001 TD5 90 CSW - offroad project - sold to a forum member
2011 Porsche Boxster - for the sunny days !
Post #642006 5th Aug 2017 10:46am
View user's profile Send private message View poster's gallery Reply with quote
mk1collector



Member Since: 17 Sep 2009
Location: West Yorkshire
Posts: 6772
England 2004 Defender 110 Td5 CSW Bonatti Grey
Have a read of this about the crankshaft pulley
http://www.discovery2.co.uk/CrankPulley.html Ray
My build thread
http://www.defender2.net/forum/topic17615.html
Post #642012 5th Aug 2017 11:31am
View user's profile Send private message View poster's gallery Reply with quote
Fatboy Slim



Member Since: 04 Feb 2008
Location: Bridgend
Posts: 1006
Wales 
Alex, what year is your mates ?
Post #642037 5th Aug 2017 4:03pm
View user's profile Send private message View poster's gallery Reply with quote
Alextd5



Member Since: 11 Feb 2017
Location: Gloucestershire
Posts: 322
United Kingdom 2006 Defender 90 Td5 XS CSW Bonatti Grey
Hi, 2004 with 100k on. mine is 2006 and 60k
Post #642045 5th Aug 2017 4:51pm
View user's profile Send private message View poster's gallery Post Reply
Post Reply  Back to top
Page 1 of 1
All times are GMT

Jump to  
<  Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2006-2025 Futuranet Ltd & Martin Lewis
DEFENDER2.NET RSS Feed - All Forums