www.tdiclub.com

Economy - Longevity - Performance
The #1 Source of TDI Information on the Web!
Forums Articles Links Meets
Orders TDI Club Cards TDIFest 2016 Gone, but not forgotten VAG-Com List Unit Conversions TDIClub Chat Thank You

Order your TDIClub merchandise and help support TDIClub


Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW MKIV-A4 TDIs (VE and PD)

VW MKIV-A4 TDIs (VE and PD) This is a general discussion about A4/MkIV Jetta (99.5-~2005), Golf(99.5-2006), and New Beetle(98-2006). Both VE and PD engines are covered here.

Reply
 
Thread Tools
Old November 11th, 2019, 14:19   #1
Davegsm82
Veteran Member
 
Join Date: Oct 2010
Location: Newcastle, UK
Fuel Economy: 57MPG (Golf) + 42MPG (T25)
Default PD150 ARL Engine, smoke/shuddering on start.

As per the title, my ARL engine golf seems to be having a bit of a hard time Idling smoothly on start up.

It smokes for a good while on startup too, smells 'dieselly', both the smoke and the shuddering pretty much stops once the engine gets up to about 35-40 degrees C, as read from both the engine CTS and the Instrument cluster on VAGCOM. I have had similar issues caused by the 4 pin coolant temp sensor perviously, but this one is reading fine so I think something else is amiss. The shuddering also goes away if you raise the revs slightly, but the smoke continues until it warms.

I thought perhaps it was the valve guide seals worn, as the engine uses a small amount of oil between changes.

I fitted a replacement Cyl head to this engine about 30,000 miles ago, as it had HGF and eroded the old head. No history on the new head unfortunately.

Any suggestions for anything to try/diagnose?
Davegsm82 is offline   Reply With Quote
Old November 11th, 2019, 15:04   #2
BobnOH
not-a-mechanic
 
Join Date: May 2004
Location: central Ohio
Fuel Economy: 50/45/35
Default

Be sure the glow plugs are glowing.
BobnOH is online now   Reply With Quote
Old November 11th, 2019, 15:49   #3
Davegsm82
Veteran Member
 
Join Date: Oct 2010
Location: Newcastle, UK
Fuel Economy: 57MPG (Golf) + 42MPG (T25)
Default

Quote:
Originally Posted by BobnOH View Post
Be sure the glow plugs are glowing.
I'll be sure to check that tomorrow, pretty confident they are fine as I replaced them less than a year ago along with half the harness as it shattered when I attempted to remove it.
Davegsm82 is offline   Reply With Quote
Old November 12th, 2019, 02:40   #4
Zak3
Veteran Member
 
Join Date: Mar 2009
Location: Morocco
Default

It can be a faulty injector or faulty injectors loom.
Zak3 is offline   Reply With Quote
Old November 12th, 2019, 04:26   #5
Davegsm82
Veteran Member
 
Join Date: Oct 2010
Location: Newcastle, UK
Fuel Economy: 57MPG (Golf) + 42MPG (T25)
Default

Quote:
Originally Posted by Zak3 View Post
It can be a faulty injector or faulty injectors loom.
I'm not getting any error codes related to the injector loom, what are the symptoms you would expect from a failing loom?

I have a spare set of injectors for this car, but they will require new seals etc before fitting.
Davegsm82 is offline   Reply With Quote
Old November 12th, 2019, 11:14   #6
Rrusse11
Veteran Member
 
Join Date: Jan 2014
Location: PA Deutsch Country
Default

"they will require new seals etc before fitting."

The copper crush washers can be re-annealed, rendering them soft again.

Heat to red, quench immediately in cold water. A propane torch and

a bit of coathanger wire will do it.
__________________
RC Stage 4: 11mm pump, 17/22, .230 nozzles, 3barMAP,EGR Delete, PD150Intake,SMIC,2.5" Exhaust: Koni Sp Reds, Wagon Springs, ~1"/2"lift:VR6 fr swaybar, Top strut & rear tie bar: 215/55ZR16 GMax AS05's, 10mm/20mm spacers, 35# @: skid plate: 02J, SBC2 End, .717 5th, Peloquin LSD, Fluidampr: TT Short Shifter: : VR6 fr, TT rr Brks
Rrusse11 is online now   Reply With Quote
Old November 12th, 2019, 12:21   #7
Davegsm82
Veteran Member
 
Join Date: Oct 2010
Location: Newcastle, UK
Fuel Economy: 57MPG (Golf) + 42MPG (T25)
Default

Quote:
Originally Posted by Rrusse11 View Post
"they will require new seals etc before fitting."

The copper crush washers can be re-annealed, rendering them soft again.

Heat to red, quench immediately in cold water. A propane torch and

a bit of coathanger wire will do it.
Yea, I'm quite happy annealing the copper washers but the PD injectors have a series of O-rings on the body which seal against ports in the bore. They frequently burst through unfortunately so it's not recommended to reuse them.
Davegsm82 is offline   Reply With Quote
Old November 19th, 2019, 10:30   #8
Davegsm82
Veteran Member
 
Join Date: Oct 2010
Location: Newcastle, UK
Fuel Economy: 57MPG (Golf) + 42MPG (T25)
Default

Checked the glow plugs today, all absolutely fine, however I smashed my GP connector loom getting it off them, this will be the second one I've put on this car due to it going brittle with age.
Davegsm82 is offline   Reply With Quote
Old November 19th, 2019, 20:20   #9
Rrusse11
Veteran Member
 
Join Date: Jan 2014
Location: PA Deutsch Country
Default

Quote:
Originally Posted by Davegsm82 View Post
Yea, I'm quite happy annealing the copper washers but the PD injectors have a series of O-rings on the body which seal against ports in the bore. They frequently burst through unfortunately so it's not recommended to reuse them.

Oops, sorry. No experience whatsoever with PDs. I stand corrected.
Cheers!
__________________
RC Stage 4: 11mm pump, 17/22, .230 nozzles, 3barMAP,EGR Delete, PD150Intake,SMIC,2.5" Exhaust: Koni Sp Reds, Wagon Springs, ~1"/2"lift:VR6 fr swaybar, Top strut & rear tie bar: 215/55ZR16 GMax AS05's, 10mm/20mm spacers, 35# @: skid plate: 02J, SBC2 End, .717 5th, Peloquin LSD, Fluidampr: TT Short Shifter: : VR6 fr, TT rr Brks
Rrusse11 is online now   Reply With Quote
Old November 20th, 2019, 04:21   #10
Davegsm82
Veteran Member
 
Join Date: Oct 2010
Location: Newcastle, UK
Fuel Economy: 57MPG (Golf) + 42MPG (T25)
Default

So today a couple of times I noted a slight hesitation on acceleration in 3rd gear when pulling hard. This has happened in the past but simply went away of it's own accord.

Again is this a sign of injector loom failure or something else obvious?

Quote:
Originally Posted by Rrusse11 View Post
Oops, sorry. No experience whatsoever with PDs. I stand corrected.
Cheers!
No worries
Davegsm82 is offline   Reply With Quote
Old November 25th, 2019, 16:16   #11
Davegsm82
Veteran Member
 
Join Date: Oct 2010
Location: Newcastle, UK
Fuel Economy: 57MPG (Golf) + 42MPG (T25)
Default

Tracked the poor idle/smoke down to the GP relay in the relay panel, relay number 167. Relay coil was open circuit, reading 500 ohms (snubber resistor only), instead of ~50ohm for a good relay, made the ECU think the relay was still good.

Car has also been slow to catch on startup, noticed battery voltage was down at 11.9v before I even turned the key, battery even though new was bad.

Also tracked an oil leak to somewhere on the rocker cover, has had new seals but still leaking as per the link below.

https://youtu.be/QC5TwUqTQRI
Davegsm82 is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
PD150 ARL Engine conversion package r44ms k Private TDI Items for Sale/Wanted 0 August 25th, 2015 06:14
FEELER: ARL PD150 engine with very low miles in MD/DC/VA manics01 Private TDI Items for Sale/Wanted 1 August 12th, 2015 15:19
pd150 engine bits for sale - ARL code devonutopia Private TDI Items for Sale/Wanted 3 March 2nd, 2011 01:56
FS: ARL (pd150) Engine bits devonutopia Private TDI Items for Sale/Wanted 0 March 8th, 2006 08:56


All times are GMT -7. The time now is 09:10.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Copyright - TDIClub Online LTD - 2017
Contact Us | Privacy Statement | Forum Rules | Disclaimer
TDIClub Online Ltd (TDIClub.com) is not affiliated with the VWoA or VWAG and is supported by contributions from viewers like you.
1996 - 2017, All Rights Reserved
Page generated in 0.16051 seconds with 11 queries
[Output: 103.30 Kb. compressed to 88.02 Kb. by saving 15.28 Kb. (14.79%)]