testing glow plugs

[passat 130 tdi]

you may find that changing the belt and a new tensioner may cure your problems if the belt is as loose as it is in the videos , it may have jumped a cog or two did it start giving you trouble after giving it some hard acceleration from a junction by any chance ??????

no idea exactly when it happened or whats caused it tbh .... its always been drivin hard since the remap , its at the garage now getting done.... lad says don't be surprised if a tooth or two have sheared off the belt..... as long it gets sorted and boy am I glad I spotted it before it snapped ....

[passat 130 tdi]

had the motor stripped down today by a local mech , turns out the roller bearing that sits under the main belt tensioner has collapsed and the belts tension was lost, thus putting the pump timing a mile out , looking to get a new roller bearing in the morning and hopefully have the car back to its old self.... hopefully being the word at the moment...

[passat 130 tdi]

well new timing belt and water pump all tensioners including the small tensioner behind the cover , changed , timing in the correct place now as it was out from the last garage that changed the belt when I 1st bought the car , and all I can say is WOW !!!!! ... super quick now , a lot quieter , boost comes in sooner , starts 1st time and ticks over like a new car... excellent job £315 all in ..... looks like my audi a6 is on hold for year or two now ... thanks to all who contributed during the non starting problems I had... it just goes to show how important the pump timing has to be for the pd engine to fire up .... the damper tensioner had failed causing the belt to run slack ...

[PCDoctor]

Good job and well done

The disconnecting the temp sensor was a red herring by the look of it..

I Have white smoke on start up from cold well under 10 to 12 degrees and all glow plugs changed and voltages correct as well as VCD reporting no problems

I Do notice from cold the sync angle changes from 1.5 to 0 when she is all warmed up

I May have to go down this route you have taken

[passat 130 tdi]

indeed matey , taking the temp sender off was simply forcing the glow plugs to glow ,which was enough to get it to fire up . once running the ecu was correcting the fuel timing the best it could. well that's my theory anyways .... I also found changing the glow plug glow time using vcds helped a lot also , maybe you might want to give that a try ...

[caldirun]

well new timing belt and water pump all tensioners including the small tensioner behind the cover , changed , timing in the correct place now as it was out from the last garage that changed the belt when I 1st bought the car , and all I can say is WOW !!!!! ... super quick now , a lot quieter , boost comes in sooner , starts 1st time and ticks over like a new car... excellent job £315 all in ..... looks like my audi a6 is on hold for year or two now ... thanks to all who contributed during the non starting problems I had... it just goes to show how important the pump timing has to be for the pd engine to fire up .... the damper tensioner had failed causing the belt to run slack ...

There is no pump timing on the PD engine, it was the camshaft/injector timing that had changed.

[passat 130 tdi]

same thing in theory ,just a different set up . don't be pedantic.

[caldirun]

i wouldn't know, +1 to you , i just diagnosed and for 2 weeks a problem that i finally sorted out . thanks anyways for your massive input.

I would say that the garage that you paid £300+ to diagnosed and sorted your problem, I was just correcting your statement re the pump timing on a PD engine to avoid misleading others, sorry if I upset you!

[passat 130 tdi]

feel free to post your theories .