Injector knock

[shonkers]

Forgot thanks to airthies

[shonkers]

Redid the scan and it’s the same codes p0149, p1564, and p0500 vss (vehicle speed sensor) sensor which can cause knocking so we checked the wiring and that seemed ok but there was another code ( forgot) right abs sensor which i’m going to change first it needs doing and if that doesn’t cure it then at least iv’e eliminated it

[knobby1]

Redid the scan and it’s the same codes p0149, p1564, and p0500 vss (vehicle speed sensor) sensor which can cause knocking so we checked the wiring and that seemed ok but there was another code ( forgot) right abs sensor which i’m going to change first it needs doing and if that doesn’t cure it then at least iv’e eliminated it

The P0149 & P1564 point to a dead/dying timing solenoid...very common on the TDDi's. Worth checking the cam timing too...could be out by just one tooth and would cause dramas.

VSS or ABS sensors won't cause knocking. On the Mk6 the VSS is on the gearbox and is the sensor for the speedo....basically unrelated to the other fault codes.

Lord Knobrot (Smithy)

[metalworker0]

Your p0500 is the abs system sensors .. can also be reluctor rings corroded , broken, cracked .. and slipping on axle

if it has abs .. it does not a have gearbox sensor .. is that right ?

all the best.mark

[shonkers]

Yes i’m preparing myself for the timing solenoid, i’ll check cam timing first, don’t suppose there’s a way to test the solenoid is there? and yes i have got abs and vss cheers

[knobby1]

if it has abs .. it does not a have gearbox sensor .. is that right ?

all the best.mark

No...All Mk6's use the gearbox sensor for the speedo, whether they have ABS or not. Only the Mk7's use the ABS sensors for the speedo.

Lord Knobrot (Smithy)

[shonkers]

How do i check cam timing without taking timing chain cover off? to see if it’s slipped a tooth,

[metalworker0]

Think you've got to be quite experienced in reading forscan results , graphing it etc

see here
viewtopic.php?t=174192

note if removing the timing cover .. its one use only , you will be buying a new cover .. and if its done upwards of 180 thousand miles .. you may as well buy the chain kit, as by then, you are quite far into it .

all the best.mark

[knobby1]

How do i check cam timing without taking timing chain cover off? to see if it’s slipped a tooth,

You can't really...crank & cams need to be pinned to be definitive.

Lord Knobrot (Smithy)

[shonkers]

Update:- Hi guys, I didn’t check cam timing after all ‘cos i thought if it’s had a new pump they would have done the chain whilst at it, i shouldn’t assume really ‘cos im not even sure it’s had a new pumpit just looked cleaner than everything else around it. Anyway the upshot is i bit the bullet and fitted a new timing solenoid based on the fault codes bit tricky but doable but now the engine only cranks 2 or 3 times then gives up as if batteries are dead but they’re only 3 months old(varta) so had them tested and they’re fine, also i had changed all 4 terminal clamps ‘cos the old ones were broken and i used to wedge a nail in to get them tight so i double checked them and scrubbed the connections with wire wool, so thinking it could be a bad earth checked the one from gearbox to chassis and it sheared off as i loosened it so welded it on surely can’t get better than that. Then i began to suspect the starter motor but when i saw a similar post where it only turned over 3 or 4 times and someone said it could be hydraulicing i remembered that when i had inlet manifold off i put rags in the 8 ports to stop crap falling in and whilst i was changing the solenoid it rained overnight and with the scuttle panel off the rags were soaked horror, so took them out and blasted water out with air blower gun some didn’t have much water in but one had quite a bit which took a lot of blowing out so i’m now thinking did water get past an open valve and is sitting on the piston? what are your thoughts guys take the glow plugs out and spin her up? sorry for long winded essay thought it best to give all the info

[Airthies]

Can you turn it over by hand with a socket on the crank pulley?

Sent from my Pixel 8a using Tapatalk

[shonkers]

Will try in the morning

[shonkers]

Yes it’s turning over by hand which is good news it aint locked up, i suppose i need to look at starter, i should see battery voltage at the thick red cable going into starter right?

[shonkers]

Well i couldn’t find where the earth from the battery connects to the chassis it disappears through a hole near front left of battery box but can’t see from underneath where it comes out?, would be good to know for future ref anyway took starter off to double check things powered it up from jump leads and i reckon it’s knacked i’ll add a vid to see what you guys thinks

[shonkers]

Vid extension not allowed! what does that mean? vid too long? now can’t figure out how to shorten it old iphone doh, anyway it’s going really slow with jump leads