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View Full Version : Question golf pd 130 no loss of power but missing lumpily and shakily on tickover



lessjo
26-03-2017, 08:22 PM
Good evening,
First off my little golf ordinary golf mk 4 td gt tdi pd 130 2002 gold or sandy coloured, it says beige on the docs but I dont think thats how its colour should be described anyway, the missus and I love it. Its still immaculate, had it for over 10 years, and looked after it no matter what the cost, but I've had a few problems with loss of power, and the tickover being lumpy to say the least, sounds like its misfiring but not. .Anyway I though I'd kick myself in the butt and sort her out so I whip her up for an mot on Friday bein as its been garaged for months and lol she flew through....I was gobsmacked but happy so may I say what a lovely day its been, so this weekend, Ive managed to sort out the window that broke because of the plastic clips in the frost for a tenner and another £8 for metal glass holder/brackets rather than plastic ones that broke in the frost (Well worth doing). But I havent managed to sort the lumpy tickover with a little shakiness, and when switched off sounds like a mounting is broken and a sort of clattering sound for a second, if that. So I did the compression which was slightly down on one cylinder so I have changed the camshaft and the lifters as I read that they dish from cam wear then did compresssion test and that was now fine, But it still ticked over shakily, so I changed the loom in the head, still it ticked over like a bag of bolts checked all the engine and gearbox mountings and theyre fine, so Im down to the last few things it could be but firstly let me say that I have noticed if I hold the tickover up its fine, so before I go blaming the dual mass flywheel could anyonesuggest anything else that could be wrong please

micheal balbrig
26-03-2017, 09:09 PM
The mounting (engine bracket)where it bolts to engine may be loose / broken,or the threads may be stripped where engine bracket secures the mounting,just possibilities to check

grant19841
26-03-2017, 09:30 PM
If the car does this when you shut the engine down or when you drive and give it a good rpm thrash then come of the accelerator fast so the rpm's drop and still feel the vibrations and rattle then it's more than likely a dmf issue.


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lessjo
27-03-2017, 08:53 AM
Thanks for the reply, but I have checked the mountings and they appear to be fine. I'll give the thrashing it and laying off the accellorator and get back to you, I have read that if you put it in reverse and it tries to stall without riding the clutch can be a symptom of dmf issue too.

micheal balbrig
27-03-2017, 09:42 AM
DMF symptoms can produce a vibration like misfiring when idling,slight engine movements also which can be felt in car.

When driving at modest speed and altering revs up and down slightly a vibration can be produced when dmf is faulty.

Because you described more noise etc I suggested looking for broken mount bolts etc as it is fairly common

If the DMF is causing the problem and you replace it, you will immediately notice the smoother tick over as well as a much smoother comfortable car to drive.

Just another thought, Is the engine to subframe mount in good condition,and is the exhaust bracket secure behind the engine,the welds can break,causing a rattle with engine movement.

lessjo
29-03-2017, 01:00 PM
Well nothing following a good thrash no difference if you let the revs off whilst its going or going uphill backwards.. its got loads of power but on tickover still lumpy, you can see it if you leave the door open it shakes like mad.. and a sound like a clatter when the engine is turned off, like a mounting is gone, so I just brought it to the garage and they checked the mounts as well with no result.
Now this may or may not be something, so please comment if you have any ideas please, but on my thrashing her the clutch pedal felt a bit strange after about 3 miles, seemed like it lost top movement as if it wasnt coming back up properly and the bite seemed way down to the bottom then it lost clutch alltogether. turned her off and now its back to the low bite again but changing gear ok. seems like it doesnt spring back as it should and the bite is much closer to the floor

micheal balbrig
29-03-2017, 02:59 PM
Probably best to replace in case of total failure,if it has 10 yrs on same clutch it is good going.

grant19841
29-03-2017, 03:09 PM
If the mounts are fine and the garage double checked everything else then It's most likely a dmf failure,
If the dmf is failing it becomes unbalanced and spins unevenly so that's probably why the clutch felt the way it did, the thrust bearing and cylinder will be under strain if the dmf balance is out


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lessjo
29-03-2017, 05:10 PM
So decisions now, single mass vs dual mass? what is the differance and has anyone done a single mass conversion? although I have had a good read that the clutch pedal being low could be due to the master cylinder as it feels like it doesnt spring up when depressed and the bite is really low.. So I'm not sure its a symptom of dmf failure.

grant19841
29-03-2017, 05:21 PM
So decisions now, single mass vs dual mass? what is the differance and has anyone done a single mass conversion? although I have had a good read that the clutch pedal being low could be due to the master cylinder as it feels like it doesnt spring up when depressed and the bite is really low.. So I'm not sure its a symptom of dmf failure.

I don't recommend the smf conversion, the dmf is not just there for a comfy ride it's there to protect the gearbox also.


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grant19841
29-03-2017, 05:43 PM
So decisions now, single mass vs dual mass? what is the differance and has anyone done a single mass conversion? although I have had a good read that the clutch pedal being low could be due to the master cylinder as it feels like it doesnt spring up when depressed and the bite is really low.. So I'm not sure its a symptom of dmf failure.

The clutch could be the master or the slave cylinder, an easy way to check is the "brake fluid" you lost any??

If those was to fail and the peddle was to stay on the floor then yes you more than likely have air in the system caused by a leak, but don't forget that a slave cylinder can be damaged by an unbalanced dmf and it's common for these to leak a little due to this hence the air in the system.

Sorry me being here and you being there I'm unable to be 100%...
But all my advice is purely possible causes, the rest is up to you to verify it yourself in your mind.




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