V40 1.9d idle noise rattle/click

BazWithers · Apr 20th, 2017, 15:25

Can Anyone tell me what is making this noise? it only does it on idle, goes when the revs build. its intermittant (stops for a second or two every now and again. seems to be quiet when the engine is cold and gets a bit louder once its warm.
Clip on youtube link below, I cant work out how to attach a clip directly to the post on this forum!

https://www.youtube.com/watch?v=dhZT50e29a4

aldred309uk · Apr 20th, 2017, 16:27

I had issues with my 1.9d when I first got it. In second gear it would dump all boost at 2.5k then after a few months it stopped. Then I realised the boat was fluctuating and fluttering like I had fuelled up with kangaroo juice.

Had the turbo checked out and all was fine. Unplugged maf sensor and the car worked perfectly and plugged it back in and was back on kangaroo juice.

Bought a new maf sensor but it didn't fix the problem. I blanked off my egr valve to test that and it fixed the car. I think the egr actuator was fluttering the valve open and closed which was making the exhaust pressure fluctuate.

Does the car hesitate or lose boost whilst driving? And gentle pulsing of power whilst cruising at a speed?

BazWithers · Apr 20th, 2017, 16:50

With the maf plugged in I have no boost until 4000 or more revs. Can't say about the hesitation

BazWithers · Apr 20th, 2017, 19:00

Can I unplug the egr and run it to see if the noise stops?

aldred309uk · Apr 20th, 2017, 21:10

Not sure about unplugging it, I used some thin sheet metal (cut up drinks can) and put it between the actuator and the valve. Three bolts to remove it then just place the face into the metal and trace around and cut. The bolt holes were awkward with a drill but worked. Then just refit the actuator with the metal between that and the valve.

Carb cleaner into the manifold really helped response and low down acceleration. Just don't use the accelerator for a few minutes after starting and direct it to sound horrible as things burn off and move through.

BazWithers · Apr 21st, 2017, 12:15

I've tried unplugging the egr, didn't make any difference. Could this noise be the vvt?

aldred309uk · Apr 21st, 2017, 19:53

That question is beyond me I'm afraid.

ilikewatch · Apr 23rd, 2017, 12:57

Quote:

Originally Posted by BazWithers

Can Anyone tell me what is making this noise? it only does it on idle, goes when the revs build. its intermittant (stops for a second or two every now and again. seems to be quiet when the engine is cold and gets a bit louder once its warm.
Clip on youtube link below, I cant work out how to attach a clip directly to the post on this forum!

https://www.youtube.com/watch?v=dhZT50e29a4

My last 1.9D started making a very similar noise when it got to about 140K, it went away as soon as the revs increased.

In my case it was the clutch in the OAP (overrunning alternator pulley).

atco · May 27th, 2017, 22:39

just wandering if you solved the problam only my v40 td has got the same noise and its driving me mad.

EmmaK1 · May 27th, 2017, 23:54

Loose/broken baffles in front silencer box.

Engine vibrates more at tickover so noisy. As revs rise smoother so rattle stops.

Mine, 2002, makes an awful noise when stopping.

Apr 20th, 2017, 15:25	#1
BazWithers New Member Last Online: Feb 1st, 2018 08:38 Join Date: Feb 2017 Location: Newbury	V40 1.9d idle noise rattle/click Can Anyone tell me what is making this noise? it only does it on idle, goes when the revs build. its intermittant (stops for a second or two every now and again. seems to be quiet when the engine is cold and gets a bit louder once its warm. Clip on youtube link below, I cant work out how to attach a clip directly to the post on this forum! https://www.youtube.com/watch?v=dhZT50e29a4

Apr 20th, 2017, 16:27	#2
aldred309uk Member Last Online: Apr 20th, 2021 22:33 Join Date: Sep 2015 Location: Blackburn	I had issues with my 1.9d when I first got it. In second gear it would dump all boost at 2.5k then after a few months it stopped. Then I realised the boat was fluctuating and fluttering like I had fuelled up with kangaroo juice. Had the turbo checked out and all was fine. Unplugged maf sensor and the car worked perfectly and plugged it back in and was back on kangaroo juice. Bought a new maf sensor but it didn't fix the problem. I blanked off my egr valve to test that and it fixed the car. I think the egr actuator was fluttering the valve open and closed which was making the exhaust pressure fluctuate. Does the car hesitate or lose boost whilst driving? And gentle pulsing of power whilst cruising at a speed? __________________ Phase 2 1.9tdi V40

Apr 20th, 2017, 21:10	#5
aldred309uk Member Last Online: Apr 20th, 2021 22:33 Join Date: Sep 2015 Location: Blackburn	Not sure about unplugging it, I used some thin sheet metal (cut up drinks can) and put it between the actuator and the valve. Three bolts to remove it then just place the face into the metal and trace around and cut. The bolt holes were awkward with a drill but worked. Then just refit the actuator with the metal between that and the valve. Carb cleaner into the manifold really helped response and low down acceleration. Just don't use the accelerator for a few minutes after starting and direct it to sound horrible as things burn off and move through. __________________ Phase 2 1.9tdi V40

Apr 21st, 2017, 19:53	#7
aldred309uk Member Last Online: Apr 20th, 2021 22:33 Join Date: Sep 2015 Location: Blackburn	That question is beyond me I'm afraid. __________________ Phase 2 1.9tdi V40

May 27th, 2017, 22:39	#9
atco Senior Member Last Online: Oct 8th, 2023 19:49 Join Date: Apr 2009 Location: cardiff	rattle just wandering if you solved the problam only my v40 td has got the same noise and its driving me mad.

Apr 20th, 2017, 16:50	#3
BazWithers New Member Last Online: Feb 1st, 2018 08:38 Join Date: Feb 2017 Location: Newbury	With the maf plugged in I have no boost until 4000 or more revs. Can't say about the hesitation

Apr 20th, 2017, 19:00	#4
BazWithers New Member Last Online: Feb 1st, 2018 08:38 Join Date: Feb 2017 Location: Newbury	Can I unplug the egr and run it to see if the noise stops?

Apr 21st, 2017, 12:15	#6
BazWithers New Member Last Online: Feb 1st, 2018 08:38 Join Date: Feb 2017 Location: Newbury	I've tried unplugging the egr, didn't make any difference. Could this noise be the vvt?

May 27th, 2017, 23:54	#10
EmmaK1 New Member Last Online: Mar 22nd, 2018 20:33 Join Date: Dec 2016 Location: Carlisle	Loose/broken baffles in front silencer box. Engine vibrates more at tickover so noisy. As revs rise smoother so rattle stops. Mine, 2002, makes an awful noise when stopping.

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