D5254T (to 2002, Audi) - strange noises and turbo lag

JamboV · Feb 11th, 2008, 13:15

Hello all
i'm new the wonderful world of volvo having recently purchased a 2000 V70 D5. (It is the 96-00 model.) I'm really pleased with it in general, but something doesnt seem right with the engine to me.

background.... 135k miles, fully serviced, returns about 40 - 45mpg. It feels gutless to me... with absolutely no power below 2300rpm. At about 2500rpm the turbo seems to really cut in. At this point i can hear a fairly load ticking noise. The noise is only detectable when the turbo comes in, and it sounds a similar to a blowing exhaust manifold in that the ticking sound is engine speed related and not turbo speed related.

I have had a good look and all the hoses seem to be connected to the turbo. If I squeeze the hose going into the inlet manifold and get someone to press hte throttle i can feel the turbo pressuring it up. i did notice some oil in this pipe, and in the bottom hose going into the intercooler. (I'm hoping this is just from a breather??)

I dont see a lot of smoke coming from the exhaust. just the usual .... if i boot it after gentle town driving i get a dark puff. but i have noticed when i first start it some a small amount of smoke and i think it is blue :-( The engine management light has not come on. Now I dont know what else to check or do. I wondering if there is a wastegate valve sticking, or it my turbo has given up. Anyone got any ideas, recommeded checks, or reading? I love the car, i just want it working properly now!

James

Trickydicky · Feb 19th, 2008, 13:37

James

I wish I was making this post to help you out, but in fact I have an almost identical problem - same engine, 1999 V70 2.5D - I don't have the noises, but I am sure that the engine should be making more power than it does.
My mechanic friend reckoned I should look for a sticking wastgate as the turbo might be blowing, but some of the gas pressure it produces is being leaked away and not turned into air pressure into the intake. I'm going to look for that, and also in another thread I've read about possible leaking pipes connecting the turbo to the intake box or a faulty ECU which meters the intake air and feeds back (possibly false) messages to the turbo affecting the boost.
So I'm starting on the same journey as you and I'm going to take out my new air filter and recheck everything around the airbox, look for a possible wastegate lever on the outside of the turbo which I can move to see if it is working. then the pipes to/from the turbo and finally the ECU.
However, if anyone out there is reading this and can point to a specific solution then James and myself would be very grateful.

JamboV · Feb 26th, 2008, 13:15

Sorry to hear you've got similar problems too TrickyD.
I got fed up will my new car being a lazy slob, so i booked it in to volvo, butin the end I wasn't happy paying £80/h as having spoken to an engineer i wasnt filled with confidence that i would be getting value for money.

I decided to gamble and I ordered a new MAF sensor from GSF. (£143+vat). Fitted it on friday, and the difference is incredible. So much more power - It loses traction in 3rd gear in these slippy conditions!

so now i have full power, but i stick have a bit of a ticky sound. I've been wondering if as the cam belt hasn't been changed for 60k miles, my timing could be slightly out if the belt has stretched!?

so yet another MAF problem now solved! good luck TrickyD with your prob.

zx6rman_uk · Aug 22nd, 2008, 16:55

Not going to help at all but I have exactly the same symptoms.

Any updates at all on the culprit?

Regrads

Martin Cox · Aug 23rd, 2008, 13:15

The vacuum pump for the brake servo is a common contender for making odd ticking noises on these engines. Might be worth a listen around that area of the engine

Martin

bvs · Aug 23rd, 2008, 23:34

Hi
On a non volvo diesel engine,after head gasket replacement,I also had odd 'induction' and 'ticking' noise and lack of power.When I checked the 'rigging' of the cambelt...sure enough the cam sprocket was one tooth out,I went through the proper setting procedure and ..voila!! quiet engine !! judging by the 2 different paint marks on the sprockets,garages may not set the cambelts properly but do a quick mark for reassembly.
Not saying that this is your problem,but worth a few hours investigation.

regards baz

zx6rman_uk · Aug 24th, 2008, 08:02

Hi BVS.

I did have the cam belt change quite sometime ago. The noise didnt start then it was sometime later.

Anyhow, I've bought of Ebay a turbo so hopefully that will fix the problem and at £60 its got to be worth a shot.

Feb 11th, 2008, 13:15	#1
JamboV New Member Last Online: Dec 28th, 2012 13:45 Join Date: Jan 2008 Location: worthing	strange noises and turbo lag Hello all i'm new the wonderful world of volvo having recently purchased a 2000 V70 D5. (It is the 96-00 model.) I'm really pleased with it in general, but something doesnt seem right with the engine to me. background.... 135k miles, fully serviced, returns about 40 - 45mpg. It feels gutless to me... with absolutely no power below 2300rpm. At about 2500rpm the turbo seems to really cut in. At this point i can hear a fairly load ticking noise. The noise is only detectable when the turbo comes in, and it sounds a similar to a blowing exhaust manifold in that the ticking sound is engine speed related and not turbo speed related. I have had a good look and all the hoses seem to be connected to the turbo. If I squeeze the hose going into the inlet manifold and get someone to press hte throttle i can feel the turbo pressuring it up. i did notice some oil in this pipe, and in the bottom hose going into the intercooler. (I'm hoping this is just from a breather??) I dont see a lot of smoke coming from the exhaust. just the usual .... if i boot it after gentle town driving i get a dark puff. but i have noticed when i first start it some a small amount of smoke and i think it is blue :-( The engine management light has not come on. Now I dont know what else to check or do. I wondering if there is a wastegate valve sticking, or it my turbo has given up. Anyone got any ideas, recommeded checks, or reading? I love the car, i just want it working properly now! James

Feb 19th, 2008, 13:37	#2
Trickydicky New Member Last Online: Jan 7th, 2017 12:17 Join Date: Jan 2008 Location: Banchory View Photos By: Trickydicky	James I wish I was making this post to help you out, but in fact I have an almost identical problem - same engine, 1999 V70 2.5D - I don't have the noises, but I am sure that the engine should be making more power than it does. My mechanic friend reckoned I should look for a sticking wastgate as the turbo might be blowing, but some of the gas pressure it produces is being leaked away and not turned into air pressure into the intake. I'm going to look for that, and also in another thread I've read about possible leaking pipes connecting the turbo to the intake box or a faulty ECU which meters the intake air and feeds back (possibly false) messages to the turbo affecting the boost. So I'm starting on the same journey as you and I'm going to take out my new air filter and recheck everything around the airbox, look for a possible wastegate lever on the outside of the turbo which I can move to see if it is working. then the pipes to/from the turbo and finally the ECU. However, if anyone out there is reading this and can point to a specific solution then James and myself would be very grateful.

Feb 26th, 2008, 13:15	#3
JamboV New Member Last Online: Dec 28th, 2012 13:45 Join Date: Jan 2008 Location: worthing	Sorry to hear you've got similar problems too TrickyD. I got fed up will my new car being a lazy slob, so i booked it in to volvo, butin the end I wasn't happy paying £80/h as having spoken to an engineer i wasnt filled with confidence that i would be getting value for money. I decided to gamble and I ordered a new MAF sensor from GSF. (£143+vat). Fitted it on friday, and the difference is incredible. So much more power - It loses traction in 3rd gear in these slippy conditions! so now i have full power, but i stick have a bit of a ticky sound. I've been wondering if as the cam belt hasn't been changed for 60k miles, my timing could be slightly out if the belt has stretched!? so yet another MAF problem now solved! good luck TrickyD with your prob.

Aug 22nd, 2008, 16:55	#4
zx6rman_uk S60 D5 Owner Last Online: Aug 6th, 2010 13:11 Join Date: Aug 2008 Location: Dudley	Not going to help at all but I have exactly the same symptoms. Any updates at all on the culprit? Regrads

Aug 23rd, 2008, 13:15	#5
Martin Cox VOC Member Last Online: Today 11:17 Join Date: Dec 2001 Location: Hull	The vacuum pump for the brake servo is a common contender for making odd ticking noises on these engines. Might be worth a listen around that area of the engine Martin

Aug 23rd, 2008, 23:34	#6
bvs Blue TD Last Online: Mar 26th, 2011 13:32 Join Date: Jul 2008 Location: sussex	Hi On a non volvo diesel engine,after head gasket replacement,I also had odd 'induction' and 'ticking' noise and lack of power.When I checked the 'rigging' of the cambelt...sure enough the cam sprocket was one tooth out,I went through the proper setting procedure and ..voila!! quiet engine !! judging by the 2 different paint marks on the sprockets,garages may not set the cambelts properly but do a quick mark for reassembly. Not saying that this is your problem,but worth a few hours investigation. regards baz

Aug 24th, 2008, 08:02	#7
zx6rman_uk S60 D5 Owner Last Online: Aug 6th, 2010 13:11 Join Date: Aug 2008 Location: Dudley	Hi BVS. I did have the cam belt change quite sometime ago. The noise didnt start then it was sometime later. Anyhow, I've bought of Ebay a turbo so hopefully that will fix the problem and at £60 its got to be worth a shot.

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