Engine: 2.5: - V70 TDI Sluggish Slow MAF Timing

blrover · Apr 30th, 2007, 22:30

Hello, I've just aquired a 99 v70 tdi and it is only really starting to pull after 2500rpm its really sluggish from a stand still and sometimes smokes on startup. Also it might just be me but it also seems to start with quite a jolt from then engine.

It's just had its timing belt done ive no idea who did it mind you.

What do we think?

Many Thanks

outnumbered · Apr 30th, 2007, 22:39

Quote:

Originally Posted by blrover

Hello, I've just aquired a 99 v70 tdi and it is only really starting to pull after 2500rpm its really sluggish from a stand still and sometimes smokes on startup. Also it might just be me but it also seems to start with quite a jolt from then engine.

It's just had its timing belt done ive no idea who did it mind you.

What do we think?

Many Thanks

hi
welcome to the forum. first thing check all the vac pipes and electrical connectors, secondly have the codes read either by volvo or an indi, has the pump timeing belt been done and has this been set up properly, also has the timeing belt been done properly, if its out slightly it will make a difference. the car manegement system is msa 15.8 so it will have to be hooked up for the dtcs to be read. hope that helps and i no a lot of questions lol. oh forgot to say check your top engine mount for the jolt problem
mike
850 tdi

carswaps · Apr 30th, 2007, 22:56

Hi,

I bought a v70 tdi...drove it home 60 miles and it smoked all the way !!!
1st thing i did was give it a good service ..oil....a good semi synthetic, oil filter, fuel filter, a little tip buy some injector cleaner and put it straight into the fuel filter before fitting the new one, this way it dosent get diluted by putting it into the fuel tank.
2nd do a search on EGR blanking, I,ve had 3 Tdi volvos all of which i,ve blanked off the EGR valve and used for towing.
3rd take it for a good thrash, dont be scared to give it some as slow round town driving just cloggs it up.
The above v70 i bought ran clean after i did these things
Hope this helps

blrover · May 1st, 2007, 22:47

thanks for the responses guys its looking more like the maf im gonna change it out as a new one is only 60 quid worst case i'll put it back on ebay if it dosen't fix it.

BillB · May 2nd, 2007, 13:33

I've just experienced this and, in my case, it was a failing MAF sensor. The problem was I had the codes read by a dealer (CEL light was on permanently after being intermittent for a long time) so I told them to change the MAF there and then as, otherwise, I'd have had to pay them again to clear the code. So I paid the full price for the MAF (£200 plus labour). Is the £60 one new? If so, it's a bargain but you should only use Bosch IMO. The difference was DRAMATIC in my case - like a new car. Of course, it could be the pump timing but it would tend to smoke all the time, in that case. They all smoke a little when accelerating. Try the MAF sensor. Regards.

blrover · May 3rd, 2007, 20:45

Just to keep you all posted the 60 quid MAF fixed it, maf came from ebay and was brand new.

cheers

outnumbered · May 3rd, 2007, 21:02

Quote:

Originally Posted by blrover

Just to keep you all posted the 60 quid MAF fixed it, maf came from ebay and was brand new.

cheers

hi
glad you got it fixed, wish mine was 60 quid
mike

Apr 30th, 2007, 22:30	#1
blrover New Member Last Online: Jan 13th, 2009 22:44 Join Date: Apr 2007 Location: warwickshire	V70 TDI Sluggish Slow MAF Timing Hello, I've just aquired a 99 v70 tdi and it is only really starting to pull after 2500rpm its really sluggish from a stand still and sometimes smokes on startup. Also it might just be me but it also seems to start with quite a jolt from then engine. It's just had its timing belt done ive no idea who did it mind you. What do we think? Many Thanks

Apr 30th, 2007, 22:56	#3
carswaps Member Last Online: Feb 28th, 2024 08:19 Join Date: May 2006 Location: West yorkshire	Hi, I bought a v70 tdi...drove it home 60 miles and it smoked all the way !!! 1st thing i did was give it a good service ..oil....a good semi synthetic, oil filter, fuel filter, a little tip buy some injector cleaner and put it straight into the fuel filter before fitting the new one, this way it dosent get diluted by putting it into the fuel tank. 2nd do a search on EGR blanking, I,ve had 3 Tdi volvos all of which i,ve blanked off the EGR valve and used for towing. 3rd take it for a good thrash, dont be scared to give it some as slow round town driving just cloggs it up. The above v70 i bought ran clean after i did these things Hope this helps

May 1st, 2007, 22:47	#4
blrover New Member Last Online: Jan 13th, 2009 22:44 Join Date: Apr 2007 Location: warwickshire	thanks for the responses guys its looking more like the maf im gonna change it out as a new one is only 60 quid worst case i'll put it back on ebay if it dosen't fix it.

May 2nd, 2007, 13:33	#5
BillB VOC Member Last Online: Apr 24th, 2024 13:58 Join Date: Dec 2002 Location: Bristol	I've just experienced this and, in my case, it was a failing MAF sensor. The problem was I had the codes read by a dealer (CEL light was on permanently after being intermittent for a long time) so I told them to change the MAF there and then as, otherwise, I'd have had to pay them again to clear the code. So I paid the full price for the MAF (£200 plus labour). Is the £60 one new? If so, it's a bargain but you should only use Bosch IMO. The difference was DRAMATIC in my case - like a new car. Of course, it could be the pump timing but it would tend to smoke all the time, in that case. They all smoke a little when accelerating. Try the MAF sensor. Regards.

May 3rd, 2007, 20:45	#6
blrover New Member Last Online: Jan 13th, 2009 22:44 Join Date: Apr 2007 Location: warwickshire	Just to keep you all posted the 60 quid MAF fixed it, maf came from ebay and was brand new. cheers

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