Warm/hot starting problem
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    1. #1
      Junior Member rich1068's Avatar
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      Warm/hot starting problem

      Troops,

      2005 2.5T in my signature.

      Occasionally the engine fires, runs for a second or two and then dies necessitating another attempt but this time with a bit of throttle. Doesn't happen all the time but when it does the engine is warm, say parked up for half an hour after a run.

      Could be a million things I suppose but any pointers?
      2005 Volvo V70 2.5T SE AWD
      2014 Volvo XC90 D5 Executive

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    3. #2
      Member Antherzoll's Avatar
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      I had a similar issue with leaking injectors.


      http://forums.swedespeed.com/showthr...Pressure-Issue
      Sent from my Nexus 5 using Tapatalk
      Last edited by Antherzoll; 01-18-2017 at 08:42 AM.
      2005 XC70 Crystal Green | Hilton | 16T | 110k mi

    4. #3
      Member wagonfan00's Avatar
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      I was gonna go for a throttle body cleaning. Maybe try starting it once with the MAF unplugged?....


      Sent from my iPhone using Tapatalk
      Current: 2002 V70 Base N/A M56 161k (Straight pipe, short shift kit) 1988 745T AW-71L 249k (BC coilovers, Hydras, eBay MBC @13psi, 2.5" Catless exhaust **for sale**)
      Past: 2008 Mini Cooper S Clubman R55 Getrag 6 Speed (Stock) 1997 855 T5 Auto 300k
      IG: psychocross_v70

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    6. #4
      Junior Member XDS2SW's Avatar
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      Quote Originally Posted by rich1068 View Post
      Troops,

      2005 2.5T in my signature.

      Occasionally the engine fires, runs for a second or two and then dies necessitating another attempt but this time with a bit of throttle. Doesn't happen all the time but when it does the engine is warm, say parked up for half an hour after a run.

      Could be a million things I suppose but any pointers?
      My 2004 had a very similar issue that ended up being a bad MAF. Tried cleaning the original but it requires replacement.


      Sent from my iPhone using Tapatalk
      2004 S60R Flash Green Atacama M66
      2004 V70 2.5T
      1997 S90

    7. #5
      Junior Member rich1068's Avatar
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      Quote Originally Posted by wagonfan00 View Post
      I was gonna go for a throttle body cleaning. Maybe try starting it once with the MAF unplugged?....


      Sent from my iPhone using Tapatalk
      Quote Originally Posted by XDS2SW View Post
      My 2004 had a very similar issue that ended up being a bad MAF. Tried cleaning the original but it requires replacement.


      Sent from my iPhone using Tapatalk
      Even with my limited spannering skills throttle body had crossed my mind. I can look at the MAF too.

      Quote Originally Posted by Antherzoll View Post
      I had a similar issue with leaking injectors.


      http://forums.swedespeed.com/showthr...Pressure-Issue
      Sent from my Nexus 5 using Tapatalk
      Much appreciated.

      Cheers guys. I'll look into these suggestions.
      2005 Volvo V70 2.5T SE AWD
      2014 Volvo XC90 D5 Executive

    8. #6
      Junior Member rich1068's Avatar
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      ...but still haven't. And now it occasionally cuts out in traffic. This means that now my wife point blank refuses to take it anywhere (no bad thing ). Anyhoo, it's in for a service and MOT next week. I'll get my mechanic to investigate because in all honesty I have not got the time. But I will annoy him by suggesting what was said on here...
      2005 Volvo V70 2.5T SE AWD
      2014 Volvo XC90 D5 Executive

    9. #7
      Junior Member rich1068's Avatar
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      Update on this.

      I had the service done and got the guy to look at the throttle body. A bit of a (separate) issue with the battery led me to believe the problem was solved but I'm now told that warm/hot starts are problematic again and after a few minutes tickover in a car park the engine just died. So I'm looking at the MAF now. Hoping it's not something more £££.
      2005 Volvo V70 2.5T SE AWD
      2014 Volvo XC90 D5 Executive

    10. #8
      Junior Member rich1068's Avatar
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      Bought some cleaner so I'm hoping to tackle the MAF today or tomorrow but just a thought, if this is a fuel problem could it possibly be the fuel filter? This year I'm due fuel filter and timing/auxiliary belts as per the service book. Anyone?
      2005 Volvo V70 2.5T SE AWD
      2014 Volvo XC90 D5 Executive

    11. #9
      Junior Member rich1068's Avatar
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      My, my. Those 5 pointed security Torx bits are a PITA aren't they?
      2005 Volvo V70 2.5T SE AWD
      2014 Volvo XC90 D5 Executive

    12. #10
      Junior Member rich1068's Avatar
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      MAF and throttle body done. We'll just have to see if that cures it. The throttle body really needed it.
      2005 Volvo V70 2.5T SE AWD
      2014 Volvo XC90 D5 Executive

    13. #11
      Junior Member rich1068's Avatar
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      Richard and his one man thread here.

      Still not 100%. Occasional warm/hot starting trouble again (needs a bit of throttle to get it going), occasional stalling if left idling. Also I've had P2177 System Too Lean Off Idle Bank 1 on the generic scanner. Accompanied by the orange emissions light this occurs after the car has had trouble starting and I've had to use some throttle. I can clear the code and not see it again for a few days.

      I should stress that other than this the car is flying. It runs really well and took me over The Snake to Manchester to pick up my new wheels with no drama at all. The throttle body has had a good clean and I've used contact cleaner on the MAF but I'm not sure what good that did. I'm going to check hoses/air filter but in my mind I'm still thinking it's MAF related. But I don't know if that's just because it's easy (though expensive) to replace.

      Anyone?
      2005 Volvo V70 2.5T SE AWD
      2014 Volvo XC90 D5 Executive

    14. #12
      contact cleaner may leave residue.
      CRC makes a MAF specific cleaner.
      i tried it on ours with absolutely no change in MAF readins in VIDA.

      My wife experienced warm start issue two weeks ago, and others here have told me that the MAF readins at idle looked low.
      Mine hovers around 11.5kg/h at idle. I suspect I'll be replacing it.
      I just slotted the stupid 5 point screws and replaced them with some stainless phillips so I can clean the MAF when I do filter changes and not have to keep track of another set of specialty bits.

    15. #13
      Junior Member rich1068's Avatar
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      Googling seemed to suggest contact cleaner was the way to go but tbh I really couldn't see how it was going to make any difference and it didn't http://www.halfords.com/motoring/eng...-cleaner-400ml

      It seems obvious to avoid the cheap as chips eBay generic MAFs if I do go down that route but the Bosch ones aren't cheap. This one is more reasonably priced but I'm still suspicious even though they appear to be based in the UK.
      2005 Volvo V70 2.5T SE AWD
      2014 Volvo XC90 D5 Executive

    16. #14
      that price doesn't seem outlandish.

      Rockauto has Bosch MAFs for $108US, which I suspect is pretty close to 95GBP.
      I'll probably regret it, but someone has to be the guinea pig.
      THere's $55 Walker MAF on rockauto as well. At least I can return it and buy the bosch if it fully sucks.
      A cheap MAF that doesn't suck would be great for everyone.

    17. #15
      Junior Member rich1068's Avatar
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      Hmm. I was thinking that Bosch MAF I linked to looked suspiciously cheap. Especially as my local Euro Car Parts has them for £250.
      2005 Volvo V70 2.5T SE AWD
      2014 Volvo XC90 D5 Executive

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