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  1. #1
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    1994 850 t5 manual

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    another blasting problem please help me :mad:

    Jus fitted an ntc switch (temp switch) today as it came up on the diagnostic reader but still having the holding back problem and its driving me crazy.
    Drives fine when driven nicley but as soon as it hits boost it judders and doesent go anywhere, the boost gauge goes nearly all the way into the white which i cant understand aswell its really grating on me now as the engine has done 174k and puurrrs lovley on tickover and smooth when driven nicley jus need to sort this problem out, a
    Any help would be appreciated.

  2. #2
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    Still more fettling needed,
    will it never end?
    stribo's Avatar
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    Sounds like the clutch is slipping, do the revs rise without any increase in speed?

  3. #3
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    5 pot heart of a Volvo
    T5frankie's Avatar
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    sounds like leads mate

  4. #4
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    destroying super unleaded

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    I'd say leads as well.

  5. #5
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    the true nut job
    PHIL V70R's Avatar
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    sounds like a maff problem 2 me...any one near you with a good working one..
    who puts 300bhp in a volvo.....DONT MIND MY SMILE, THE VOICES IN MY HEAD ARE JUST TELLING DIRTY JOKES........v70R...hids..black mesh grill...17 inch R alloys..groved and drilled front and rear disc..lots bling..,k-n filter..yamaha R1-98 with nos..touring bike honda varadero xl 1000...

  6. #6
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    228k and still not broke it!

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    Shrek's car did something similar, coughing under load. We changed the whole ignition system and fitted new injectors and it runs beautifully. My money's on your leads/dizzy/coil.
    19t, greens, 3" inlet, 3" downpipe with race cat, V70R catback, autotech map...

    310.2bhp / 333ft/lb

    2016 Swedish Day UK "Best Modified Swede"
    SOLD

    Got an old discovery now.

  7. #7
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    1994 850 t5 manual

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    Ive swapped the maff over but same problem but wen i unplug it and drive it it pulls with no hesitation but theres no grunt behind the pull

  8. #8
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    1994 850 t5 manual

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    Quote Originally Posted by stribo View Post
    Sounds like the clutch is slipping, do the revs rise without any increase in speed?
    No its not clutch slip mate

  9. #9
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    shrekblackR's Avatar
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    As MRP said ignition mine goes like to wind now
    BLACK PEARL IN DA HOUSE ARRRGGGG!!!!!!

  10. #10
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    james's Avatar
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    I had a similar problem and it turned out to be spark plugs, I was surprised at this because the plugs had only been in four to five months

  11. #11
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    1994 850 t5 manual

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    What did you put in mate bosch coppers??

  12. #12
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    james's Avatar
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    I've usually put genuine Volvo ones in but last time I tried denso platinums , I didn't think they would wear out so quick I disregarded the plugs and spent weeks faffing with intercooler pipes etc looking for leaks

  13. #13
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    james's Avatar
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    A lot of people on here recommend genuine Volvo plugs plus they're only around £30 on fleabay,I think I paid around £40 for the denso platinums a d they didn't last as long as genuine Volvo ones, hope this helps

  14. #14
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    1994 850 t5 manual

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    Yh this helps alot mate ive got denso plats now so thats my next port of call ill keep u posted

  15. #15
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    merc85's Avatar
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    I sell Bosch plugs which a OE volvo plugs £28.50 inc vat a set

  16. #16
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    You know it makes sense........

    Always fit VOLVO plugs made by Bosch to VOLVO specifications.

    Don`t fit Bosch plugs as they cannot sell the Volvo spec. under the Bosch name ones because of copyright!

  17. #17
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    Quote Originally Posted by 960kg View Post
    You know it makes sense........

    Always fit VOLVO plugs made by Bosch to VOLVO specifications.

    Don`t fit Bosch plugs as they cannot sell the Volvo spec. under the Bosch name ones because of copyright!
    Absolute twaddle i'm afraid

  18. #18
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    Quote Originally Posted by t5cookie View Post
    Yh this helps alot mate ive got denso plats now so thats my next port of call ill keep u posted
    How'd you get on bud?

  19. #19
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    1994 850 t5 manual

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    Yh put new plugs in still the same but i figgered out if i run up to temp with the maf sensor plugged in then disconnect the plug wen its running and take it for a blast its runs faultless jus got check engine light on but as soon as i plug it back in it holds back,

  20. #20
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    its getting there
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    Quote Originally Posted by t5cookie View Post
    Yh put new plugs in still the same but i figgered out if i run up to temp with the maf sensor plugged in then disconnect the plug wen its running and take it for a blast its runs faultless jus got check engine light on but as soon as i plug it back in it holds back,
    so you need a maf sensor then? let me know mate I got a spare knocking about somewhere and ill check it on mine to make sure it works


    full respray..plenty of body mods..comets..ray cat back noise pipe..decat and wrapped downpipe..me7 exhaust manifold..3" throttle body with ported inlet manifold..blue injectors..adjustable fuel reg..reverse intercooler pipework..19t..open cone air filter..255 fuel pump..m-r-p short shift..boost gauge..unknown remap..adjustable suspension..lightweight crank pulley..n/a cams..stripped out interior..and a heavy right foot


 

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