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oil pressure sending unit

Discussion in 'Volvo Forum' started by data trucking, Apr 12, 2015.

  1. Apr 12, 2015 #1
    data trucking

    data trucking Bobtail Member

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    Apr 12, 2015
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    i have a 2000 volvo with a volvo d12 pre egr engine
    when i got the truck when you turn the key on but not starting the pressure shows 90 when you crank it is shows 90
    the other day the pressure droppped to 0 then the stop egine came on i stopped checked things out every thing was fine oil level and all was fine
    i cranked it up again the stop engine stayed off but had no pressure so i drove it a few miles it seemed ok no rattles or issues so im sure my sending unit is dead
    sorry about the long chat
    now my question is this where is the sending unit on a d12 pre egr volvo engine all the volvo dealers dont know they tell me it just in front of the emc bottom corner
    wrong its not the i have a cap there no sending unit they tell me it there but its not can someone help me out
    snap a picture and post it for me so i can find it
    been running the truck for a few day with no problem but real think i need to see my oil pressure
    and if i get a manual gauge where can i hook it up in that hole where the cap is right where they keep telling me is where my sencor is
    thanks guy for all your help
    dave
     
    data trucking, Apr 12, 2015
    data trucking, Apr 12, 2015
    #1
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  3. Apr 13, 2015 #2
    nasriza

    nasriza Road Train Member

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    It should be on driver side of engine behind ecm and right before the starter on the engine block halfway down from head I don't have one this old in the shop to snap a picture
     
    nasriza, Apr 13, 2015
    nasriza, Apr 13, 2015
    #2
  4. Apr 13, 2015 #3
    benrab

    benrab Medium Load Member

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    Apr 5, 2015
    Quebec ,Canada
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    The oil pressure sensor is located exactly at the place where the gentlemen explain to you on the previous post, for the information received from the dealer telling is foward the ECM it's true but for a D12D version only 2002 up to 2007, if your truck is 2000 you have a VED12C version engine.
     
    benrab, Apr 13, 2015
    benrab, Apr 13, 2015
    #3
  5. Apr 13, 2015 #4
    data trucking

    data trucking Bobtail Member

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    Apr 12, 2015
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    yes i think it is a ved12 not sure about the c
    when i gave them my vin nuber it showed the truck should have a detroit in it
    so now im wondering where do i find the engine vin number to see which engine i do have a have 2 book that was in the truck taht is how i found out it was a d12 engine sorry guy i have alwass drove a pete for 20 years this volvo is new to me
    any way i did look between the ecm and the started and still nothing it not gonna be behind that plastic cove where all the wires is hide in is it
    and also that hole infront of the ecm with the plug cap is that a good place to put a manual guage
    but i will double check it in the morningif it not raining to make sure i didnt over look it
    thanks guys for all your help
    dave
     
    data trucking, Apr 13, 2015
    data trucking, Apr 13, 2015
    #4
  7. Apr 14, 2015 #5
    benrab

    benrab Medium Load Member

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    Dave, about your engine version to identify it correctly look at the fuel filter head on LH side of the engine a VED12C have a fuel temp sensor threaded on the filter head and a VED12B don't have this sensor.
    Also check at the VIN sticker in the door jam LH at the seven position of the 17 character of the vin, a D-12 engine is identify by the letter (G) and a Detroit S-60 is identify by the letter (R) then you will know where the mistake is come from ?
    Also to order the parts on Volvo trucks and engine always use the truck serial number (last 6 digits) the engine serial number is rarely used.
    Ben
     
    benrab, Apr 14, 2015
    benrab, Apr 14, 2015
    #5
  8. Apr 15, 2015 #6
    data trucking

    data trucking Bobtail Member

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    Apr 12, 2015
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    yep the truck has a d-12 the 7th diget is a g so now i know what i have in it for sure thanks guys

    i wish that was the only problem i had in this truck now i can let yall know of a few more things im wodering about

    ( 2 ) engine brakes dont work

    ( 3 ) my check brakes warning on the tt keep poping up

    (4) my tcs light stays on enven with the rocker switch is off

    (5) check engine on the tt keeps poping up

    (6) MY MIRROR does not work as far as adjusting goes all the fusses are good but they dont work

    and im getting 4.5 mpg loaded but around 6 mpg empty is this normal
    and it suck going up hill loaded have to keep putting it in the lower gears to climb a hill i use to drive a pete with a 3406 e engine it had a whole lot more get up and go up hills
    well thats it for now
    still no thought on where i can screw a manual gauge in yet
    thanks guys for all your help
    dave
     
    data trucking, Apr 15, 2015
    data trucking, Apr 15, 2015
    #6
  9. Apr 18, 2015 #7
    data trucking

    data trucking Bobtail Member

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    Apr 12, 2015
    0
    thanks guy i did find it thanks for the help now i need to find one to put back in it
    volvo wants 265.00 got weak in the knees when he told me that they sure are proude of them
     
    data trucking, Apr 18, 2015
    data trucking, Apr 18, 2015
    #7
  10. Apr 18, 2015 #8
    Helowrenchturn2

    Helowrenchturn2 Medium Load Member

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    They are avail on eBay for less than $50
     
    Helowrenchturn2, Apr 18, 2015
    Helowrenchturn2, Apr 18, 2015
    #8
  11. Apr 18, 2015 #9
    Pablo-UA

    Pablo-UA Road Train Member

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    Borispol, Ukraine
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    temporary u can swap oil pressure sensor and fuel pressure sensor to avoid driving w/o engine protection.

    Oil pressure sensor differs a bit, it got temperature probe, so u can see four pins. Fuel pressure sensor is 3 pin, becouse no temperature pin.

    D12C, D12D and D13 sensors are interchangable. But D12D has crankcase sensor, that looks like oil pressure sensor, but designed for lower pressure. Do not fit it mistakally, it will fail when u start engine.
     
    Pablo-UA, Apr 18, 2015
    Pablo-UA, Apr 18, 2015
    #9
  12. Apr 19, 2015 #10
    benrab

    benrab Medium Load Member

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    Apr 5, 2015
    Quebec ,Canada
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    Pablo, about the oil pressure sensor if it can help (on North America market) the D12C and the first D12D (up to 2004) use the same oil pressure sensor (big sensor with 4 pins (expensive $275. +/- )
    In 2005 D12D comes with smaller Oil pressure sensor and cheaper price too.
    A easy way to know which sensor you need is:
    The first D12D 2002 used an electrical fuel priming pump up to 2004 and some 2005, after that the priming pump comes manual pump on the top of the fuel filter base.
    With the first version of D12D (with electric fuel priming pump) the oil temperature is sent by the oil pressure sensor but on later engine the harness is different and the oil temperature is combine with the oil level sensor in the oil pan.
    An engine with Electrical priming pump use the big oil pressure sensor and an engine with a hand priming pump use the little oil pressure sensor (same P/N as fuel pressure sensor)
    Also in the Volvo part system for the older engine the system give the two possibility for the oil pressure sensor ( a lot of misunderstanding at the parts dept about that)
    Ben
     
    benrab, Apr 19, 2015
    benrab, Apr 19, 2015
    #10
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