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2004-2007 Cadillac CTS-V General Discussion Discussion, Real High Oil Temperatures on Maggied V in Cadillac CTS-V Series Forum - 2004 - 2007; Originally Posted by OneFast V ... I pulled the dipstick to check the oil level and smoke came out! ... ...
  1. #16
    rand49er's Avatar
    rand49er is offline Cadillac Owners 10000+ Posts
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    Re: Real High Oil Temperatures on Maggied V

    Quote Originally Posted by OneFast V View Post
    ... I pulled the dipstick to check the oil level and smoke came out! ...
    In the olden days, before PVC valves, cars had breather tubes sticking out the bottom of the motor. They vented blowby gases from the crankcase. They also dripped oil, and roads always had darkened areas down the middle of the road. Take a look next time you see some movie footage of a highway from the '50s. That smoke is undoubtedly just your everyday blowby gas.


    Quote Originally Posted by darkman View Post
    "80 deg F" - must have a bloody cold front up there. That is a night time low down south.
    Spectacular weather up here right now. Green and lush, too. Mosquitos? Yup, we got plenty. You can have that 100 deg/90% humidity sauna in SE Texas or that dessicated 115 deg pizza oven crap SW of there. I'll take this any day.
    '05 CTS-V, Maggie, Kooks, Hotchkis, Ground Control, Corsa, B&M, DSS/Hendrix, Full 3M Clear Bra, Autovation, V Headrests, CTS Console, STS-V 55w Fogs, Black Vette FRCs, Specter Werkes, Katech LS9 Clutch, SS Brake Lines, Heavymetals U-Turn Fuel Line Eliminator, Momo Combat Evo Shift Knob, Wldwhl Clear Sidemarkers, Linea Corse LC855 Wheels or OEM wheels w/'06-'07 Center Caps, plus a couple more. 472 RWHP/411 RWTQ (Mustang Dyno).

  2. #17
    OneFast V is offline Cadillac Owners Enthusiast
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    Re: Real High Oil Temperatures on Maggied V

    When i look in front of my heat exchanger and radiator there is another smaller cooler that is maybe 4in. x 12in. mounted perpendicular to the other two, i just assumed that was an oil cooler?

  3. #18
    darkman's Avatar
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    Re: Real High Oil Temperatures on Maggied V

    That is the power steering fluid cooler.

  4. #19
    OneFast V is offline Cadillac Owners Enthusiast
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    Re: Real High Oil Temperatures on Maggied V

    well it appears i still have a ground issue, specifically when the car is running the temperature reads all over the place. When i turn it off but keep it in accessory mode it read about 206-210 after a bit of driving. What would change the ground potentials with the car running versus not?

  5. #20
    kevm14 is offline Cadillac Owners Connoisseur
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    Re: Real High Oil Temperatures on Maggied V

    Voltage drop from much more current going through those ground connections. Clean the connection at the back of the pass side head.

  6. #21
    OneFast V is offline Cadillac Owners Enthusiast
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    Re: Real High Oil Temperatures on Maggied V

    i've cleaned it several times and put the star washer on it too .

  7. #22
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    Re: Real High Oil Temperatures on Maggied V

    Quote Originally Posted by OneFast V View Post
    i've cleaned it several times and put the star washer on it too .
    You say you have cleaned "it." As I read the "sticky" and other threads on this subject there is more than one ground that can influence this condition. The first is the negative post of the battery; another is the ground strap to the motor; another is the one just under the hood support stick; and then there are those on the back of both heads.

  8. #23
    OneFast V is offline Cadillac Owners Enthusiast
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    Re: Real High Oil Temperatures on Maggied V

    i will have to check the other grounding points, i was however reading about 40mv between the ground near the hood support and negative battery after i cleaned it and added a star washer. Next thing will be to check the ground to the motor.

  9. #24
    OneFast V is offline Cadillac Owners Enthusiast
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    Re: Real High Oil Temperatures on Maggied V

    Tried to get at the grounding strap on the block, what a bitch! I decided it would be easier to splice off the ground wire from the oil temp sensor itself and it seems to be working, after some spirited driving the oil temp never went over 230F. It did however jump really quickly when I turned of the car and started it again up to about 300F but within a minute had settled in to around 226-230F

    I still have a certain smell coming from the engine bay after extended drives, but I believe it to be something else separate i will have to figure out.

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