Page 7 of 7 FirstFirst ... 567
Results 61 to 67 of 67

Thread: Mirage 3A92 Engine repair in process. (Problem: low compression)

  1. #61
    Senior Member Fummins's Avatar
    Join Date
    Oct 2016
    Location
    Shed
    Country
    North Korea
    Posts
    6,000
    Thanks
    2,515
    Thanked 2,902 Times in 1,973 Posts
    Quote Originally Posted by mohammad View Post
    I am 99% sure this engine has an oil pressure sensor. its wiring is right next to the oil filter. The light looks like a gravy boat. When you change the oil filter you can see the light stay on for a couple of seconds. I dont think it has an oil temperature sensor and im not sure why you would want one. Its not like coolant there is no way for the engine to modify its oil temperature if it wanted to. It has no heat exchanger.
    Mechanic is right. I had to see if for myself though so plugged in the scanner to verify. I'm surprised they don't show actual pressure.

    The oil sending unit/sensor/switch is just a pressure switch and it can't actually read pressure or temperature. When it sees whatever amount of pressure the switch is designed to see it opens(probably), when it looses pressure it closes. Or the other way around.


        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage SE wussie cvt edition. 1.2 automatic: 37.7 mpg (US) ... 16.0 km/L ... 6.2 L/100 km ... 45.3 mpg (Imp)


  2. #62
    Senior Member
    Join Date
    Mar 2020
    Location
    WI
    Country
    United States
    Posts
    376
    Thanks
    0
    Thanked 40 Times in 36 Posts
    Fummins,
    . . . . Your first assumption is correct. When the oil pressure is above a certain value the switch will be open and the light is off. Below that value, the switch closes, and the light comes on. I don't know what it is for the Mirage but most vehicles are around 5-7 psi even though I have seen as little as 3. Of the course the engine is toast by the time the light comes on. That mounting point for the switch would be a good place to put a tee and install a pressure and temperature sensors. Well I found a job working for NAPA. Yeah!!!
    GOD Bless and Thanks,
    rich!

    Quote Originally Posted by Fummins View Post
    Mechanic is right. I had to see if for myself though so plugged in the scanner to verify. I'm surprised they don't show actual pressure.

    The oil sending unit/sensor/switch is just a pressure switch and it can't actually read pressure or temperature. When it sees whatever amount of pressure the switch is designed to see it opens(probably), when it looses pressure it closes. Or the other way around.
    2019 G4 Wine colored. 'Burgundy'
    130K miles, 37MPG average at 75-80 MPH with A/C and Lights
    I am on the second engine and trans! 4.5 months out of 18 in the shop!
    Not so happy any more!

  3. #63
    Senior Member
    Join Date
    Aug 2017
    Location
    SW, WI
    Country
    United States
    Posts
    4,999
    Thanks
    244
    Thanked 1,658 Times in 1,319 Posts
    Quote Originally Posted by Mechanic View Post
    Well I found a job working for NAPA. Yeah!!!
    GOD Bless and Thanks,
    rich!
    Congrats on the new job Rich!

    Hope employees get a discount on parts, too!

  4. The Following User Says Thank You to Mark For This Useful Post:

    CROSSBOLT (11-11-2021)

  5. #64
    Senior Member
    Join Date
    Mar 2020
    Location
    WI
    Country
    United States
    Posts
    376
    Thanks
    0
    Thanked 40 Times in 36 Posts
    Mark,
    . . . . Thanks! I start in the morning. I have a lunch date with my girl in 1.5 hours. How are you doing? I have 140K on Mirage. Have you seen these?
    https://www.carid.com/mitsubishi-mir...xoCzccQAvD_BwE
    GOD Bless and Thanks,
    rich!

    Quote Originally Posted by Mark View Post
    Congrats on the new job Rich!

    Hope employees get a discount on parts, too!
    2019 G4 Wine colored. 'Burgundy'
    130K miles, 37MPG average at 75-80 MPH with A/C and Lights
    I am on the second engine and trans! 4.5 months out of 18 in the shop!
    Not so happy any more!

  6. #65
    Senior Member
    Join Date
    Mar 2020
    Location
    WI
    Country
    United States
    Posts
    376
    Thanks
    0
    Thanked 40 Times in 36 Posts
    Mark and et al,
    . . . . After my first day at work in 21 years I am beat and in a whole lot of pain. My right knee is bothering me. I will have to move slower tomorrow. I pushed too hard today. I had a great time. It is nice to be able to work again! The route that I drove this morning is 58 miles one way. The route that I took home is 36 miles one way. But the speed limit is only 60 instead of 70 or 75. Also it is all two lane and a lot of vehicles are being driven at 45 to 55, Lots of passing. And there is a seven mile construction zone with about 3 miles of pavement missing. This area is 35 mph. So the time is just about the same. Of course I will be using 2 to 2.5 gallons each day instead of 3 to 3.5 gallons. That is a huge difference.
    GOD Bless and Thanks,
    rich!
    2019 G4 Wine colored. 'Burgundy'
    130K miles, 37MPG average at 75-80 MPH with A/C and Lights
    I am on the second engine and trans! 4.5 months out of 18 in the shop!
    Not so happy any more!

  7. The Following User Says Thank You to Mechanic For This Useful Post:

    CROSSBOLT (11-11-2021)

  8. #66
    Senior Member
    Join Date
    Aug 2017
    Location
    SW, WI
    Country
    United States
    Posts
    4,999
    Thanks
    244
    Thanked 1,658 Times in 1,319 Posts
    Quote Originally Posted by Mechanic View Post
    Mark and et al,
    . . . . After my first day at work in 21 years I am beat and in a whole lot of pain. My right knee is bothering me. I will have to move slower tomorrow. I pushed too hard today. I had a great time. It is nice to be able to work again! The route that I drove this morning is 58 miles one way. The route that I took home is 36 miles one way. But the speed limit is only 60 instead of 70 or 75. Also it is all two lane and a lot of vehicles are being driven at 45 to 55, Lots of passing. And there is a seven mile construction zone with about 3 miles of pavement missing. This area is 35 mph. So the time is just about the same. Of course I will be using 2 to 2.5 gallons each day instead of 3 to 3.5 gallons. That is a huge difference.
    GOD Bless and Thanks,
    rich!
    It's good to hear that you had a great first day on the job!

    Hopefully, the aches and pains will go away over time. When we get older, doing something new like that is felt afterwards! Ugh!

    Hang in there Rich!

  9. #67
    Senior Member
    Join Date
    Mar 2020
    Location
    WI
    Country
    United States
    Posts
    376
    Thanks
    0
    Thanked 40 Times in 36 Posts
    Mark,
    . . . . I am hoping and praying for the same thing. Yes, getting old is a real pain in the rear end. Hyundai in Brookshire which is about 35 miles away was looking for a parts driver but they weren't ready to hire someone. I am going to open that bridge back up and pray that I get it. This summer at NAPA is going to be very difficult because of the heat.
    GOD Bless and Goodnight,
    rich!


    2019 G4 Wine colored. 'Burgundy'
    130K miles, 37MPG average at 75-80 MPH with A/C and Lights
    I am on the second engine and trans! 4.5 months out of 18 in the shop!
    Not so happy any more!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •