How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Robert Your Own Question

Robert
Robert, Technician
Category: Car
Satisfied Customers: 7937
Experience:  6 years experience with car repair.
3862310
Type Your Car Question Here...
Robert is online now
A new question is answered every 9 seconds

No Comment Added

Resolved Question:

No Comment Added
Submitted: 6 years ago.
Category: Car
Expert:  Robert replied 6 years ago.

Hi There!

What Is the Year, Make and Model?

Did your check engine light come on?

Thanks.

Customer: replied 6 years ago.
Reply to gmplus's Post: no just the check gage lite did not start knocking or rough running
Expert:  Robert replied 6 years ago.

OK

What is the Year, Make and Model?

Thank you.

Customer: replied 6 years ago.
1998 Dodge Ram 1500 pick up 5.0 Liter or 318
Expert:  Robert replied 6 years ago.

OK

SO the gauge is not registering at all?

Thanks.

Customer: replied 6 years ago.
Reply to gmplus's Post: no there is no movement at all I even tried shuttung down the truck and restarting it a couple of times but still nothing
Expert:  Robert replied 6 years ago.

OK

Normally a bad sending unit could cause this issue however they will usually still read incorrectly. I would at this point have a mechanical oil gauge installed.If the mechanical oil pressure gauge confirms that you do have a low oil pressure problem the oil pan will have to be removed to inspect the oil pump and possibly the engine bearings. I would suspect a bad gauge, but having the system pressure tested would be a good idea.

Thank You! Please hit ACCEPT for my efforts, Positive feedback and BONUS welcomed!

Customer: replied 6 years ago.
Reply to gmplus's Post: where is the location of the oil sending unit and how would i go about installing the mechanical oil pressure gauge?
Expert:  Robert replied 6 years ago.

OK

I do have some information.

These sensors are mounted on the engine and are controlled by the oil pressure. When the pressure is high, the switch is held in the off or open position allowing no current to flow to the oil pressure warning lamp on the instrument panel. When the oil pressure switch is in the low, on or open position, current is permitted to flow to the oil pressure switch warning lamp. This will cause the light to illuminate telling you that oil is needed immediately. You should always keep a quart of oil in your vehicle at all times in case of such an emergency.

 

TESTING

See Figure 4

When a problem occurs with an oil pressure gauge, examine the sensor (sending unit) and its wiring.

  1. Check the sending unit and wiring by grounding the connector leads at the sending unit.

  2. With the ignition ON, a grounded gauge will cause the oil pressure light to come on, or if equipped, the oil pressure gauge to read at or above maximum.

Click image to see an enlarged view
Fig. 4: A common oil pressure sensor connector

 

  1. If the gauge does read at or above maximum, it is still operating.

 

REMOVAL & INSTALLATION

  1. Disconnect the negative battery cable.

  2. Disconnect the terminal ends on the unit.

  3. Spray lubricant on the unit, to ensure an easy removal.

  4. With a suitable open-end wrench or a socket, unscrew the sending unit.

To install:

  1. Make sure area is clean before replacing the sensor. Scrape any remaining gasket material that may be left behind. Use a wire brush or a gasket scraper.

  2. Lube the threads with oil on the new sensor and place the O-ring or gasket on the end going into the engine. Carefully thread the sensor by hand, making sure the threads are even, and you are not forcing the sensor into the block. Using a tool, tighten sensor but not to tight as it could break easily.

  3. Connect the wires on the sensor.

  4. Connect the negative battery cable.

  5. Start engine and look for any leaks in case the sensor is not tight enough.

Thank YoU Please hit ACCEPT for my efforts, Positive feedback and Bonus welcomed!

Customer: replied 6 years ago.
what about the mechanical oil gauge....how do i install it?
Expert:  Robert replied 6 years ago.

OK

Sorry for the delay, wanted to get you the correct specs for testing.

ENGINE OIL PRESSURE

  1. Remove oil pressure sending unit.
  2. Install Oil Pressure Line and Gauge Tool C-3292. Start engine and record pressure. Refer to Oil Pressure in Engine Specifications for the proper pressures.
OIL PRESSURE

Curb Idle (Min.*)41.4 kPa (6 psi)
3000 rpm207 - 552 kPa (30 - 80 psi)
Oil Pressure Bypass Valve Setting62 - 103 kPa (9 - 15 psi)
Switch Actuating Pressure34.5 - 48.3 kPa (5 - 7 psi)

Thank You! Please hit ACCEPT for my efforts, Positive feedback and BONUS welcomed!
Robert, Technician
Category: Car
Satisfied Customers: 7937
Experience: 6 years experience with car repair.
Robert and 3 other Car Specialists are ready to help you

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
< Last | Next >
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
  • used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future. David L. Richmond, TX
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil Marysville, CA
  • Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible. Charles Walnut Creek, CA
  • As a single woman, I really appreciate an excellent and affordable opinion.
    Thank you Geordie, I will not hesitate to contact justanswer in the future!
    Sue Charleston, WV
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff. Jim Castleberry, FL
  • Excellent reply, and also very quick. Really sounds like the Expert knows what he is talking about. I will be back to use your service when I need more help with my RV. Dutch USA
 
 
 

Meet The Experts:

 
 
 
  • Chris (aka-Moose)

    Technician

    Satisfied Customers:

    846
    16 years of experience
< Last | Next >
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris (aka-Moose)'s Avatar

    Chris (aka-Moose)

    Technician

    Satisfied Customers:

    846
    16 years of experience
  • http://ww2.justanswer.com/uploads/TE/TedG/2012-6-15_14759_avaLarge.64x64.jpg Ted G.'s Avatar

    Ted G.

    ASE Certified Technician

    Satisfied Customers:

    1596
    20 years auto repair experience, ASE Master Tech, Mechanical Failure consultant, Expert Witness
  • http://ww2.justanswer.com/uploads/joecamel90/2008-11-13_03615_head_shot.jpg George H.'s Avatar

    George H.

    ASE Certified Technician

    Satisfied Customers:

    1311
    ASE Master Tech 15+ yrs, AAS Automotive Technology, Factory trained Asian specialist
  • http://ww2.justanswer.com/uploads/AM/amedee/2013-10-24_23656_Amedee1.64x64.jpg Amedee's Avatar

    Amedee

    ASE Master Tech

    Satisfied Customers:

    2367
    ASE Master Tech advanced level specialist
  • http://ww2.justanswer.com/uploads/SU/supermechanic/2013-8-23_03546_500.64x64.jpg Jerry's Avatar

    Jerry

    Master Mechanic

    Satisfied Customers:

    1906
    ASE master, 30+ years. All makes and models. Trouble shooter, shop forman, service manager
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    ASE Certified Technician

    Satisfied Customers:

    942
    12 years Ford Lincoln/Mercury Jaguar dealership as a technician and shop foreman reparing all makes
  • http://ww2.justanswer.com/uploads/ST/Steve7654/2012-6-5_215929_japic800x660.64x64.jpg Steve's Avatar

    Steve

    Auto Service Technician

    Satisfied Customers:

    1980
    25+ yrs experience as a professional working technician; ASE L1 master technician