Intermittent Oil Light - Oil Pressure Sensor?



ChryslerMiniVan.net is the premier Chrysler Minivan Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Page 1 of 4 1 2 3 ... LastLast
Results 1 to 10 of 37

Thread: Intermittent Oil Light - Oil Pressure Sensor?

  1. #1
    Join Date
    Aug 2007
    Location
    Detroit
    Posts
    65
    Thanks
    1
    Thanked 3 Times in 2 Posts


    Intermittent Oil Light - Oil Pressure Sensor?

    Wifey called today and said that the oil idiot light was coming on when she was on the brakes and/or turning. Went to a mechanic who said that the top end was sludgy and I had him do a flush. He got that done and it seemed to help for a while, but the light came back on later in the day. Took it back to him and he says that the oil pressure sensor/sending unit was leaking and that was likely the problem. Possibly shorting out the sensor.

    Anyone else believe that this could be the problem? What else could it be? Anyone seen this issue before? I did a search but all I could find was a discussion on synthetic v. non-synthetic oils.

    I would attempt a diagnosis myself but it's dern cold up here this week and I would rather pay a couple of bucks than work outside in sub-zero temps. Just want to make sure I'm not getting fleeced...
    - 2008 Town and Country Limited - 72k miles (ish)
    - 2004 Pontiac Vibe GT - 140k miles (ish)

  2. Remove Advertisements
    Chrysler Minivan Forums
    Advertisements
     

  3. #2
    Join Date
    Oct 2008
    Location
    Arizona, USA, and Elsewhere
    Posts
    3,508
    Country: Users Country Flag
    Thanks
    14
    Thanked 10 Times in 10 Posts


    Lightbulb

    Chrysler/Dodge oil sensors are notorious for leaking ......
    It's cheap insurance to replace it.

    If you want, you can change your cluster (gauges) and have the one with the oil pressure gauge (different sensor). OR install an auxiliary pressure gauge somewhere, even if it's under the hood.
    1990 Plymouth Grand Voyager LE 3.3L LWB-- 222,222 miles and counting ......
    Still Going Strong


  4. #3
    Join Date
    Aug 2007
    Location
    Detroit
    Posts
    65
    Thanks
    1
    Thanked 3 Times in 2 Posts


    Leaking, yes... but shorting due to leak? And only at idle/when turning? That seems odd to me the more I think about it.
    - 2008 Town and Country Limited - 72k miles (ish)
    - 2004 Pontiac Vibe GT - 140k miles (ish)

  5. #4
    Join Date
    Oct 2008
    Location
    Arizona, USA, and Elsewhere
    Posts
    3,508
    Country: Users Country Flag
    Thanks
    14
    Thanked 10 Times in 10 Posts


    Quote Originally Posted by SomeYahoo View Post
    Leaking, yes... but shorting due to leak? And only at idle/when turning? That seems odd to me the more I think about it.
    At idle and turning, sounds more like "low oil level". Have you checked the dipstick for OIL, lately?

    Replace the sensor, and check the dipstick for oil ?
    Sounds like you're 4 quarts low .......
    1990 Plymouth Grand Voyager LE 3.3L LWB-- 222,222 miles and counting ......
    Still Going Strong


  6. #5
    Join Date
    Aug 2007
    Location
    Detroit
    Posts
    65
    Thanks
    1
    Thanked 3 Times in 2 Posts


    Quote Originally Posted by AzTraveller View Post
    At idle and turning, sounds more like "low oil level". Have you checked the dipstick for OIL, lately?

    Replace the sensor, and check the dipstick for oil ?
    Sounds like you're 4 quarts low .......
    That's what I thought when I had her go to the mechanic/oil change place, but he did a full oil change and (obviously) topped it off. Still have the issue...
    - 2008 Town and Country Limited - 72k miles (ish)
    - 2004 Pontiac Vibe GT - 140k miles (ish)

  7. #6
    Join Date
    Oct 2008
    Location
    Arizona, USA, and Elsewhere
    Posts
    3,508
    Country: Users Country Flag
    Thanks
    14
    Thanked 10 Times in 10 Posts


    Quote Originally Posted by SomeYahoo View Post
    That's what I thought when I had her go to the mechanic/oil change place, but he did a full oil change and (obviously) topped it off. Still have the issue...
    Yes, but DID YOU Check the level ?

    And if you say "Jiffy Lube", we'll ALL SCREAM at you. Too many members have had horror stories and lost engines, by going to "Jiffy Lube".

    PLEASE check your OIL level. Get the sensor replaced.
    Can't say it any simpler.
    1990 Plymouth Grand Voyager LE 3.3L LWB-- 222,222 miles and counting ......
    Still Going Strong


  8. #7
    Join Date
    Aug 2007
    Location
    Detroit
    Posts
    65
    Thanks
    1
    Thanked 3 Times in 2 Posts


    Quote Originally Posted by AzTraveller View Post
    Yes, but DID YOU Check the level ?

    And if you say "Jiffy Lube", we'll ALL SCREAM at you. Too many members have had horror stories and lost engines, by going to "Jiffy Lube".

    PLEASE check your OIL level. Get the sensor replaced.
    Can't say it any simpler.
    Wow... that post doesn't match your "mood" (mellow).

    I'm not at the van now, but I will check as soon as I get home. The flush/change was performed by and ASE certified mechanic (ex-dealer guy) at an independent shop that I trust. That said, I will check it as soon as I get home and report back.

    Is the sensor an easy swap (read: 15 min or less)? I can brave the temps for that long if it'll fix the issue...
    - 2008 Town and Country Limited - 72k miles (ish)
    - 2004 Pontiac Vibe GT - 140k miles (ish)

  9. #8
    Join Date
    Apr 2007
    Location
    Southwest
    Posts
    4,392
    Country: Users Country Flag
    Thanks
    97
    Thanked 347 Times in 296 Posts


    Regardless of what the mechanic said, the sender is a common and cheap part to change in this situation. It's the cheapest part in the system. That said, the only way to know if you have an indication problem vs an oil starvation problem is to remove the sensor and connect a direct reading oil pressure gauge in it's place. This will tell you the true pressure in the system. If it then reads the correct pressure you start with a new sender. If it reads low then you have a bad pump or an oil channel or galley is blocked internal to the engine. It's a simple system with few options to repair.

    BTW - Why did the mechanic do a flush? Did he pull the valve covers and see the sludge or just surmise there was sludge. Flushes are a risky proposition.
    Last edited by RIP; 01-14-2009 at 02:35 PM.
    ******** We took the time to answer your post. Please give us some time and post the fix. You'll help hundreds. ********

    **** Follow all prescribed safety procedures before attempting any repairs. If in doubt, refer to a maintenance manual. ****

    96 Gr Caravan LE 3.8, 208K miles
    07 Fusion / 06 RAV 4 / 06 Accord / 94 Camry

  10. #9
    Join Date
    Oct 2008
    Location
    Arizona, USA, and Elsewhere
    Posts
    3,508
    Country: Users Country Flag
    Thanks
    14
    Thanked 10 Times in 10 Posts


    Cool

    Quote Originally Posted by RIP View Post
    Regardless of what the mechanic said, the sender is a common and cheap part to change in this situation. It's the cheapest part in the system. That said, the only way to know if you have an indication problem vs an oil starvation problem is to remove the sensor and connect a direct reading oil pressure gauge in it's place. This will tell you the true pressure in the system. If it then reads the correct pressure you start with a new sender. If it reads low then you have a bad pump or an oil channel or galley is blocked internal to the engine. It's not rocket science.

    BTW - Why did the mechanic do a flush? Did he pull the valve covers and see the sludge or just surmise there was sludge. Flushes are a risky proposition.
    Thanks RIP,may wish to expound on the "risky part"
    1990 Plymouth Grand Voyager LE 3.3L LWB-- 222,222 miles and counting ......
    Still Going Strong


  11. #10
    Join Date
    Aug 2007
    Location
    Detroit
    Posts
    65
    Thanks
    1
    Thanked 3 Times in 2 Posts


    Okay... I'm going to brave the temps (have to snow blow anyway) and swap out the switch tonight. Looks easy enough, and like you all have said, it's cheap insurance.

    I'll report back.
    - 2008 Town and Country Limited - 72k miles (ish)
    - 2004 Pontiac Vibe GT - 140k miles (ish)

+ Reply to Thread

Similar Threads

  1. A/C pressure sensor
    By dgtc in forum 4th. Generation Chrysler Minivans: 2001-2007
    Replies: 1
    Last Post: 05-09-2010, 11:12 PM
  2. Tire Pressure Monitoring Sensor Compatibility
    By rojpon74 in forum 4th. Generation Chrysler Minivans: 2001-2007
    Replies: 11
    Last Post: 12-12-2009, 01:29 AM
  3. Intermittent air bag light
    By Uncle Scrooge in forum 4th. Generation Chrysler Minivans: 2001-2007
    Replies: 2
    Last Post: 01-24-2008, 06:55 AM
  4. broken oil pressure sensor
    By jetta_driver in forum 3rd Generation Chrysler Minivans: 1996-2000
    Replies: 5
    Last Post: 01-24-2008, 12:47 AM

Bookmarks

Posting Permissions

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