Question about Daewoo Leganza

1 Answer

02 jeep grand cherokee 4.7 eng

Cust states oil pressure drops at idle check of system shows sendering unit leaking after replacing oil sending unit oil pressure now holds at idle but drops as you increase rpms wiring diagram only shows wiring to computer not directly to gauge

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Sergeant:

    An expert that hasĀ over 500 points.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

  • Expert
  • 170 Answers

Hook up a manifold gauge (mechanical temporary use gauge, used by mechanics) and test the oil pressure. You probably need to replace the gauge. The computer sends info through a printed circuit board behind gauge cluster and sometimes you have to replace the whole gauge cluster.

Posted on Feb 06, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

99 jeep grand cherokee 4.7 v8 oil pressure drops from 40 at idle to 0 when given rpms. Will come right back to 40 when you let idle again. I have removed pan and checked screen. It was clean. Original...


From what you just said, it sounds like the problem may be the dash gauge itself. I have only seen one oil pump act like that (mine) .... in that case the pump drive gear was turning on the shaft and slowing down as rpm increased but that is so rare as to be a non issue, especially when the mechanical gauge reads fine. I'd either replace the dash gauge or just install the mechanical gauge permanently on the dash. Doubt if oil in the plug will do that but you can check the plug, clean it and check the integrity of the wires going into it just to be sure.

Dec 14, 2010 | Jeep Grand Cherokee Cars & Trucks

2 Answers

2001 jeep grand cherokee 4.7 v8. my oil pressure drops to 0 when sitting at a stop light but fine when i am driving


Check the type of oil you are using as it clogs the pin in the oil poressure sender unit.

Nov 21, 2010 | 2001 Jeep Grand Cherokee

2 Answers

99 jeep grand cherokee oil pressure gauge drop


check the oil descending unit or ur oil pump might b clogged up with soot, just some advice hope it works

Jan 12, 2010 | 1999 Jeep Grand Cherokee

1 Answer

Where is the oil pressure sending unit located on a 2000 jeep grand cherokee 4.0 liter


Removal & Installation
  1. Disconnect the negative cable from the battery.
  2. Raise vehicle on hoist.
  3. Remove front splash shield.
  4. Disconnect oil pressure sender connector (4).
  5. Remove the pressure sender (2).
6eaedba.gif
Oil pressure sending unit


To install:
  1. Install oil pressure sender.
  2. Connect oil pressure sender wire.
  3. Install front splash shield.
  4. Lower vehicle.
  5. Connect the negative battery cable.

Jan 12, 2010 | 2000 Jeep Grand Cherokee

1 Answer

99 jeep grand cherokee 4.7 v8 oil pressure drops from 40 at idle to 0 when given rpms. Will come right back to 40 when you let idle again. I have removed pan and checked screen. It was clean. Original...


Oil gauge may be bad, you said you changed the oil sending unit, and tried a aftermarket which worked, so the other option is to have you oil gauge checked. The sending unit may be good but you gauge is not reading proper.

Jan 11, 2010 | 1999 Jeep Grand Cherokee

2 Answers

I have a 99 Jeep Grand Cherokee 4.7 oil pressure reads 40 at idle and drops to 0 when given rpms. Pull pan screen was clean. Noticed oil sending unit was leaking, I replaced it. I still have the same...


I just had the same problem with a malfunctioning gauge with a very oily sending unit. I went to Oreilly's auto and got a replacement sending unit for $38 and put it in and got the same results you did. I would have 40 psi at idle and it would drop to zero and throw the check gauges light when giving it throttle. I found some posts online that stated to only use official mopar sending units in these vehicles so I gave that a try. Problem solved!!! I now have 45-50 psi at idle and it climbs slightly when under throttle. The sending unit from Chrysler is around $52.

Jan 11, 2010 | 1999 Jeep Grand Cherokee

1 Answer

02 cherokee losing oil pressure when accelerating, fine at idle.


Was the sending unit an aftermarket part?We like to install the original part back into most vehicle, but because of people price shopping, this can cause some issues. If the switch is working properly, the gauge should rise as the engine RPM's increase as you stated. With the key on and the engine off, disconnect the sending unit wire and ground it. The gauge should go to the highest reading, and that checks the wire, and the gauge. I suspect that the sending unit is failed or not the proper one for your vehicle.

Jan 07, 2010 | 2002 Jeep Grand Cherokee

1 Answer

Where is the oil sending unit switch located on a 2003 4.0L jeep grand cherokee?



Removal & Installation

  1. Disconnect the negative cable from the battery.
  2. Raise vehicle on hoist.
  3. Remove front splash shield.
  4. Disconnect oil pressure sender connector (4).
  5. Remove the pressure sender (2).
7f7455b.jpg
To install:
  1. Install oil pressure sender.
  2. Connect oil pressure sender wire.
  3. Install front splash shield.
  4. Lower vehicle.
  5. Connect the negative battery cable.

Oct 08, 2009 | 2004 Jeep Grand Cherokee

2 Answers

2001 Jeep Oil Pressure


Last week my 2001 Grand Cherokee with a 4.7 was dropping below 10 and my "check gauges" light and chime came on. My sending unit was bad. I could see it was bad because oil was getting through the unit and leaking very slow. It's located above the oil filter. Easy fix, but the unit was over $50 and the 1 1/16 special deep socket for sending units was over $10.

Oct 07, 2009 | 2001 Jeep Grand Cherokee

1 Answer

Low oil pressure


the first i would do is to see if the oil sending unit is ok and if you gage is working right and if they are then checkout the oil pump.

Feb 14, 2009 | 2001 Jeep Grand Cherokee

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

403 people viewed this question

Ask a Question

Usually answered in minutes!

Top Daewoo Experts

Colin Stickland
Colin Stickland

Level 3 Expert

21927 Answers

yadayada
yadayada

Level 3 Expert

60541 Answers

Steve Hurc
Steve Hurc

Level 3 Expert

450 Answers

Are you a Daewoo Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...