Question about 2000 Dodge Ram 1500 Truck

1 Answer

Sudden High and Low Oil Pressures

2000 1500 Dodge Ram, 5.2L Oil pressure has remained relatively close to mid range 40 psi on gage regardless of engine temp and engine rpm speed. However, after an oil and filter change using same product for several years (Castrol Synthetic 10w30 with Frame P16 Filter) during cold start oil pressure rises to mid range 40 psi, holds for a moment, and then jumps up into the high end of normal range. After 5 to 10 min warm up the pressure gradually drops back into mid range 40 psi. At speed, oil pressure again will rise to high end normal when heavy on the pedal than settles back close to mid range 40 psi and when slowing or coasting, pressure will fall significantly below the 40 psi mid range. Thinking I possibly had a defective oil filter I replaced the filter with a high end brand that resulted in no change of symptoms. Also noted there was little oil spillage as if there was a restriction of oil getting to the filter so I?m reluctant to think this a defective pressure sending unit. Could symptoms be the result of a restricted pick-up screen or deposits clogging oil passages or possible bad oil pump bypass valve?

Posted by on

  • ibdave50 May 29, 2009

    Thanks emissionwiz for possible solution. When I originally logged on for first time I mistakenly used 1998 Intrepid as header and is why the question was asked twice. Anyway, as for the stuck ball would flushing the oil system correct the problem?

  • yadayada
    yadayada May 11, 2010

    didn't I just answer this? check your email.

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Dodge Master
  • 76,848 Answers

Yes it might work if u flush it, give it a try

Posted on May 29, 2009

Ad

2 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
emissionwiz
  • 76848 Answers

SOURCE: Oil Pressure Suddenly Reading in High and Low Ranges

either the oil pressure sender is defective or the pressure relief ball valve in the oil pump is sticking, my money would be on the oil pump pressure relief valve ball sticking.

Posted on May 27, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Is there a fuse that works the oil pressure gauge and the battery gauge for a 2005 chevy trailblazer


NO , there is not a fuse just for those two thing's ! There are two power supply's for the whole insturment cluster . You could need a new cluster or the ECM isn't sending this info. to the cluster . Could have DTC'S - diagnostic trouble codes stored in the PCM or the insturment cluster . Without knowing how this works (insturment cluster gets it's info.) Your best bet , take it to a qualified repair shop that has the knowledge and test equipment to diagnose this problem.
Engine Oil Pressure Gage
The instrument panel cluster (IPC) displays the engine oil pressure as determined by the engine control module (ECM). The IPC receives a serial data message from the ECM indicating the engine oil pressure. The engine oil pressure gage defaults to 0 psi (0 kPa) or below if:
• The ECM detects a malfunction in the engine oil pressure sensor circuit.
• The IPC detects a loss of serial data communications with the ECM.
For the 4.2L LL8, the ECM uses an engine oil switch that is open when the oil pressure is normal and closed when the oil pressure is low. At normal pressure, the engine oil pressure gage will display 275 kPa (40 psi). At low pressure, the gage will go to 0 kPa and the low pressure warning will be displayed in the driver information center (DIC). At high pressure, the gage will display 551 kPa (80 psi). Any values between these three values are calculated values determined by the ECM.

Voltmeter
The instrument panel cluster (IPC) displays the vehicle voltage based on the information from the body control module (BCM). The IPC uses the serial data information from the BCM to provide a voltage level indication on the voltmeter.

DTC P0521: Engine Oil Pressure (EOP) Sensor Performance

DTC P0522 Engine Oil Pressure (EOP) Sensor Circuit Low Voltage
DTC P0523 Engine Oil Pressure (EOP) Sensor Circuit High Voltage

Volt Gage Inaccurate or Inoperative
2
Install a scan tool.
Turn the ignition ON, with the engine OFF.
With the scan tool, perform the instrument panel cluster (IPC) gauges output control.
Does the volt gauge move up and down when commanded?

Aug 12, 2017 | Cars & Trucks

1 Answer

What is the ac range pressure for a dodge ram 2500 07 6.7?


28-32 PSI low side, high side can go as high as 350 PSI depends on the heat load and humidity. The low side pressure is the important one.

Aug 17, 2016 | Dodge Cars & Trucks

1 Answer

I have a 02 dodge ram 1500 that have a rebuilt engine that the check gages comes on and oil pressure was low at a zero then accelerate the pressure went up to 40 then light goes off and checked oil level...


If you paid someone to rebuild the engine, you need to go back for warranty work. If you did the work, you need to put on mechanical gauge, and find out if the pressures is low or if your sending unit is not accurate.

Jul 09, 2014 | 1999 Jeep Grand Cherokee

1 Answer

98 expedition with dual air. pressures were 50 and 225 at idle at 90 - 95 deg outside. Compressor cycled and air got warm when driving. Added 12 OZ of freon. pressures went 60 and 250. added another can...


sounds like the expansion valve or the orfice may be clogged is your compressor making noise like a clinging inside if it isyou'l need to change the accumlator dryer as well as expansion or orfice along with the compressor. you could try what are the pressures with a fan in front of the vehicle if they go to 35-40 psi on low side and 200-250 psi on high side these are close to where they should be.

Jul 07, 2012 | 1998 Ford Expedition

1 Answer

I have a 04 dodge ram 1500 im trying to find out whats wrong with the oil pressure is aways low but the check gages does not come on


Measure your oil pressure with an external gauge. The transducer (sending unit) has high failure rate, you may not actually be running low pressure.....

Jul 19, 2011 | 2004 Dodge Ram 1500

1 Answer

What is normal oil pressure


40 psi after warm up is a good oil pressure. If it is getting below 20 psi, there could be some engine wear. This is my feelings and have seen oil pressures range up and down a lot.

Dec 29, 2010 | 2002 Chevrolet Silverado 1500HD

1 Answer

Why is oil gage reading 60? does this mean I need oil?


CHECK OIL PRESSURE FIRST.DEPENDS ON THE ENGINES SIZE JEEP OIL PRESSURE RANGES FROM 25 PSI TO 37 PSI.IF PRESSURE CHECKS OUT GOOD GAUGE COULD BE FAULTY.IF OIL PRESSURE IS STILL TOO HIGH.YOUR OIL TOO THICK.OIL RETURN HOLE STOPPED UP.OIL PUMP PRESSURE REGULATOR STUCK CLOSED.

Apr 11, 2010 | 2000 Jeep Grand Cherokee

1 Answer

Oil light is on


May be bad oil pressure sending unit. Best way to check is to connect a mechanical oil pressure guage to engine and check pressures when engine is warm. Should be no lower than 40 psi at idle when warm, no higher than 70 psi at 2000 rpm.

Dec 24, 2009 | 2004 Dodge Durango

1 Answer

Oil Pressure Suddenly Reading in High and Low Ranges


either the oil pressure sender is defective or the pressure relief ball valve in the oil pump is sticking, my money would be on the oil pump pressure relief valve ball sticking.

May 27, 2009 | 1998 Dodge Intrepid

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

406 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dodge Experts

yadayada
yadayada

Level 3 Expert

76848 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

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

Answer questions

Manuals & User Guides

Loading...