Oil pressure drop and engine dies 2003 Jeep Wrangler Rubicon

Asked by Nov 19, 2015 at 11:43 AM about the 2003 Jeep Wrangler Rubicon

Question type: Maintenance & Repair

I just got my Jeep back after a year in Divorce court. Supposedly it was not
driven in that time. It was running good a year ago. Regular matinence.  Upon
shipping my ex said it needed a new battery which he replaced. Upon delivery it
starts but while driving the oil pressure drops and the engine stalls. I replaced
the filter and changed the oil but it's still happening It also seems to run hot. for
just ideling. Could it be the oil pump? Or the screen in the oil pan?  Any help
would be appreciated. Thanks. Sharon.

6 Answers

8,130

It starts but wont idle? Or starts, idles a few seconds, and dies? That could be called Start / run / die. The pressure can drop because the engine slows and stops. Rather than the engine stops because the pressure drops. Engines will continue to run but light a light, or show "gauge" indicator "reading" to prompt the driver to shut it off. They would have to have added cut off switch for loss of pressure to cause dying. That's special added changes often used for fleets or RV's with multiple drivres who can pay no attention. If you experience start / run / die, you are not alone. These beauties are becomming famous. But there are several possible issues. some are hard to test or get them to exhibit. When this thing doest the S/R/D, can you count to like, 3 ? and spraying carb spray at the throttle body does not make it continue to run? That can mean the computer is for Anti Theft. Is the vehicle supposed to be Anti Theft? Is the original computer in it? You have to use a scan tool, or determine why it does not want to continue injector pulse, perhaps. Some have bad brains, some have CKP crank shaft position sensor issues. CAM sensor issues. fuel pump issues, and etc etc. even connector fit issues. This vehicle needs competent help, like the Jeep dealer. Guesses add up fast. dont recommend guessing. Aged sensors, harness issues, injector issues, ASD relay issues. You need a tech who can go through the no start tests, eliminate each step and that part, getting to the cause. I have heard many ideas and read many websites. The magic fix ? Three days or two weeks later the guy comes back on saying, its doing it again new this, new that. spent hundreds, still doing it. well? It is a Jeep. Let Jeep fix it. there is no one answer but it sounds like AntiTheft lockout, One lady wrote in saying her passenger doorlock would unlock it ? Dont know, your car should be able to give codes in the message center and blink a security or antitheft light. Seek real professional tech hands on repair, and make them say if their ideas are going to be effective and last. Dont authorize repairs without complete assurance backing up the validity. Having an extended warranty may still be possible? I dont know. But getting service manual to download online for purchase can speed up and simplify diag without money to pay to get it done by the jeep dealer. I would tow it there, leave it there, and not expect much. if you were pleasantly surprised? I would be surprised. Yours is a few years newer than the ones I thought I had forgotten. I fixed em, took some doin, and paying the bill was not a real priority for those I helped, dont be like them.

8,130

Theirs were an XJ and a ZJ they are not the same, service bulletins apply, different computers in different ones, Research can mean everything. You have absolutely no clue about the plethora of diverse uses of parts and systems jeep used, till you start trying to start one, and have to answer the info for look up and find the right info pertaining to the right parts on the right year, make, model, options. Then use only CROWN automotive parts to keep from causing other new problems, because of tolerances and changes updating them. Very important. The ones I worked on were straight 6 and each had several recalls and bulletins left undone and no maintenance, and the two went to the same synogogue, I think. The mistakes Jeep left in the manuals have to be corrected with manual updates too. Then high miles, exponentially adds additional no start, hard start, and start rub die causes.

8,130

These people had loose wires, and bad connections, damaged harnesses, wrong parts, filters plugged solid, worn out timing chains, Bad grounds, never was a ground problems, you name it. Non communicative brain dead computers, cracked coils, coolant corroded connections, shorted sensor harnesses, the list grew each day and numerous trips to gather service manual info, then find its a mistake, then find the update. One took over 30 days of being on crutches and in severe pain, just to get it goin and off the landlords property, using my own money. Then they refused to pay and I told them drag it away before I part it out. Yeah, let your dealer give you your testing and diag. the 2003 can be much simpler since the company transition had calmed down and the mistakes wont plague the manuals so badly.

60,655

Make sure of the oil pressure issue. Have it checked and if it is really low then the issue has to be addressed before driving it anymore. If you had a nasty divorce I would be concerned about sabotage so have a pro take a look at it before driving it anymore.

8,130

For a S/R/D situation, no tests can be run yet. The oil pressure tests at idle and 2K RPM would be after it stays running. they cannot drive it currently. i would consider a look at the pressure when it would run, after Anti Theft lockout, or Bootstrap issue with the computer was resolved. there were service bulletins all around the issues. You need a tech with experience after the research for a TJ.

8,130

Complete also, any safety recalls, the automatics had safety issue with cable. The fuel systems had safety issues and there may or may not still be any outstanding recalls on it. The dealer completes those before repairs or diagnosis. You can read about their fuel tank issues on NHTSA. Make sure your brake lights work.! The switch had the issue there, for the ones I worked on. It works, then stops working, when you check it, it starts working again. Recalled. The crash speed was an issue, they changed the rule instead of recalling that. How does that pertain to this YMM ? You can read up and decide on any course of your own.

Your Answer

Add photo

Related Questions

Wrangler

Looking for a Used Wrangler in your area?

CarGurus has 18,163 nationwide Wrangler listings starting at $2,950.

ZIP:

Search Jeep Wrangler Questions

Jeep Wrangler Experts

#1 Tom Demyan
Tom Demyan
Reputation 370
#2 tennisshoes
tennisshoes
Reputation 360
#3 Mathew Wooldridge
Mathew Wooldridge
Reputation 340
View All

Related Models For Sale

Used Jeep Grand Cherokee
1,026 Great Deals out of 74,887 listings starting at $750
Used Ford Mustang
472 Great Deals out of 45,735 listings starting at $1,999
Used Ford F-150
2,195 Great Deals out of 206,316 listings starting at $1,499
Used Toyota Tacoma
542 Great Deals out of 40,814 listings starting at $2,495
Used Chevrolet Silverado 1500
1,716 Great Deals out of 175,751 listings starting at $1,250
Used Chevrolet Camaro
226 Great Deals out of 30,943 listings starting at $1,217
Used Toyota 4Runner
252 Great Deals out of 20,494 listings starting at $1,800
Used Jeep Liberty
242 Great Deals out of 7,310 listings starting at $995
Used Chevrolet Corvette
120 Great Deals out of 20,753 listings starting at $3,000

Used Cars For Sale

2017 Jeep Wrangler Rubicon For Sale
657 listings starting at $26,780
2016 Jeep Wrangler Rubicon For Sale
215 listings starting at $29,895
2015 Jeep Wrangler Rubicon For Sale
107 listings starting at $25,800
2014 Jeep Wrangler Rubicon For Sale
4 Great Deals out of 122 listings starting at $19,965
2013 Jeep Wrangler Rubicon For Sale
5 Great Deals out of 139 listings starting at $18,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.