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On my cadillac cts 2003 the oil pressure low came on after my car kept pulling back as i drove it, than i couldnt pump the gas and had to turn the engine off. I dont know if its because i put a type of gas it doesnt take or some other reason?

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  • 214 Answers

Check the oil level in the engine. If it's low then add some oil. If oil level on the dipstick is between full and low then you better have a mechanic look at it, could failed oil pump.

Posted on May 09, 2014


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Posted on Jan 02, 2017

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SOURCE: low oil pressure on 96 toyota 2200cc engine

The oil pump can be changed without pulling the engine.

The impressive looking thing is the balance shaft assembly. These counter-rotating shafts balance out the inherent vibration of the engine. You can remove it, as long as you do not disrupt the gear placements relationship to each other. The balance assembly is set to a specific point.

Posted on Jan 13, 2009

  • 6784 Answers

SOURCE: low oil pressure, stop car on 2001 cadillac seville

HI. this could be a faulty sensor or a bad oil pump screen as well. the oil pump malfunction is the worst scenario in this case. You can actually test the sensor with a voltage needle to see if its getting the proper voltage. i would inspect the wires that are attached to the sensor as well. if the wires are good and the current level is ok as well, it will most likely be a faulty oil pump or bad oil pump screen as well.

In this case, i would recommend inspecting the oil pump assembly. here is a inspection guide below that will help you confirm oil pump failure.


  1. Clean the oil pump components with non-corrosive solvent.
  2. Dry the oil pump components with compressed air.
  3. Inspect the housing and the cover for cracks, scoring, casting imperfections and damaged threads.
  4. Inspect the gerotor gears for chipping, galling or wear.
  5. Inspect the pressure relief valve for embedded particles and/or damage.

The internal parts of the oil pump are not serviced separately. If wear or damage is noted, replace the entire pump assembly.

Please rate and have a great day:)


Posted on Apr 24, 2009

  • 2007 Answers

SOURCE: My 2003 g35 infiniti won't start oil low

I really doubt if your motor siezed up while sitting there. But your battery could have gone dead, or your stater may have locked up, or a battery cable is loose or dirty.

Posted on May 20, 2009

  • 4521 Answers

SOURCE: 2007 Ford expedition won't start

ur oil pump may be failin-there r sensors everywhere on new cars-keepin u from starting as safety measure-computer systems r complex n things dont always show on 1 scan-they kinda hav the mindset of a pc

Posted on Sep 15, 2009

Testimonial: "Thank you. I have spoken with 2 other mechanics who said the same thing regarding the oil pump. It's being looked at. So I'll post more once I know"

  • 1 Answer

SOURCE: 2003 cadillac cts

cam shaft sensor is bad. Cost me about $300 to fix.

Posted on Sep 30, 2009

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My 2005 Cadillac CTS ran out of gas the other day. I filled the tank about half way. Now my car will crank but won't start. What do you think can be the problem?

I think you damaged the fuel pump by letting it run dry. It needs gas to keep it cool. But check fuel pressure. If you have low or no fuel pressure, you'll need a new pump. Figure around $800...pretty high price to pay for letting it run low on gas

Aug 03, 2017 | Cadillac Cars & Trucks

1 Answer

I drove my dodge Durango to day and when I got home I turn it off got out ,got back in to crank it up and it just kept turning over it never did cauth why

Remove the gas-cap, to ventilate the gas tank,
to equalize the air-pressure inside/outside the tank.
Too-low air pressure means that the fuel-pump cannot send any gasoline to the engine.

Jan 04, 2015 | 2003 Dodge Durango

1 Answer

Replace fuel injector cadillac cts 3.6

First off..Do you have the High Pressure direct injection 3.6 LLT engine or basic 3.6 Engine ? Yes the upper Plenium has to come off, but you will have to probably pull your wipers off, and the 7mm screws that hold the cowl beauty panel on and then there is enough cleareance to remove the plenium, disconnect throttle body snorkel tube at throttle body, remove 10mm bolt at brkt drivers side of throttlebody (ball stud) if I remember right, then there are 13mm bolts at back besides the obvious ones you can see and carefully lift it up off engine, thenyou can get to rails for the injectors, to bleed off 3.6 low pressure fuel system pull fuel pump fuse in trunk fuse box and start it let it run out of gas, then bleed Schrader valve too on rail, if you have a high pressure direct injection llt engine let me know, will describe procedure to you

Apr 09, 2013 | 2006 Cadillac CTS

1 Answer

How to troubleshoot engine oil low pressure

if the engine is not making noise then more times then others its just a bad pressure sensor

Aug 30, 2012 | 2003 Cadillac CTS

1 Answer

My 2003 cts "low oil

The warning unit may not be working, therefore it won't errase the light. You may be able to reset it by taking the hot side post off for a minute or two.

Feb 18, 2011 | Cadillac CTS Coupe Cars & Trucks

1 Answer

I have 55,688 miles on my 2003 CTS. The low oil pressure/stop engin warning light comes on after I have been driving for 20 minutes or so only when car is idling at stop signs. The oil registers full and...

The oil pump could be bad, or going bad. Oil pressure is effected by wear on the crankshaft main bearings and camshaft/s bearings. If those bearings are bad, that would make it lose oil pressure, but I wouldn't think it's time for a new motor at that mileage!!! I would find out what the actual oil pressure is, using a "wet gauge" or oil pressure gauge. The oil pressure sending could also be bad, giving false readings.

Oct 20, 2010 | 2003 Cadillac CTS

1 Answer

Will not start when hot. starter makes no different types of noise.

hello. perhaps I can assist you.

Perform this test:

Fuel pump test:

1. Get yourself a helper.

2. remove the gas cap.

3. have one person listen in the gas tank at the gas cap opening.

4. have the other person turn the ignition switch to the ON position ONLY so as the dash lights come on. Do NOT attempt to start the engine.

5. As soon as the ignition key is turned to the ON position, The person at the gas tank should hear the fuel pump run for TWO SECONDS and then it should STOP.

6. Does it ?.

If you do NOT hear it run, in most cases the fault is the fuel pump relay or the fuel pump..

As soon as you turn ON the ignition switch to start the engine a 2 second ONLY battery voltage signal is sent from the computer to the fuel pump relay and from the relay back to the fuel pump in the fuel tank. This runs the fuel pump for ONLY 2 seconds of which pressurizes the fuel system in preparation to start the engine.

Once the engine starts, The computer BYPASSES the fuel pump relay and sends constant contionous battery voltage from the computer to the oil pressure switch of which is now CLOSED because the oil pressure is UP because the engine is running. Therefore the battery voltage flows thru the oil pressure switch back to the fuel pump to run the fuel pump constantly until you turn OFF the engine.

Oct 01, 2009 | 2003 Cadillac CTS

1 Answer

2003 Cadillac CTS V6

the sensor is wearing out, that causes the gas not to back flow, or you need a new gas cap(pressurized). I would get a GM gas cap, because the after markets aren't that reliable for your car.

Sep 05, 2009 | 2003 Cadillac CTS

3 Answers

2003 cts has oil leak at rear left side of left hand cylinder bank it drips on exhaust causing smell and smoke also saturated O2 sensor and turned on engine light dificult to get to or even see

ok, woodhujr,if im not mistaken you had another help request of cranckcase pressure...that problem is causing your leak.
ccny, i have no idea what you are talking about, feel free to enlighten us...
Howard, the best advise i have for you in replacing the valve cover gasket(s) is to get a repair manual for this car/engine and follow the steps as outlined there. I couldnt try to give you step by step instructions in this little box without way oversimplifying.

Jan 06, 2009 | 2003 Cadillac CTS

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