Question about 1983 Cadillac Eldorado

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What happens to the car when your oil pump is going out?

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That car has a low oil pressure fuel cut out the car will stall and eventually not run at all

Posted on Aug 03, 2010


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Why is oil light flashing?

Petrolheads (applies to dieselheads as well) often joke that the oil pressure warning light fitted to cars is really a "your engine has just gone BANG" light - it's set at such low pressure that it's no warning at all, just a sign that failure has already happened.

It'll need a major investigation and only then can you assess whether it should have been predicted during service. Espesially if you hear friction noises or metallic scraping. You want to figure this out now before it comes on solid.

You could check the serpentine belt for tension.
To my knowledge the oil pump isd hooked up at the alternator.
Is the battery voltage normal at running engine (14.x volts) ?
Maybe the oil pump is not pumping right so you may have enough oil but it isn't pumped around enough.
Was the engine temperature going up when it happened?

Also was the car going down in RPM's?
What is it idleing at?
If she is idleing low try cleaning out the IAC
The iac is a small sensor that sit's on top of the engine at the back just a little left of where the accordian hose hooks to the throttle body from the air cleaner. It has a electrical connector coming from it and should be found close to the intake where the flapper valve is. (after the MAF)

If the RPM are at factory spec try replacing the oil sending unit. IF that is not it your engine is just worn

If you need further help, I’m available over the phone at

Feb 11, 2016 | 2005 Hyundai Sonata 2.4

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1999 mpv mazda,oil light blinking,just put a new oil switch,open cap see oill pumping up at cam

Sounds like oil pump is weak. Did you happen to run it low on oil? Regardless, I suspect oil pump is going bad and should be replaced in very near future.

Mar 24, 2011 | 1999 Mazda MPV

1 Answer

Just replaced the timing belt,water pump when you first start car it has a miss but it goes away in about 45 seconds then it runs fine but engine light is on. Help!

Code in ECU will likely be a P0300 series, P0301 is #1 cylinder misfire detected and so on and so forth to P0304.

If this happens only cold there are a few reasons for it.

Oil too thick. Should have 5W30 synthetic oil.

Oil Pump making too much pressure.

Max oil pressure must NEVER exceed 90 psi at any temperature, or any rpm.

If oil overpressure, you need a new oil pump. Do not clean up the oil pump! It lives in the oil pan.

What happens is, the oil pressure keeps the hydraulic valve elements from allowing the valve or valves to seat ....this make a misfire.

Another reason could be damp in the Spark Plug Coil tube causing spark to short to ground.

VW coils are rubbish may find the coils are going out.

Would assume by now you have a cure but if not here's a shop finder :

Dec 01, 2010 | 2002 Volkswagen Beetle Turbo S

1 Answer

Oil light/noise/oil level good

you could have sludge in the crankcase that is blocking the intake screen for the oil pump ... that happens a lot if oil isnt changed regularly .. in some cars it happens even if you do. ...the clatter you hear is the valve lifters collapsing . they need oil pressure to keep them extended properly ... if your oil pump isnt bad it soon will be .. it needs lub also or it will quickly be damaged ...sometimes you can wash out the sludge with kero/oil mix but the safe thing to do is drop the pan .. clean up the sludge and replace the oil pump.while you are there ...once you have the pump working you can first run cheap oil to clean out things ..then drain and install synthetic ...that will do a better job of cleaning out remaining sludge ... of course make sure you have the proper amount of oil to start with .. make sure there is no water in the oil (milky oil) .. make sure oil filter is not clogged ...some oil filters have a one way valve ... that can stick if the car isnt run for a long time .. ....

Apr 11, 2010 | 2000 Ford Escort

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I believe I have a bad oil pump. I know my serpentine belt needs replaced. can these problems be related? My oil light came on, oil was just changed two days prior. I checked oil and it was okay. There is...

They are not related. If the belt broke, the water pump would stop pumping, the car would overheat, power steering would quit, battery stop charging, etc, but just 'needing to be replaced' means that the above will happen if the belt fails. Your oil pressure is provided by the oil pump, which is not dependent upon the serpentine belt. You should remove the oil pressure sending unit, crank the engine over, run it briefly (10 seconds), you should have oil spewing out where the sending unit was. If not, there most likely is no oil pressure, as indicated by the red warning light. Always assume the oil light going on indicates there is no pressure, and turn off the vehicle immediately. The risk of continuing to drive the vehicle will result in severe engine damage. I hope this hasn't happened, but be prepared for the worst.

Jan 02, 2010 | 2003 Toyota Matrix

1 Answer

How are is it to replace the oil pump. just

Yes it can, do an oil change and filter. If oil isn't changed at regular intervals, the filter can become clogged and won't get a good flow.
It's best to change the oil every 3 months or 3,000 miles, whichever comes first.
Changing the pump is not an easy job.

Nov 20, 2009 | 1993 Buick Park Avenue

2 Answers

I have a 1993 Chevy Truck that every once in a while will get a knocking sound from the engine at normal operating temperature. During this time the oil pressure will drop and it feels like the engine is...

One of two things is happening, either the oil pump is starting to go or the lifters are sticking. A small shot of water while the engine is running into the carb will take care of it believe it or not. Use a spray bottle or just drip very small amounts.It's like steam cleaning your engine.

Aug 18, 2009 | 1993 Chevrolet K1500

2 Answers

Lost oil pressure

Highly unlikely that you need a pump, but it is possible that the pick-up tube that extends down into the oil pan, from the pump, has become loose or broken and dropped off it's mount and into the oil pan. It is also possible that the screen on the pick-up tube has become covered in sludge build-up and is no longer allowing oil into the pump. The next course of action would be to remove the oil pan and have a look at the condition of the oil pump pick-up tube and go from there

Apr 13, 2009 | 2005 Chevrolet TrailBlazer

1 Answer

Oil Pump light flickering + rough idle on 1996 Nissan Maxima

Sounds more like the Throttle Position Sensor or another sensor is letting the engine RPM's drop too low. When the RPM's are too low, the oil pump is not pumping enough oil.

Feb 26, 2009 | 1996 Nissan Maxima

1 Answer

Oil prsseure

Before you dig into a new oil pump, are you using the correct viscosity oil, has it been a long time since your last oil change? If your oil is begining to thin out, it could have that effect. Or on some older vehicles that is normal, as long as there is oil pressure there it means parts are getting lubed. But if it happens to drop to 0psi look out. If still worried go ahead and replace the pump but I think you'll be just fine.

Sep 29, 2008 | 1989 Chrysler LeBaron

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