Question about 2002 Chevrolet Tahoe

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Why did my oil pressure light come on while driving and then my vehicle started puttering and then the check engine oil light came but the vehicle has oil in it..

Engine stll cranks but then starts rattling and shuts off

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  • Chevrolet Master
  • 14,825 Answers

Could be your oil pressure switch that is screwed into engine block by oil filter.This is the first step in checking problem.Here's a link on removing part from engine.Here's the part.

Posted on Dec 22, 2012

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6ya6ya

6ya staff

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Posted on Jan 02, 2017

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autodr

autodr

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SOURCE: 2004 chevy trailblazer 73,000 miles

the first place to start is the flashing engine lite. that means cylinders are not firing at all or improperly and driving it like that for even short period could cause heavier damage. particularly valves and cat converter(s) the computer really needs to be scanned for codes in order to proceed. did the oil lite come on before or after engine quit. after engine quit would be normal cause it stalled. its possible that it needs spark plugs and/or coils. or more

Posted on Nov 20, 2008

Anonymous

  • 335 Answers

SOURCE: 7.4 liter mpfi engine starts, then shuts down.

The oil pressure sending unit should be located behind the distributor way in the back angled away from the engine, fuel filter been changed?
www.aceautomotive1.com if you findd this information helpful please give me a good rating
if you like i can email you a diaggram and location of the sensor you need
my email: fixincars@yahoo.com

Posted on Aug 10, 2008

Anonymous

  • 1 Answer

SOURCE: Low Oil Pressure on 1992 Chevy 1500 Pickup Truck

1992 silverado pickup has a problem with the oil pressure Gage on the dash board fluctuate when i put break on or accelerate the gas 

Posted on Feb 14, 2009

Anonymous

  • 1 Answer

SOURCE: my 4.3 chevy caprice wont start, i have tried or

Do your switch turn over? You have to have the cover on top of the motor on before it will start!

Posted on May 18, 2009

Anonymous

  • 23 Answers

SOURCE: low oil pressure after engine warms up in 94 blazer with 4.3

I have a 99 blazer and ever since I have owned it, it reads lower in pressure when idling, but will go up too 40 while driving. This is normal for the vehicle. If the pressure gets real low, and stays low, it means its time for an oil change.

As long as the pressure goes up when you give it gas, it is fine.

Posted on Jan 09, 2010

Testimonial: "But why has it started reading low, especialy after the new oil pump was put on. It read a constant 40 even when idling before."

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1 Answer

2007 Chevy Trailblazer. Oil pressure drops below 0 when started then climbs to the 0 mark but never goes higher. Engine seems to be running fine and no warning lights. Can I drive the vehicle 10 miles


indicates a problem oil pressure sender unit
have the oil pressure checked using a mechanical pressure gauge and if OK then replace the sender unit or gauge

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Engine oil pressure light came on. I checked oil levels and added 1/2 ltr. Light went out and didn't come back on. tune up to be done on Tuesday next week. I suspect it might be the oil filter. Should...


If your oil level is full, light is off and no abnormal engine noises, if should be ok to drive to the shop. If light does come on, stop the engine. I would also have the shop check your oil pressure with a manual gauge, to determine the exact oil pressure reading. This could save you from major engine failure due to low oil pressure. I hope this helps.

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While stop oil light blinks on not whlie i am driving.


When the engine is running at idol the oil pressure drops causing the oil light to flash or come on. While driving the engine is running harder and oil pressure is increased and the light goes off. Your oil level may be low in the engine or the oil pump is starting to fail. Is this a vehicle with high mileage?

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1999 JImmy after vehicle sits over 3 hours I start (not a problem to start) it will idle at 500 RMPs and start to putter and putter. If I hit the gas it will go to 3000 RPMS with no problem then once I...


Try cleaning the throttle body (throttle body cleanner ONLY). Uncover the TB (engine off) & inspect the butterfly by moving the throttle by hand, if the underside & down inside the TB has a bunch of carbon (black soot) that could hamper with the idle! Also, check the fuel pressure @ the rail, under 60 psi could cause bad idle. Air filter clean? Did you make SURE that the terminals under the spider injector wiring harness has NO pins bent over during connection?! Also could check the throttle possition sensor & the mass air flow sensor if need be.

Aug 25, 2010 | 1999 GMC Jimmy

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Oil pressure light stays on .engine is running good .why is the light on?


Check the oil pressure sensor and the wiring to it.

Oil Pressure Sensor Removal & Installation 3.4L & 3.5L Engine To Remove:
  1. Disconnect the battery ground cable.
  2. Raise and safely support the vehicle.
  3. Disconnect the electrical connector from the oil pressure sensor. chev_vent_op-sen.gif

  4. Remove the oil pressure sensor from the engine.
To Install:
  1. Install the oil pressure sensor on the engine. Tighten 12 ft-lb (16 Nm).
  2. Connect the oil pressure sensor electrical connector.
  3. Lower the vehicle.
  4. Connect the battery ground cable.
  5. Start the engine and check for leaks.
3.6L Engine To Remove:
  1. Disconnect the oil pressure sensor electrical connector. Oil pressure sensor 3.6L gm-04-36-2519.gif

  2. Remove the oil pressure sensor.
To Install:
  1. Install the oil pressure sensor. Tighten 15 ft-lb (20 Nm).
  2. Connect the oil pressure sensor electrical connector.
  3. Check for leaks.
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Aug 07, 2010 | 2003 Buick Rendezvous

1 Answer

2000 saab 95 wagon,2.3t. oil pressure light came on. checked and filled oil, about 2 quarts. light did not go out. driving on highway, car shut down when check engine light came on. now car will only run...


Oil pressure sensor blocked or faulty. both oil level sensor and oil pressure sensor activate the oil light. engine goes into safe mode and shuts off ignition.

Mar 04, 2018 | Saab 9 5 Cars & Trucks

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VW Golf 4 GTI, Oil pressure and vehicle wont start.


If your oil pressure light comes on
Don't ignore it. An oil pressure warning light (or low gauge reading) means one of two things: either your engine has dangerously low oil pressure (for a variety of reasons which we'll get to in a minute), or the oil pressure sending unit that triggers the warning light (or operates your gauge) has failed.
The question here is whether you have a serious problem or a minor one.
First, do not keep driving if the oil warning light is on or your oil pressure gauge has dropped. Stop the engine, let it sit for a few minutes, then check the oil level.
Is the level low? If the oil level is down more than two quarts or no oil is showing on the dipstick, adding oil to bring the level back up to the full mark may be all that's necessary to make the light go out. Just keep your fingers crossed that you haven't damaged the engine from running it too low on oil. If you hear rapping or knocking noises the engine starts, you're too late. The damage is done and now you're stuck with the consequences.
Note: On some late model vehicles, the warning light will come on (or a message will appear) if a sensor in the oil pan detects a low oil level. The light is supposed to come on before the level gets low enough to cause any damage.
If your oil level was low, it means your engine is either leaking oil or burning it. Leaks can be fixed by finding and replacing leaky gaskets and seals. Sometimes the oil filter will leak if it isn't installed or tightened properly. But an oil burning problem means the valve guides, rings and/or cylinders are worn or damaged and more costly repairs are needed.
If the dipstick shows a full oil level, then low oil obviously isn't your problem. The oil pressure may be low because of a worn or broken oil pump, a plugged oil pickup screen in the engine's crankcase, possibly a plugged oil filter or excessive bearing wear. Or, the oil pressure may be fine but the oil pressure sending unit has failed. Further diagnosis will be required to determine what's wrong.
Should you attempt to drive your vehicle home or to a service facility?
It's risky. If the problem came on suddenly, your engine does not have a lot of miles on it (less than 60,000) and you noticed no unusual noises (no valvetrain clattering or engine knocking), there's a good chance that all that's wrong is the sending unit. But, there's no way to know for sure without actually checking the engine's oil pressure with a gauge, or replacing the sending unit to see if a new unit makes the light go out. If the problem is only the sending unit, your engine still has oil pressure and you can continue to drive it until the sending unit can be replaced. But, if you're wrong you risk ruining your engine.
If you think you might have a low oil pressure or oil delivery problem because of a bad oil pump or one of the other problems we mentioned, do not drive your vehicle. Doing so only increases the probability of further engine damage. Have the vehicle towed to a service facility for repairs.

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with out hooking up to scanner to pull codes have you changed fuel filter lately? had fuel pressure check? if i had codes could help more but thats where id start

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2 Answers

Oil pressure light on at idle


Don't delay on this. Take the vehicle in and have the oil pressure sensor checked. It could be just the sensor or it could be something more serious. A drop in oil pressure could lead to catastrophic engine failure.

don

Sep 30, 2008 | 2003 Dodge Neon

1 Answer

Oil Pressure or a lack there of


okay I dont think that one has anything to do with the other. I had this same prblem with my truck. The oil always had to be just past the full markor I got the oil light coming on. as far as the other prob youll need to start with fuel delevery and fire. check you timing, airfilter, spark plugs, pug wires basic troble shooting. then work your way up to the tpi, mass airflow sensors...ect if they apply good luck MrRodneyLong@Gmail.com

Jul 02, 2008 | 1992 Dodge Ram 250

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