Skip the auto shop - Our mechanics make house calls

Q: Oil pressure fluctuation

asked by on

The oil pressure is fluctuating back and forth.

A: Your oil pressure fluctuating is most likel...

Your oil pressure fluctuating is most likely caused by a faulty sending unit. The sending units on 4.3 liter engine are known to fail. To be safe I would ask for help from a mechanic at YourMechanic to properly diagnose this issue to make sure it is not something more serious such as a mechanical issue with the engine.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: passlock problem

Hello - If you have a 2nd or 3rd key which is known to work, try those keys when your primary does not work. This will help isolate the problem to either the key or the reader. If only one...

Q: Battery won't keep charge, car slow to start.

Its sounds like you could have a parasitic drain on your battery. You would need to have a technician trace where it is coming from. A common problem is with interior lighting in the car. There may be a shorted...

Q: Would a bad pcv valve make the engine run hot

Hi there. From the description you have provided, your vehicle's bad PCV and coolant loss are not related. The PCV (positive crankcase ventilation) valve is designed to remove combustion gases that get past the piston rings into the engine. Typically,...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...