Q: Noisy lifters 1991 Mitsubishi Montero

asked by on

My 3 liter V-6 has 168,000 miles on it. Recently, my lifters have been making a racket. As this engine has SOHC's I am wondering if they can be adjusted somehow like you would on a pushrod engine.

My oil pressure seems as normal as it ever has been and I have good compression in all cylinders. I assume that my valve guides could be replaced because the engine uses about a quart of oil every 800 miles and this is a problem common to this engine. It is my understanding that this is about normal for an engine with this many miles.

Would replacing the lifters fix this problem? The engine runs just fine. I just hate the lifter noise. I have tried different oils and am now running a "high-mileage" full synthetic.

Thanks, Dan

My car has 168000 miles.
My car has an automatic transmission.

Hello - your "noisy lifters" could have a couple of causes: worn out lifters (they’re hydraulic by the way, not adjustable), or poor oil supply to them. Poor oil supply could be a blocked oil passage, worn out oil pump, worn bearings reducing available oil pressure, or a sludged up engine. Options to repair, based on the real problem include lifter replacement, engine flush, new oil pump, or major engine repair. I recommend a noisy engine inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. Noisy lifters 1991 Mitsubishi Montero

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: temp gauge shot through the roof, heard rattling in engine, smoke coming from lower passenger side of engine, belts slight squeek

If your engine temperature overheated, then you have problems in the cooling system. Running it low on oil does not help an engine. If you are getting smoking and noise from the engine, then you need to have the engine...

Q: Engine/battery light on

If the Engine and Battery Light have come on, then you probably have two separate problems. The Battery Light may indicate that the system's voltage may have dropped too low, which may be indicative of even more problems, such as...

Q: Need transmission replaced.

Sounds like you may have some transmission problems, I would take it to a transmission specialist to determine what the problem is.

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.