Q: Noisy lifters 1991 Mitsubishi Montero

asked by on February 28, 2017

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.

Engine is running louder than normal Inspection $79.99 - $89.99 Get a Quote

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.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

What others are asking

how to fix the cvt transmission

The parts required will depend on exactly what has failed and that, of course, is determined through both a diagnosis and an inspection upon disassembly if it turns out that the transmission has to be rebuilt. Your car has enough...

How to replace lower ball joints?

Hi there. To replace the lower ball joints on a 2003 Ford Taurus, perform the following steps: (1). Raise up the vehicle and put it on jack stands (2). Remove the tires that are associated with the ball joints...

Engine stalled on my 05 ford escape at a light, and would not turn over but after 2 minutes started up like nothing happened

I think you may have a tempermental electrical connection. Maybe in the power distribution box or in the car's ignition switch. You could try looking at the battery terminals or the fuse panel for any apparent corrosion, but you might...

the car revs high and at stop signs while slowing down then idles down suddenly and sometimes stalls, whats the cause?

The engine intake manifold seals or the intake tubes between the mass air flow sensor and the throttle body may have a leak that you cannot hear, but could be found using a smoke machine designed to find the leaks....

I need to know how many transmission/ engine mounts I have and if they're front or rear mounts.

There are 4 mounts that you need to replace. There is a main side engine mount, a thrust front engine mount, a main transmission mount on the transmission, and a thrust transmission mount on the back of the engine and...

How to fix an oil leak?

The proper way to repair an oil leak would depend on where the engine is leaking from. Common leak sources include the valve cover gaskets, oil pan gasket, rear main seal, intake manifold gasket, oil filter, and drain plug. The...

I just got my serpentine belt replaced and it's squealing when I start the car and sometimes when I hit the gas

Noise of that type is due to a failed or failing bearing in one of the pulleys or accessories (e.g., alternator, water pump, A/C compressor) that is driven by the serpentine belt, the belt is not properly tensioned, or the...

I have a 1997 nissan maxima that has a misfire code of p0300 and p0302.

It's common to find the source of a misfire in the ignition system. Checking the coils with an Ohmmeter doesn't really tell you much though. When I diagnose a misfire, sometimes I find it helpful to swap the coils and...

INDICATOR LIGHT (EXCLAMATION POINT) BLINKING

The exclamation point with a gear around indicates a transmission fault, which requires a professional scan tool to read and evaluate the codes. The fact that it resets every time makes me believe it is an electrical fault, but without...

Related articles

The Best Used Cars to Buy for Families
If If it’s time for you to search for the top used cars specifically for families, check out the list we’ve put together of the top five. The list of must-haves Typical items that families are looking for in their...
A Buyer’s Guide to the 2012 Mitsubishi i-MiEV
Cute Cute pretty much sums up the 2012 Mitsubishi i-MiEV. It’s a super compact electric car capable of driving for quite some distance on battery power alone. However, the lack of a gasoline engine means that you might not want...
A Buyer’s Guide to the 2012 Mitsubishi Galant
If If you’re in the market for a midsize sedan and want the best price possible, you may be thinking about visiting a Honda or Toyota dealership. Before you do, check out the 2012 Mitsubishi Galant. Key Features Considering how...