1992 Mitsubishi Pajero Pricing and Specs

That’s pretty outrageous fuel consumption and equates to about 30 litres per 100km when 10 to 15 litres per 100km is a more realistic expectation from a vehicle like this. And that points to something seriously wrong with the way the on-bard computer is supplying the fuel to the engine.

You need to start by running some checks including the fuel delivery pressure, as well as the various sensors around the engine that determine the fuel mixture. It could be as simple as a dud engine temperature sensor which is telling the computer the engine is stone cold, even though it’s not. But equally, you could have a problem with an oxygen sensor, a throttle position sensor or even a simple vacuum leak. Even a throttle body that is not adjusted properly or a dirty mass-air-flow sensor can throw things out of kilter and cause over-fuelling.

The danger is that, if you continue to drive the vehicle as it is, you’ll not only go broke putting petrol in it, but you might also damage the engine through the excess fuel causing damage to the cylinder bores.

Squeaks from the engine bay are often caused by worn drive belts, their pulleys and tensioners. You might even have a worn power steering pump, water pump or air-conditioning compressor that is giving off the odd squeak or groan. It’s worth tracking down, though, as should any of these components seize or snap, you could be left stranded.

Check around the water pump for any sign of moisture. At the bottom of the pump housing near the front of the engine, there should be what’s called a 'weep hole’. Any dampness here suggests a pump that’s already leaking and could let go any time, perhaps without further warning.

Even an air leak in any of the car’s vacuum systems (including the one that powers the brakes) can sound like a squeak or squeal, so check all the rubber lines for splits or holes and also that they’re tightly secured to their respective fittings.

Don’t forget to look for any evidence of chafing or rubbing together of various parts. This can also create odd noises.

This model Pajero is a bit notorious for having a crank-angle sensor that can fail over time. This is the part of the engine that tells the computer which cylinder needs to fire next, and precisely when, and if it starts to fail, that information is not conveyed and the engine will stall.

This sensor can fail gradually and intermittently too, producing the sort of hit and miss running you’re seeing now. It will often start to fail once the engine gets hot, and perhaps that’s why your car is stalling after running for a short time.

The bottom line is to not ignore it as it won’t fix itself and will eventually get worse until the car won’t start at all. At which point, you’re stranded where ever you happen to be. It shouldn’t cost too much to replace the sensor, but a mechanic should be able to tell you if, indeed, this is the problem.