SD1too

https://www.ebay.co.uk/sch/i.html?_nkw=fuel pumps&campid=5338181132&customid=2518X1570512X129eed78a7da8db844f92fac7c1d89ba&mkcid=1&mkrid=710-53481-19255-0&subId2=15&toolid=10001

There may still be a gasoline supply issue, perhaps due to a clog in the fuel line, a malfunctioning pump, or an obstruction in the fuel distributor. One method involves detaching the fuel line beneath the hood from the fuel distributor and directing it into an appropriate receptacle. Subsequently, request an assistant to briefly activate the ignition; a robust surge of fuel should be observed. While specifications for flow rate may exist, a discernible, vigorous discharge of fuel indicates that issues at the rear can likely be ruled out. Given that you have removed the tank and replaced the filters, you can likely exclude these components, leaving the fuel pump or the fuel pump relay as potential issues. While there may not necessarily be a fuel issue, refrain from examining the injectors, which may cost around £400 apiece, until you have confirmed a reliable fuel supply to the engine. A new fuel pump, costing a few hundred dollars, is a more economical choice than replacing four injectors. Search for postings by a user named Optimusprime, who has just replaced gasoline pumps on his W124 due to fueling problems.

I often use the strategy of prioritizing the least expensive tasks, therefore beginning with the plugs is a prudent choice. I am also inquiring about the potential for fuel starvation—when was the fuel line filter last replaced? If partly obstructed, this may limit gasoline flow at peak demand, therefore producing the symptoms you describe. There exists a strainer in the tank and an inline filter near the fuel pump(s). Some vehicles are equipped with a single fuel pump, while others have two; a malfunctioning pump might also be a contributing factor. Replacing plugs is straightforward; using a set of ramps facilitates the process. Additionally, it is rather simple to deplete your fuel tank to a minimal level before replacing the gasoline filters independently, following the drainage of sediment from the tank by detaching one of the pipes and collecting the residue in an appropriate container. I would like to do these actions prior to investing in more costly items; neither plugs nor filters can cause any harm. Fuel pumps are rather pricier, although on a 25-year-old vehicle, they may be nearing the end of their efficacy, thus warranting consideration.

The only caveat for the Pilot Sport 4 SUV is that the 275/45R21 is a tire specified by Mercedes as original equipment. They may be commendable, although the evaluations do not inherently correlate. Tire Rack highly regarded the Vredestein Ultrac Pro, noting that it is a summer compound that performs and handles similarly to a European grand touring tire. It is also $174 less expensive per tire than the Michelins. I would also consider the Continental ExtremeContact DWS 06+. They are an all-season tire; yet, the original model remains the most effective rain tire I have ever had.

I regret to learn about your difficulties. That seemed incorrect to me. Has the vehicle undergone remapping or tuning? Which automobile is it?

I concur; I anticipated that the high mileage would need repairs, maybe extensive ones. However, I am prepared to do this since it is a unique vehicle. I will inspect the filter tomorrow and await the oil test results. Subsequently, I may replace the bearings during the next 1,000 to 2,000 miles throughout the summer.

It is a sound suggestion; I presume I can remove the filter for inspection and reinsert it if everything seems okay.

A faint whining noise varies with engine RPM, but I am very certain it originates from the belt and is thus unlikely to be connected. Upon opening the oil cap, a peculiar tapping sound is emitted; nevertheless, this phenomenon is reportedly typical for the engine, leaving me uncertain. It operates well, as it has for the 4,000 miles of my ownership, and there are no strange noises emanating from the lower end. I am supposing it is the rod bearings, however.

Purchased my vehicle at the beginning of May with 186,000 miles. Recently conducted a comprehensive service at 190,000 miles and discovered microscopic flakes of gold-colored metal, around 1mm in size, in the oil filter. I am awaiting the arrival of an oil analysis. Is this likely related to rod bearings? What actions should I undertake? What is the severity of the situation?

Conduct more investigation to ensure absolute certainty about the component numbers before to placing an order; nonetheless, I am almost certain that the 1.8 and 2.0 heads are similar, since both have the 2.0 marks cast in the vicinity of the valve gear.

The M102 8-valve 1.8 and 2.0 cylinder heads are identical, however the 2.3 is distinct. It seems that yours has already been skimmed. It is hard to ascertain from the images, but it seems rather acceptable in the typical location—between the cylinder and the coolant passage—although the reasons for the skimming are evident. The issue is that individuals fail to repair head gaskets promptly, allowing them to leak for extended periods, which results in corrosion of the alloy head (and the 'steam cleaning' you have seen!). In summary, it seems that the prior head gasket installation was subpar, perhaps including an excessive skim to eliminate corrosion. A replacement head or alloy welding with a little skim would have been more advantageous. A new Elring head gasket set, along with likely new head bolts, should suffice. The fasteners seem to be loosening in the rear, and/or cylinders 3 and 4 are experiencing elevated temperatures for many reasons. What is the mileage, and whose vehicle is this regarding?

The symptom, if the dash warning light exhibits similar behaviour, indicates a distorted signal from the reluctor rings. May result from corroded or fractured rings, as well as tyre discrepancies in size or pressure. Alternatively, a defective brake light switch may require the application of the brake before initiating movement.

Negative - they possess no magnetism to forfeit. Their purpose is to finalise a magnetic circuit.

Attributing failure to the sensors when the scanner only displays improbable signals is unreasonable. Which does not necessarily indicate sensor failure. Do the warning lights activate upon key-on or only when the vehicle is in motion?

Your assumption is not enclosed in quotation marks?