Chevrolet Express 3500 Parts And Chevrolet Express 3500 Accessories
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The Chevrolet Express 3500 full size van is a highly efficient and reliable vehicle, but it does have its share of problems. Among the most common of which is low oil pressure. Engine oil pressure must be kept at an optimum level to ensure consistent engine operation, and if it dips below that, it can cause significant damage to the engine components.
Once the engine oil pressure warning light in your Express 3500 turns on, stop driving immediately and switch the engine off. Below is a breakdown of the common causes of low oil pressure, and how to diagnose and fix them:
Oil needs to travel around your Chevrolet Express 3500 at a set pressure in order to achieve \"hydraulic lock\". Maintaining this lock ensures that the oil travels through the various channels inside the engine at the right amounts at the right time. If the pressure goes below the threshold, the engine\'s metal components will start rubbing against each other, causing severe damage to these components as well as overheating the engine in general.
There are many reasons as to why the oil pressure in your car may go down, although the most common one is simply lack of engine oil in the system. Although the engine oil is completely sealed to maintain pressure, engine oil will still gradually diminish over time. Leaks in the piston rings, valves, and seals of the engine can also accelerate the loss of engine oil and oil pressure. In some cases, the lack of oil pressure may be due to the oil not being able to circulate around the engine due to a broken oil pump, defective oil pressure sending unit, and oil pressure gauge.
First, check if the engine oil level via the dipstick, which is located on the top left of the engine bay near the passenger\'s side. Carefully pull out the dipstick, wipe with a clean cloth, return to its receptacle, and pull it out again. Ideally, the oil level should be in between the \"Add\" and \"Fill\" indicator; if the oil is below the recommended level, gradually refill with engine oil. Also, take note of any signs of oil leaks in the engine, particularly around the valve cover, oil pan, timing cover gaskets, and crankshaft oil seals. Even if the engine oil is replenished, a leak will quickly drain it out and cause the oil pressure to go down again.
If the engine appears to be in good condition, have the engine oil pump checked by a mechanic. The mechanic will attach a pressure gauge to the engine\'s oil pressure sending unit to determine the exact PSI of your engine. If the oil pump is working properly, the gauge should indicate at least 10 psi for every 1000 rpm. If the pressure is less than that, the pump or the engine bearings may have failed and must be replaced. Also, if the engine oil is at optimum levels and the engine running normally but with the oil pressure warning light on, the problem may be due to a defective oil pressure sending unit, pressure gauge, or even a defective warning light switch.