My check engine light is on or blinking at me the whole time, my rpm gauge reads 600 unless I'm really accelerating, and I can hear something creaking in my front left side that causes slight steering difficulties coming out of turns. Some one help me I just bought this car.
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The check engine light needs to be addressed. Yes it could be a sensor but you need to know. The light blinking means the problem is serious, such as a dead miss on one or more cylinders. The light being on means something is happening with the engine performance that could damage the catalytic converter. Get the computer scanned - most auto parts stores will do it for free in hopes of selling you some parts. Once you have the codes research them online or here.
Look for the oil pressure sending unit on the block or the cylinder head on the V-6 or V-8 models.
OIL PRESSURE TEST
Check for proper oil pressure at the sending unit passage with an externally mounted mechanical oil pressure gauge (as opposed to relying on a factory installed dash-mounted gauge). A tachometer may also be needed, as some specifications may require running the engine at a specific rpm.
With the engine cold, locate and remove the oil pressure sending unit.
Following the manufacturer's instructions, connect a mechanical oil pressure gauge and, if necessary, a tachometer to the engine.
Start the engine and allow it to idle.
Check the oil pressure reading when cold and record the number. You may need to run the engine at a specified rpm, so check the specifications.
Run the engine until normal operating temperature is reached (upper radiator hose will feel warm).
Check the oil pressure reading again with the engine hot and record the number. Turn the engine OFF.
Compare your hot oil pressure reading to specification. If the reading is low, check the cold pressure reading against the chart. If the cold pressure is well above the specification, and the hot reading was lower than the specification, you may have the wrong viscosity oil in the engine. Change the oil, making sure to use the proper grade and quantity, then repeat the test.
Low oil pressure readings could be attributed to internal component wear, pump related problems, a low oil level, or oil viscosity that is too low. High oil pressure readings could be caused by an overfilled crankcase, too high of an oil viscosity or a faulty pressure relief valve.
Yes it can be related. If you bought the car from a car lot you may have a window sticker showing a 30 to 90 day warranty. The Catalytic converter can be expensive although it is similar to installing a muffler or header extensions.
The hesitation can be due to the engine controls trying to adjust for the difference in exhaust readings from one side to the other. Or it has excessive backpressure caused by the plugged catalytic converter.
My cougar does the same, it starts and then about 1 minute later (or so) the check engine light comes on and the car idles really high, with black smoke out the exhaust. It stays in second gear i think and it will not shift out of it. Max speed is 40 mph with the rpms screaming, it will go off after a long time but this is agrivating. I have a 94 mercury cougar xr7 3.8 ltr Any help please?