The best way to Verify the Engine inside a Hyundai 1Open the hood and get rid of the rubber stopper plug within the intake manifold working with a pair of pliers. The intake manifold is within the backside in the engine near the firewall. You will need to pull difficult on the rubber stopper to take away the plug.2Push the hose and plug on the vacuum pressure gauge in to the access hole on the intake.3Start your Hyundai's engine.4Check the vacuum pressure gauge.The vacuum pressure gauge will let you know a lot of prospective troubles with your car.
Your Hyundai's vacuum pressure should really hold steady at idle at 22 PSI (pounds per square inch) on the vacuum gauge. If it fluctuates wildly from 22 PSI to 10 PSI, then there is a vacuum leak that is definitely brought on by weak valve springs that should be replaced. In the event the pressure gauge holds steady at three to 4 PSI, there is a big vacuum leak that requirements to be fixed by a professional mechanic. In the event the gauge reads ten PSI Professional diagnositic tools, then your Hyundai probably desires a valve timing adjustment. Your Hyundai might also start to misfire because it's not acquiring the proper quantity of air for the fuel that's being pushed into the engine. When the gauge reading begins out normal then drops to roughly 10 PSI, this indicates a blown or severely leaking head gasket which requirements to become replaced. You might also notice white steam coming out of your tailpipe even though the engine is running but if it can be a minor gasket leak, you might not see this. Your engine may well also overheat from a blown head gasket due to the fact that the engine coolant is leaking in to the combustion chambers and getting turned into steam and is just not cooling the engine. In the event the needle on the pressure gauge fluctuates 4 PSI to 6 PSI away the baseline of 22 PSI Auto code scanner, then your Hyundai's valve guides are worn and need to be serviced by an expert mechanic.
5Check the engine to find out if it really is shaking. This could possibly be brought on by a loose motor mount on either side of the engine that will have to be serviced by an expert mechanic.6Check for colored smoke coming out of the tailpipe of one's Hyundai. Bluish smoke indicates an oil leak in your engine. White smoke is actually steam triggered by a leaking head gasket (pointed out in step four). Check for dark black or gray smoke. This indicates that your engine is burning too substantially fuel and not obtaining sufficient oxygen (also named "operating rich"). If you Hyundai car is "running rich," however, you will likely see your examine engine light come on. A rich fuel mixture is usually the result of a faulty O2 sensor or a faulty mass airflow sensor, both of which will should be replaced by a professional mechanic.7Check to view when the check engine light comes on. Though this can indicate a multitude of complications, some of them are related towards the engine. You can take your Hyundai to any auto parts store, and they can run a free diagnostic test for you making use of a special tool that will plug into your Hyundai's on-board diagnostic computer. Then, they will give you a print out that will show you what the problem is.
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