After this engine sat for awhile it wouldn’t restart. This is a 2 horsepower briggs and stratton engine. This engine is on a rototiller, but the problem would be the same with any other engine. The first thing to do is to decide if the problem is fuel or spark related. These are the first problems to check for. First check the obvious thing like adding fresh gas to the tank. Generally if the problem is fuel related the engine will at least sputter. Another way to test this is to remove the spark plug and squirt a small amount of gas in the cylinder, replace plug. If the engine starts but doesn’t stay running you have a carb or fuel issue. If it still does nothing you should remove the spark plug and lay it on the cylinder head. Then you probably have no spark and have an ignition problem.
This is a 1991 Ford Mustang with a 2.3 liter four cylinder engine. The automatic transmission is slipping when it’s shifting to higher gears. The first thing to check for is a leaking line which could suck air. The next thing to do when your transmission is slipping is to remove the transmission pan. When the pan is removed a couple things can be done. First the arrow points to the magnet that will pick up some of the worn material. There should be a minimal amount of material on it, if not there may be larger problems. Also this is the time to replace the transmission filter which may cause slipping also. This transmission needs to be rebuilt as it has worn clutches that need to be replaced. Most automatic transmissions are built very similar.
If a coil pack dies the car will generally quit and won’t restart, especially if the engine is warm. When first diagnosing the engine remove a spark plug and still connected to the spark plug wire, lay it on the engine. Crank the engine over and look for spark to jump across the plug. This is a 1999 Chevy Cavalier with a 2.2 liter 4 cylinder engine. The engine quit quickly and would not restart on this car. The next step was to check the 12 volt power wire that powers the coil pack. After disconnecting the plug and checking the wire, there was power to the coil pack. This eliminated the possibility of a fuse or the ignition switch.
The ac on this 3.3 liter Dodge Caravan is still working but it is now making a terrible noise when it is engaged. The other problem is that the ac is not disengaging and still makes noise after it is turned off. If the ac is still blowing cold air the compressor is probably still operating fine. If no cold air is blowing then you will first need to verify that there is enough coolant in the system to allow it to turn on. The other possibility is that the compressor has gone bad. This article will only cover the compressor which is a very common problem with ac units.
If the serpentine belt breaks on a car the alternator will quit charging and the water pump may not work, causing the car to overheat. Before the belt breaks it is good to inspect it for cracks on the inside where the ribs are located. Also if the belt is worn the topside of the accessory belt will look rough instead of smooth. In the picture you can see the arrow pointing to the belt tensioner. Depending on where this is located will judge how tough of a job it is to do. There is a breaker bar connected to the tensioner in this picture. The breaker bar is a 1/2 inch drive bar. Some tensioners will have a nut to place a wrench on instead of this square hole for a breaker bar.
If your car won’t start, there are a few things to try. First charge the battery for awhile or have it load tested at a car parts store. If the battery holds a charge the alternator may be faulty. If the engine clicks but will not turn over after you have verified that the battery is bad, you may have a bad starter. This is a starter replacement on a 1995 cadillac sts with northstar engine. The starter on the northstar is located below the intake manifold. To the left you will see the picture of the engine. There are four plastic nuts on the top of the engine cover shown. They will need to be removed to access the engine’s intake manifold. Below the cover in the picture you will see the four spark plug wires.