You have to take the top cover off the engine, there are four bolts holding it on ,two are on top near the front of the car and two are near the exhaust manifold. May sure you disconnect the electronic ignition plug before lifting the cover. It is located near the brake vacuum pot. When you lift off the cover you will see the spark plug holes. the Spark plugs are at the bottom of these holes.
The first 3 spark plugs to the right are easy to change,the one on the left you have to loosen up the alternater to get to.
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all the spark plug wires are on it
Provides a high voltage to the spark-plugs so that the fuel ignites in the cylinders.
how do you change the spark plugs on a 1991 q 45 infiniti
How do you replace starter on2.3 cy 1991 pontiac grand am
There are four spark plugs on each side of your 1991 Chevrolet engine. The spark plugs will be near the bottom of the engine.
In a 1991 Pontiac Grand Am : According to my Chilton's Auto Repair Manual : ( 13.6 U.S. gallons )
Bad Ignition (Spark Plug) Wires. Bad Coil(s). Bad ECM or ECU. Incorrect Spark Plugs. Ground Wire(s) missing or loose. Alternator fault. Bad Battery.
In the engine... If it is a a straight six. They run in a row. follow the spark plugs wires to them.
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You only set the timiming for engines with spark plugs, and diesels don't use spark plugs.