Evison: According to DoItYourself.com: "
If your vehicle is behaving erratically and you have problems with it running smoothly, it could be showing signs of ignition coil failure. The ignition coil takes power from the generator and relays it to the spark plugs. This ignites the fuel and makes your vehicle run. The severity of the symptoms vary according to which of the ignition coils are failing.
Backfiring
If your vehicle is backfiring, this can indicate early symptoms of a failing ignition coil. This occurs when unused fuel is emitted through the exhaust system. If you do not address the issue, you can also do serious damage to your exhaust, resulting in unnecessary and costly repairs. Your exhaust may emit a black smoke and you may even detect the smell of gasoline.
Starting Problems
Check your high tension leads (HT Leads). These run between the distributor and spark plugs. Ignition coil failures result in one or more spark plugs not receiving the appropriate amount of charge. If you have trouble starting your vehicle in the cold, this is a good sign of potential ignition coil failure. You can run a simple test on the HT leads to check that there is in fact a spark going from each lead to each spark plug.
Fuel Economy
If your vehicle is getting a lot less mileage for the gallon, This can also be a sign of ignition coil failure. When less power is reaching the spark plugs, your vehicle will struggle and use more fuel to compensate for the lack of power transfer.
Engine Misfiring
Trying to start your vehicle when the ignition coils fail will result in a rough ride. Your vehicle will cough and splutter regularly and when you drive at higher speeds, your vehicle will jerk and spit. It will also vibrate when you are running idle at a stop sign or intersection.
Vehicle Stalling
With ignition coil failure, your vehicle will have irregular sparks emitting to the plugs to keep it running. This will result in stalling. When you bring your vehicle to a stop, it may just shut off totally, thus leaving you needing to restart it.
Coil Failure
If your spark plugs are worn out, it forces the ignition coils to operate at a much higher output. Keeping your sparks plug in optimum condition can reduce your chances of having ignition coil problems. Some simple regular maintenance will save you a lot of money in the long run.
If the gap in your spark plug widens due to normal erosion, it leads to an increased voltage being required to create a spark in the chamber. That increased voltage demands more current flow through the primary circuit and this increased current flow can overload the primary transistor. Keeping all these components in good running condition is also a big help towards keeping your coils in a good working condition."
SOURCE: Galant Special Edition 1994 Motor does not start
this maybe caused by no fuel or faulty fuel pump, ignition coil, wire and plug crank position sensor. first check for spark by removing on spark plug wire and put a spark plug in the spark plug wire boot, donot touch the plug only the boot have someone crank the car over. if you see spark, that part of the ignition is good. if not, check the coil resistance if should 40 to 80 ohm with a volt meter pf not replace. if ok, but no spark check the igniton control madule make sure the coil and module are receiving current. if not check the fuse that feels them. if it is ok, check distributor cap and rotor. if rotor and cap are fine, check for fuel at either the fuel filter, the fuel return line or removing some spark plug and see if they are wet. if there is no fuel check the fuel pump and the fuse and relay that control the pump. if there is fuel with high pressure but there is no spark, check the crank sensor for signal with a volt meter while cranking the vehicle
SOURCE: 96 grand prix se engine problems
Your problem may be a faulty (shorted) ignition coil housing assembly (the white plastic cover housing the coils its bolted to the aluminum cover) change that along with the spark plug boots ( the boots are optional but I recommend it) that should get your Grand Prix running smooth. Good luck and keep me posted, be glad to help
SOURCE: 99 lancer,speedo tacho n gauge problem.
probably burnt or cracked circuit board on back of gauge cluster
SOURCE: SOMETIME ENGINE DOESNT START WHAT
suggest you take it to an autoparts store and have them read your error codes off the computer. Make sure you write them down in the order they come off the computer.
SOURCE: gmc sierra 1500 97,brand new
Fuel pump and gauge does not work? Go to the harness connector near the tank and find the ground wire. Make sure its a good ground.
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