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The first thing to remember is only change plugs on a cold engine, or you can risk damaging the cylinder heads. Disconnect the battery, and remove the sparkplug wires from the plugs (pull the boot, not the wire). A slight turning of the boot may aid removal; be sure to keep the wires in order. Use a socket to remove each spark plug from the cylinder head. Check for oil or black soot, which may indicate an engine problem. Check the gap of the new plugs before installing; the recommended gap is .060" - you can get a simple gapping tool at any auto store. Thread each new plug into the cylinder head, being extremely careful not to cross-thread them. Snug them down; do not over-tighten. Re-attach the plug wires until you hear them snap on. Reconnect the battery and drive.
the engine (there are more than one engine) has a distributor. "have spark at coil down to dizzy but no spark at plugs" this can mean only 2 things. 1: spark wires are dead. all 4, kinda hard to believe huh? 2: the dizzy is way off time. so time the dizzy and now spark lands on each wire term. if not a dizzy engine, post exact version of engine and country.
First of all did you check all fuses if so that ok, next did not mention changing crankshaft sensor. When you remove ht leads that go to spark plugs are they sparking use rubber handled pliers to do this or you will get a shock, if they ok did you set the clearence on the new plugs correctly?. also when cranking check with magni-stick pen to make sure injectors pulsing ie;getting signal. also immobilizer could cause engine to to start,usually light will flash on display to tell you this.last thing just make sure timing belt not snapped usually heard by engine turns faster than normal.
Running rough and misfiring is usually a one or more bad spark plug wires. Don't go back to that dealer. Replace the wires or have your mechanic do it for you. If you replace them, take one off at a time and install the new one. If you put the wires back on in the wrong order, it will misfire.
Have you checked the spark plugs since the light came on? you say that you belive they caused the light to come on? If this is true, are you sure that you spaced them properly? Proper spacing is crucial to making sure they fire correctly and every time. Also, are the correct wires put back in the correct firing order? If all this has been done correctly, take a look at the spark plugs. Do they still look new? Are they covered with oil or early signs of excessive corrosion? Appearences by any of these could point to problems with gaskets. Hope this helps.
Disconnect the negative battery cable. Then start at the front of your engine. Pull the spark plug wire off the spark plug from the boot that covers the spark plug. Remove spark plug from engine block, take new spark plug, check for proper gap and adjust if necessary, and then install new one into block. Repeat for the rest of the plugs. Re-connect negative battery cable and you should be good to go.
yes i would change the plug wires , you can take a spray bottal with water and spray that wire, and if it starts to run real bad then it is shorting out, you may also have a injector going bad you can test this buy puting a ohms meter on it and ck the ohms it should read the same or close to the same as the other if not it will need replaced
Disconnect alternator wiring; disconnect battery for a minute; reconnect battery & see if it starts & runs. If it works, replace alternator. If no difference, could be ECU error caused by alternator fault or carelessness with wiring when installing (spark to ECU perhaps). Check ECU codes (short the two-pin blue socket sitting loose on the transmission tunnel below the dash, switch ignition on and count any flashes of the check engine light (MIL))