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1

NEVER use anti-seize on spark plugs. Anti-seize has a metal base to it and not used sparingly, can short the electrode and cause a misfire. Also, if you have any questions, look up specs on all spark plug manufacturers about using anti-seize. ALL say not to in their spec sheets. Google "Should I use anti seize on spark plugs" and you will get your answer. I ...


4

Mitchell shows original equipment plugs are ACDelco 41-962 for the 5.3, which are double platinum plugs. Plug gap is 0.040". I've never used nor sold Bosch plugs before. From talking to people, I've never heard anything good. Make sure the plug gap is correct and that the wires are fully seated. If you still feel that the car is not performing as well as ...


1

Iridium is extremely hard. Plugs with Iridium last for a 120,000 miles with no loss in performance. I read somewhere that they can ignite lean mixtures when copper based plugs can't. Result better fuel economy.


0

Rule of thumb: 1. always check fuses first. If fuses are okay, then check relays [those are the silver 'fuses' in the fuse harness. 2. all okay? 3. check major relays under the hood. These are generally box-shaped black plastic with larger wires coming out of them. These are major problems in older cars because of the heat and moisture generated over ...


1

If you've established that you're not getting a spark at the plugs, the next thing to do would be to work back - so test the coil packs. Pull out the plug from one of the coil packs and see if it is getting power, has a good ground, and has some kind of signal coming from the ECU. If it does, chances are it's the coil pack itself that's failed (though both ...


3

If the plug wire was old and not sealing around the plug then you cold experience misfires not necessarily a no start. A lot of cars run fine with oil in the plug well from bad tube seals. Subarus are notorious for this.


6

You should have 2 coil packs on the back side of the engine near the throttle body. Wires run to individual cylinders. I don't know how easy it would be to find locally but you can use an inductance spark tester. http://www.amazon.com/Lisle-19380-Spark-Tester/dp/B0002STS3U Another way to see if the coil pack is firing would be to pull a wire out and ...


1

spark plug wires should last a very long time, so just check them when you get the plugs done, and replace if they're worn out. wires don't really wear with distance, it's time and heat cycles that cause the insulation to eventually degrade. usually there good for several years look for cracking of insulation, particularly at joints. check for corrosion of ...


6

I see this all the time unfortunately. You need this tool LIS65600 You may need a long 8mm drill bit. You need something to knock the porcelain that's stuck in the ground strap out. Most of the time when the plug breaks like that you have to chip away at it with a long punch and use compressed air to blow it out of the plug well or long needle nose ...



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