You are not also having engine noise like a load knock by any chance? But look at the #1 ignition coil connector and fuel injector connector to see that it was not knocked loose by accident? If it looks ok remove the #1 coil and inspect the boot especially on the inside and look for carbon tracking. If you see the boot is bad you may be able to replace just the boot by itself without having to buy the whole coil. If it looks ok put coil back in but do not put the hold down bolt yet. Start the truck and gently pull up on the coil. Do not remove it out completely as you can get shocked and it hurts. If you hear a continouse popping sound then your coil is ok. If you hear nothing then your coil itself is bad. If all that is good remove the spark plug and inspect for damage around the ceramic. Beyonde this point you will need to take to have it diagnose. Other possibilities for misfire could be a bad injector, low compression due to bad valves or piston rings so you would need proper equipement to do the proper testing.
Thursday, June 4th, 2009 AT 7:52 PM