Misfire deteccted
#11
09-01-2009, 11:07 PM
Hall Of Fame
#12
09-03-2009, 11:09 PM
Throwing p0302 in my 2002 4.7l. I have replaced the plugs and the coil for that cylinder. I unfortunately put in platinum plugs, so now I will be buying new plugs. Also when starting if I get in and turn the key right away, as opposed to turning to run and waiting a few seconds, it cranks over a lot longer. It also idles rough and is slow to respond to the gas first thing in the day. Have been getting the misfire code before the plugs were replaced, after, and after the coil was replaced. Any help would be great.
Note: Just plugged in the noid light and it seems the electrical side is fine.
Note: Just plugged in the noid light and it seems the electrical side is fine.
It then ran like crap, sputtering like crazy. I checked everything, spark to each cylinder, double checked the gap, everything. Cleaned up, regapped and put the old Autolite plugs back - it runs fine.
These Autolite Platinum plugs are CRAP.
EDITED TO ADD: it also threw up the Check Engine light, I believe the code was P0302 as well.
#13
09-03-2009, 11:47 PM
Champion
#14
09-04-2009, 01:20 AM
Platinum is only good as the best color ever to paint your Durango. It should never be used as the sparkplug of choice.
Some get away with it, but some live when playing russian roulette too. Want to be the sorry chap to catch the bullet? Avoid the plats.
IndyDurango
Some get away with it, but some live when playing russian roulette too. Want to be the sorry chap to catch the bullet? Avoid the plats.
IndyDurango
When I went to NAPA, that's what they gave me when I asked for the 3923 plugs. Tomorrow they go back, and hopefully they have the non-platinum ones.
Oh and BTW - I posted on here a while ago about the Halo plugs - just for fun I reinstalled and ran them again for a test - gas mileage decreased by about 1 mpg.
#15
09-04-2009, 01:23 AM
Champion
#16
09-06-2009, 12:00 AM
Hall Of Fame
Mine IS painted Platinum!
When I went to NAPA, that's what they gave me when I asked for the 3923 plugs. Tomorrow they go back, and hopefully they have the non-platinum ones.
Oh and BTW - I posted on here a while ago about the Halo plugs - just for fun I reinstalled and ran them again for a test - gas mileage decreased by about 1 mpg.
When I went to NAPA, that's what they gave me when I asked for the 3923 plugs. Tomorrow they go back, and hopefully they have the non-platinum ones.
Oh and BTW - I posted on here a while ago about the Halo plugs - just for fun I reinstalled and ran them again for a test - gas mileage decreased by about 1 mpg.
The Halo is only an idea that was proven wrong and I also talked about their use a while ago. Looks like my hypothesis was correct!
