cyl 3 miss

[jawa]

as some of you from ass know. IM having a miss under hard acceleration at higher rpm. i changed out the coils and plugs. it was tuned for the trailblazer injectors. IM still stumped on what it is. IM starting to lean twards the injectors. any insight would be kindly accepted

[xXManwhoreXx]

Still think your just washing out cyl 3 at wot from the injectors not being tuned for your car

[Redog]

Do you have Trailblazer injectors?

[jawa]

yes and i had it tuned for them at ass by cliff

[Papa Rad17]

yes and i had it tuned for them at ass by cliff

I thought you had the 3500 injectors in... O.o weird its still missing after the tune eh?

[Redog]

Is the number 3 wire arcing or grounding out anywhere? Is it loose on the plug itself?

My car was missing like crazy and I couldn't figure out why. I was playing around under the hood one day and noticed the boots were loose on the plug. Swapped the wires and it's been good, except for the miss at exactly 2600 RPM's cruising speed

[xXManwhoreXx]

Pull the plug and take pictures of it the sparkplugs will tell all

[a.graham52]

try replacing the wire too. that will rule out the ignition systme at this point (coil/plug/wire). try just swaping the wire to a nother cylinder and see of the skip follows. if your sure the plug is good, then at this point if the skip doesnt change its problem fuel or compression related.

[fisdad]

It may be as simple as a fouled out plug if you didn't change them during the swap. Try the Autolite plugs next time. I've had nothing but good things to say about them and they are only $2.50 each.

[jawa]

i swaped the plug with cylinder 2 at ass no effect

[jawa]

im gunna try wires today

[MMGT1]

When you do, as asked, get a good shot of the pulg for us if you can. I am very good at reading plugs bro...

[jawa]

http://i993.photobucket.com/albums/af58/jawa_x30/20120625_142707.jpg



http://i993.photobucket.com/albums/af58/jawa_x30/20120625_142738.jpg

[jawa]

well i changed the wires today. and that solved the issue

[xXManwhoreXx]

Srsly....

Edit, spark plug looks good though.. You can see small indicators of it being submerged into a rich stroke though

[jawa]

yea it looks like that probably because it was missing

[xXManwhoreXx]

Yep

[jawa]

well i looked into the offending wire and found it was split on the inside

[nicothehut]

Wire #3 failed in the same way last winter on mine too.