Backfire issue
#1
Backfire issue
Hi,
Looking for some info on which type of Spark Plug should I be using in my cossie and what gap they should be.
I have a 1992 sierra 4x4, running 330bhp, stage 3 chip. I only bought it a couple of weeks ago and decided to get a service done. But I think he may have put different plugs in it, not sure. The mechanic doesn't know why it's backfiring, checked all the usual, more of a thumping sound through the exhaust now and then, sometimes loud! So I just want to eliminate the plugs. Any help would be great as it's annoying the hell out of me.
Looking for some info on which type of Spark Plug should I be using in my cossie and what gap they should be.
I have a 1992 sierra 4x4, running 330bhp, stage 3 chip. I only bought it a couple of weeks ago and decided to get a service done. But I think he may have put different plugs in it, not sure. The mechanic doesn't know why it's backfiring, checked all the usual, more of a thumping sound through the exhaust now and then, sometimes loud! So I just want to eliminate the plugs. Any help would be great as it's annoying the hell out of me.
#3
I used the 071's , found they were crap changed to new AGPR12PP8, what a difference, way better.
The thumping sound is probably hunting, ie missing a beat, have you got decent leads, and coil(group a) ?
tabetha
The thumping sound is probably hunting, ie missing a beat, have you got decent leads, and coil(group a) ?
tabetha
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28-09-2015 09:04 AM