Cylinder #5 misfire
01-23-2013, 04:53 PM
#1
Teching In
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Join Date: Aug 2012
Location: ICT
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Cylinder #5 misfire Hey all, I joined not long ago & haven't really posted much yet. I've got a 2008 GP GXP back in August & just recently it started having loads of misfire in Cylinder #5. It only seems to do this around 40mph or higher, & not at idle. I've pulled that spark plug out and it looks just fine. What could be causing this misfire? Any thoughts, comments, suggestions?
01-23-2013, 06:49 PM
#2
REMOVE and clean your induction system
-MAF spray cleaner(MAF sensor cleaner or electronic component cleaner) and toothbrush, dont touch the actual sensor with anything but the spray
-TB remove and clean using throttlebody cleaner, apply a thin layer of vasaline or die-electric grease to seal proir to re assembly
be sure to reassemble all connections tight and you can apply a little of the vasaline inside any of the vacum lines( look in them you will see an oring in there, lubricate it)
Should take less than an hour
-MAF spray cleaner(MAF sensor cleaner or electronic component cleaner) and toothbrush, dont touch the actual sensor with anything but the spray
-TB remove and clean using throttlebody cleaner, apply a thin layer of vasaline or die-electric grease to seal proir to re assembly
be sure to reassemble all connections tight and you can apply a little of the vasaline inside any of the vacum lines( look in them you will see an oring in there, lubricate it)
Should take less than an hour
01-26-2013, 11:18 AM
#4
Launching!
Join Date: Apr 2011
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REMOVE and clean your induction system
-MAF spray cleaner(MAF sensor cleaner or electronic component cleaner) and toothbrush, dont touch the actual sensor with anything but the spray
-TB remove and clean using throttlebody cleaner, apply a thin layer of vasaline or die-electric grease to seal proir to re assembly
be sure to reassemble all connections tight and you can apply a little of the vasaline inside any of the vacum lines( look in them you will see an oring in there, lubricate it)
Should take less than an hour
-MAF spray cleaner(MAF sensor cleaner or electronic component cleaner) and toothbrush, dont touch the actual sensor with anything but the spray
-TB remove and clean using throttlebody cleaner, apply a thin layer of vasaline or die-electric grease to seal proir to re assembly
be sure to reassemble all connections tight and you can apply a little of the vasaline inside any of the vacum lines( look in them you will see an oring in there, lubricate it)
Should take less than an hour
11-19-2013, 02:15 PM
#6
check your coil packs, i had a missfire on #5, switched it to #1 and it happened again on #1, checked for spark and continuity and replace the one pack... never one issue since
