miss at first start up
#1
#2
#3
RF Veteran
iTrader: (1)
#5
2 things
1 / replace the coil pack , they do not last forever , sounds like 1 of the coils in the pack is failing
2 / run a full can of seafoam mixed with a entire tank full of 91 octane fuel through the engine
you probably have some significant carbon buildup in cylinders 5 and 6
when you use antiseize on spark plug threads , make sure you only use the COPPER antiseize and not the aluminum product
the copper antiseize aids in better electrical conduct between the spark plug and the aluminum cylinder head
1 / replace the coil pack , they do not last forever , sounds like 1 of the coils in the pack is failing
2 / run a full can of seafoam mixed with a entire tank full of 91 octane fuel through the engine
you probably have some significant carbon buildup in cylinders 5 and 6
when you use antiseize on spark plug threads , make sure you only use the COPPER antiseize and not the aluminum product
the copper antiseize aids in better electrical conduct between the spark plug and the aluminum cylinder head
#6
RF Veteran
iTrader: (1)
#7
#8
RF Veteran
iTrader: (1)
Davis(screamin' demon) and Accel coils have had good reviews.
That "ticking" could also be a bad spark plug wire or even the coil arcing.
Tonight or in a dark garage start engine and open the hood
Make sure it is good and dark, then watch spark plug wires and coil for arcing
Focus on #6 first as that's the misfiring cylinder, also #2 since that shares #6 coil
DO NOT reach for it, lol, you WILL get a bad shock, use a flashlight to see where it is then turn off the engine before checking the wire
That "ticking" could also be a bad spark plug wire or even the coil arcing.
Tonight or in a dark garage start engine and open the hood
Make sure it is good and dark, then watch spark plug wires and coil for arcing
Focus on #6 first as that's the misfiring cylinder, also #2 since that shares #6 coil
DO NOT reach for it, lol, you WILL get a bad shock, use a flashlight to see where it is then turn off the engine before checking the wire
#11
RF Veteran
iTrader: (1)
I guess you are down to mechanical issue.
I could be bad lifter, hydraulic lifters have a spring and a valve inside, either can fail, this can cause ticking at lower RPMs, lower fuel/air intake(intake valve) or not all exhaust gases are cleared(exhaust valve), because valve isn't opening all the way, so you get misfire or partial misfire.
When RPMs increase the oil pressure goes up and lifter is fully expanded.
Warmer weather makes for thinner oil to start out with.
You could try a compression test, or pull valve cover on that side and test push down pressure on those lifters compared to the others on that side.
Also turn engine over manually to check "lift" on each push rod/rocker
Ticking could also be a fuel injector, although more of a long shot with description, i.e. it most likely wouldn't get better at higher RPMs it would get worse
I could be bad lifter, hydraulic lifters have a spring and a valve inside, either can fail, this can cause ticking at lower RPMs, lower fuel/air intake(intake valve) or not all exhaust gases are cleared(exhaust valve), because valve isn't opening all the way, so you get misfire or partial misfire.
When RPMs increase the oil pressure goes up and lifter is fully expanded.
Warmer weather makes for thinner oil to start out with.
You could try a compression test, or pull valve cover on that side and test push down pressure on those lifters compared to the others on that side.
Also turn engine over manually to check "lift" on each push rod/rocker
Ticking could also be a fuel injector, although more of a long shot with description, i.e. it most likely wouldn't get better at higher RPMs it would get worse
#12
Thread
Thread Starter
Forum
Replies
Last Post
derrin410
SOHC - 2.3L & 2.5L Lima Engines
2
05-26-2008 09:33 AM