cylinder 5 misfire issue
#1
cylinder 5 misfire issue
Hi
I own a 2005 Hemi and I am getting a misfire code. I changed spark plugs and coil and I can't get the code to go away. My mechanic tells me that their is no electric power going to the coil. He checked for a wiring problem and everything seems ok. He is now considering changing my computer. I have not noticed any shaking or loss of power just that annoying service engine light!!!
HAS ANYONE EXPERIENCED ANYTHING SIMILAR?
I own a 2005 Hemi and I am getting a misfire code. I changed spark plugs and coil and I can't get the code to go away. My mechanic tells me that their is no electric power going to the coil. He checked for a wiring problem and everything seems ok. He is now considering changing my computer. I have not noticed any shaking or loss of power just that annoying service engine light!!!
HAS ANYONE EXPERIENCED ANYTHING SIMILAR?
#2
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#6
Rick:
Doing the steps suggested by Jason will give you some insight to be able to rule those things out.
Another thought to ponder is are your plug wires OEM? If so, it might be time for a new set.
A more serious issue would be the valve spring issues that the 04 and some 05 Hemis are known for. If you eliminate everything external to the motor, it might pay to pull the valve cover on that side and do a visual inspection of the springs for that cylinder.
If a spring collapses, the valve drops into the motor and the motor is toast.
How many miles on the Hemi? Are you hearing any high pitched upper end sounds from it?
Don
Doing the steps suggested by Jason will give you some insight to be able to rule those things out.
Another thought to ponder is are your plug wires OEM? If so, it might be time for a new set.
A more serious issue would be the valve spring issues that the 04 and some 05 Hemis are known for. If you eliminate everything external to the motor, it might pay to pull the valve cover on that side and do a visual inspection of the springs for that cylinder.
If a spring collapses, the valve drops into the motor and the motor is toast.
How many miles on the Hemi? Are you hearing any high pitched upper end sounds from it?
Don
#7
Sorry it took me so long to respond, I still have the stock wires on it. I had changed the spark plugs about 5,000 miles ago. The truck has bout 160,000 miles on it. I will check the plugs when I git home. Also, isn't there a way to check the coil with an ohm meter? I heard you could do that, or the injector? I also was wondering if the coil is bad and I wanna upgrade to MSD coils, will it make a noticable difference in power and economy? I have heard of people changing the plug wires for the shorty wires too, I found Some 409 Race wires that were 10.4mm. Has anyone tried those? Sorry if I'm gitin outta the thread a bit, but if I change anything I don't like to buy oem.
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#9
Hi
I own a 2005 Hemi and I am getting a misfire code. I changed spark plugs and coil and I can't get the code to go away. My mechanic tells me that their is no electric power going to the coil. He checked for a wiring problem and everything seems ok. He is now considering changing my computer. I have not noticed any shaking or loss of power just that annoying service engine light!!!
HAS ANYONE EXPERIENCED ANYTHING SIMILAR?
I own a 2005 Hemi and I am getting a misfire code. I changed spark plugs and coil and I can't get the code to go away. My mechanic tells me that their is no electric power going to the coil. He checked for a wiring problem and everything seems ok. He is now considering changing my computer. I have not noticed any shaking or loss of power just that annoying service engine light!!!
HAS ANYONE EXPERIENCED ANYTHING SIMILAR?
#10