Change spark plugs wires now have a miss 75 coupe stock
#1
Pro
Thread Starter
Change spark plugs wires now have a miss 75 coupe stock
Any tips to troubleshoot beyond checking no bad connections or swapped wires?
I don't have lower shields but used wire dividers and tie wraps to keep off exhaust.
Is there any issue with running wires parallel or crossing certain cylinders that would create a misfire?
I did remove my non functioning ac compressor but left hoses, wires on car side but don't think that is related...
Plugs, cap, rotor, coil all new previous weekends with no issue.
Thanks in advance for any tips.
I don't have lower shields but used wire dividers and tie wraps to keep off exhaust.
Is there any issue with running wires parallel or crossing certain cylinders that would create a misfire?
I did remove my non functioning ac compressor but left hoses, wires on car side but don't think that is related...
Plugs, cap, rotor, coil all new previous weekends with no issue.
Thanks in advance for any tips.
Last edited by pmr2000; 04-15-2017 at 08:37 PM.
#2
If you have a infrared thermometer you can run car for a short time and then check temp of each exhaust (easier if you have headers) the cool one will tell you which isn't firing. I just used this trick myself today. Can't take credit though. Another members idea.
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The Punisher (04-15-2017)
#4
Also check the plugs "clicked" on. Sometimes they get cocked.
Did you go under the motor mounts? Sometimes they get stressed there. I always use a string, pulling the smaller cap end through there, and put dish soap on the boot for compliance.
#6
Pro
Thread Starter
Thanks can i also try disconnecting wires one by one at distributor to see ones that does not make it worse? Hate to redo my tie wraps routing etc
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#7
Instructor
I'm sure your problem will be solved with one of the previous suggestions. But, one of my must-do tests when installing new wires, or just changing plugs, is to measure the resistance of every wire from end to end. Not only does this test the wire, but also the brass clips on each end. Just because they're new, doesn't mean they are working correctly. Also, carbon wires without reinforcement can fail if pulled too tightly.