Good morning, gents.
I have not looked at this vehicle yet, so I'm relying on the information provided to me.
My neighbor is experiencing a rough start on cold start only. The car turns over, but does so "roughly". Subsequent starts are without a hitch, unless the vehicle has sat for a while. I immediately thought perhaps she has a leaking injector, but according to her, the shop (not sure if it's the dealer or indy) tested them and found nothing abnormal. They did find that cylinders 2 and 4 are showing an occasional misfire (no CEL though), they swapped plugs and coil packs between cylinders and found no difference. I'm not entirely sure what all they did to remedy outside of a fuel system cleaning (imagine that...) but she paid them a cool $1k for a fix that didn't fix the issue. She did acknowledge that the problem did subside for a little bit after the shop visit, but has returned to its original state (a few weeks have gone by) and wants to find the fix rather than continue driving it like it is. I'd like to give he a hand, but my schedule is packed for the foreseeable future so at the least I can do some online investigating for the time being.
Where would you start to troubleshoot the issue?
I have not looked at this vehicle yet, so I'm relying on the information provided to me.
My neighbor is experiencing a rough start on cold start only. The car turns over, but does so "roughly". Subsequent starts are without a hitch, unless the vehicle has sat for a while. I immediately thought perhaps she has a leaking injector, but according to her, the shop (not sure if it's the dealer or indy) tested them and found nothing abnormal. They did find that cylinders 2 and 4 are showing an occasional misfire (no CEL though), they swapped plugs and coil packs between cylinders and found no difference. I'm not entirely sure what all they did to remedy outside of a fuel system cleaning (imagine that...) but she paid them a cool $1k for a fix that didn't fix the issue. She did acknowledge that the problem did subside for a little bit after the shop visit, but has returned to its original state (a few weeks have gone by) and wants to find the fix rather than continue driving it like it is. I'd like to give he a hand, but my schedule is packed for the foreseeable future so at the least I can do some online investigating for the time being.
Where would you start to troubleshoot the issue?