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James, Ford Technician
Category: Ford
Satisfied Customers: 3546
Experience:  Ford Senior Master Tech, Ford gas and diesel expert, ASE Certified
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2006 Ford Taurus was missing, jerking, losing power. Ran the

Customer Question

2006 Ford Taurus was missing, jerking, losing power. Ran the codes at AutoZone and it said cylinder 2 was not firing and cat converter failed. My husband changed spark plug #2 which was fouled. Did a bit better, and then started all same symptoms. The check engine light did go off for a time after changing the spark plug, so I wonder if the cat convertor failure was a false reading. Drove fast on a freeway and check engine light came back on and has been on.
JA: Diagnosing the correct check engine code is the key to getting a quick fix. Fortunately, the mechanics we work with have tons of experience dealing with this type of thing. Are you hoping to fix this yourself?
Customer: No, but I don't want to get a catalytic convertor if that is not the real problem.
JA: OK! The Ford Mechanic will help you with the diagnostics so you are sure to get this fixed right.
Customer: Thanks
JA: Is there anything else important you think the Ford Mechanic should know about your Ford?
Customer: Before changing the spark plug, changed the PVC something or other. My husband replaced all spark plugs, wires, and thing the wires go into about a year ago. It has 190,000 miles on it.
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Ford Mechanic about your situation and then connect you two.
Submitted: 5 months ago.
Category: Ford
Expert:  James replied 5 months ago.
Hello, do you happen to know what code number was set for the converter?
Customer: replied 5 months ago.
No, I no longer have the print-outs for that.
Expert:  James replied 5 months ago.
The fouled spark plug could have cause the convertor code from being fouled. If that code doesn't come back I would think the misfire was the reasoning for the code.
Customer: replied 5 months ago.
But it is still doing it! That doesn't answer the problem.
Expert:  James replied 5 months ago.
You said the check engine light went out. I thought that meant the misfire was gone. If the check engine light is back on you need to retest for codes and see what codes are back on. If I know what the codes are I can be more specific with assisting you.