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Dan, Technician
Category: Ford
Satisfied Customers: 23742
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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2002 Lincoln LS v6 manual. Runs very rough when cold &

Customer Question

2002 Lincoln LS v6 manual. Runs very rough when cold & continues to when at normal temp no matter how long you drive. Once hot shut down & restart will sometimes cure problem and it will then run fine until shut down.
Submitted: 1 year ago.
Category: Ford
Expert:  Dan replied 1 year ago.

Hello, my name is***** you already replaced injector and coil the only things left are wiring to injector/coil, PCM, or internal engine problem such as valves. Considering restarting vehicle helps sometimes, this would point toward the PCM. If PCM was problem it would stop firing coil or injector. You will need to monitor injector and coil power/ground during problem. If either of them are losing signal verify wiring between component and PCM are good, then replace the PCM. Let me know if you have more questions or if there is anything else I can do to help .Thanks.