2001 - 2004 Mercury Mariner PCM Repair
This is a repair service for the engine computer or Powertrain Control Module, (PCM) from a 2001, 2002, 2003, or 2004 3.0L V6 Mercury Mariner that has been damaged by failed ignition coils and spark plugs. This is the most common problem with the Mercury Mariner PCM and is often indicated by one or more of the following diagnostic trouble codes: P0351, P0352, P0353, P0354, P0355, P0356. The engine computer is often referred to as the ECM (Engine Control Module), ECU (Engine Control Unit), or simply as the computer.
**If the PCM has been damaged by a failed ignition coil, then all 6 coils must be changed at the same time as the PCM. Based on extensive experience with these computers, we strongly recommend genuine Motorcraft coils. There are many counterfeit coils on the market that claim to be Motorcraft, so be sure to order from an authorized Ford/Motorcraft distributor. We have several sources that we can recommend for these coils. Please contact us at 800-547-2049 for recommendations.**
Our no-hassle warranty covers your repair for a full year. If the repair fails anytime within a year, we will repair the item again. In the rare occasion that the item is not repairable, we will either replace the circuit board entirely or refund the cost of the repair, at our discretion. See Details...