Instrument cluster jumps around and vehicle start to run rough

Hello, my initial thought goes to a possible issue with the PSOM -- the programmable speedometer odometer module -- only because I've run into something just like this years ago working for a Ford truck dealership. We were focused on timing and the SPOUT -- for ignition spark -- and after a few weeks of messing about with a truck, we finally found that the PSOM was causing problems with engine performance. This isn't something you can guess at, and also isn't something that is readily repairable. Just a thought of something I've experienced. What needs to be done is proper testing of fuel, spark, air, ignition timing and emissions components. A break-out-box may be needed to check components and wiring. You mention all these "new" components -- but what happened that made you have to replace them?

Come we can check your car for free if you do the work here. We are in 10530 Carmenita Rd. Whittier, 90605. Tell the guys you come for Repair Pall