Aug 082011
 

Was running a little sluggish and thought I was running out of gas. Since then I’ve changed Fuel filter, Plugs, Wires, Distributor, Rotor cap, Coil and now the TFI module. Still slightly misses and has a pinging sound

  One Response to “1989 Ford E150, 4.9l 6cyl”

  1. Well, First off anytime you hear pinging this is an indication of improper ignition timing or low octane fuel. Low octane fuel can be cheap/bad/contaminated gas. I would try a bottle of Octane booster first and then buy some higher octane fuel at a different fueling station than you have been using and see if that doesn’t take care of it before going any further.

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