My Bronco runs great for a while, then starts to cough, sputter and dies. I have replaced the motor, the carbuerator, fuel pump, distributor, ignition module, coil,cap, rotor, fuel filter, plugs & wires. I am ready to trash it but my wife really loves it. Help!

 

Is it running hot?

 

We need LOTS more info. What engine? How long has it been doing this? Did any of the repairs make it better?

You replaced the *motor*?

 

Assuming you bought a used complete engine from a junkyard, did you swap over all the smog related parts from your old engine, or use the onboard computer that was used with the truck that the engine came with?


Everything today (after 1979 on cars, after 1980 on trucks & E-vans) depends on calibration codes. When buying a used engine, it IS imperitive to get the computer that went with the engine originally. There are over 700 different calibration codes used in the 1980's. It's very difficult to get even one piece of smog equipment without the calibration code. Swap in another engine without swapping the smog crappola, or swapping computers is a nightmare in the making!

 

Thanks for the input. I will check this