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Ford F-150 4.2 liters engine - bad drivability issues
Hi,
I have been working on this car for some time now with different t symptoms lead to another after cure. This car had engine replacement, with transmission.
Initially car find it difficult to move from rest and when it become hot, car will shut off. Many parts were threw at the car by another job, such us fuel pump changed, coil changed. Fuel pressure regular changed, pcm changed. But the car has bad driving behaviors.
For example-:
The speedo meter jumps and reaches last limit of it gauge. Code set is P1270,
Car can’t move above 2 rpm, when you try to force it, the fire will die off or when you try to brake, the fire will die off, sometimes when you flood the accelerator pedal, the engine sound goes down, you won’t hear the engine working, but when you take your foot off from the pedal a little, the sound will come back, MAF was changed but still
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