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J Hall
383 days ago
Hello, my name is \*\*\*\*\* \*\*\*\*\* I will be glad to assist you with this running problem. If you could be more descriptive about the problem you are having it would help me greatly. When you say the vehicle lurches, exactly what to do mean? Is it running rough, like some of the cylinders are not firing, or does the entire truck shake violently when it is running?
J Hall
383 days ago
Do you still need help with this problem?
Customer
383 days ago
It will idle like it wants more fuel or something the truck would rock to side a bit not missing though. ive changed the plugs and wires, pcv valve, Map sensor have 2 new tanks with the same fuel pumps maybe it's weak? Changed the coil, fuel filter it did improve some then. tonight changed the in line fuel pump in the frame rail. This improved it again I thought it was fixed but still doing it a little. Im thinking maybe egr valve is sooted up or maybe the fuel pressure regulator?
Customer
383 days ago
I'll may be check grounds to the fuel system too
J Hall
383 days ago
Have you checked the actual fuel pump pressure? That will tell you if the pump is working properly.
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Is this free or how much Mechanic's Assistant: It's just a small, refundable fee for a 7-day JustAnswer trial. After that, it's a small monthly membership fee. What is the make/model/year of your car? So I can cancel with...
Is this free or how much Mechanic's Assistant: It's just a small, refundable fee for a 7-day JustAnswer trial. After that, it's a small monthly membership fee. What is the make/model/year of your car? So I can cancel within 7 days? Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far? 89 f250 with 351 windsor. It lurches doesn't idle smooth in park or when put in gear. Mechanic's Assistant: How old is the [transmission](/topics-transmission-ford/)? Have you checked the [brake](/topics-brake-ford/) switch? I changed the air idle control, the map sensor, and something else. Original 3 speed auto transmission 148k miles Mechanic's Assistant: What year is your F250? 89 f250 with 351 windsor Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? Maybe plugs and wires would help who knows