Ford 4.9l (300 c.i.d.) Hesitation and Startup Fix

A common issue on Ford's 4.9l (300 c.i.d.) I-6 is hesitation and startup trouble. Simply remove the connector to the throttle position sensor and the idle speed controller and clean the terminals. 9 times out of 10 this will solve the issue.

More Videos...


1993 f150 4.9 bad idle / bad throttle response / very rough running
This is a video about me replacing the MAP sensor on 1993 F1 50. In the video I show the numerous things I tried that didn't work and then in the end I showed you the MAp sensor location and how to replace it I also showed you before and after with the engine running. Also! I discovered that replacing the map sensor fixed my hvac problem. It was only blowing out the defrost no matter what setting you had it on. I replaced the map sensor and it fixed it fro some reason.





Ford Hesitation Repair (Ford Technical Service Bulletin)
This video covers the replacement of the throttle body gasket to eliminate a vacuum leak that causes a hesitation.





4.9l I6 Fuel Injection Discussion (And where the Fuel Pressure Relief Valve is)
Just a short video going over various parts of the EFI fuel system, some filter/part numbers and ending with where to find the Fuel Pressure Relief Valve on the Fuel Rail (Pictures) Includes information for Fuel Line Removal Tools, Fuel Filters, etc.





1987 F-150 4.9 inline 6 Rough idle




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