Why is my 1989 ford bronco full size 300 4.9 , 5 speed. Jerking in 1,2,3 not in reverse. I have changed everything but the ecu.? Help
What are your codes? Have you checked the engine and tranny mounts? How is your fuel pressure and flow?
I replaced the gas tank and filter. When I try and give it gas it chokes
But sitting still it runs fine only in forward gears
Only in forward gears does it jerk
Still need codes and fuel pressure and flow.
I don't have tools to get codes sorry
Can it be the map sensor
Go to http://straighttalkautomotive.com/OBD1/ford-OBD-I.html That will show how you can pull them yourself and the code chart.
I fixed it. Check ur fuel filter direction. It sounds stupid. My truck jerked bad because the fuel filter was on backwards
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