help!!!!!!!!!!!!!!!!!!!!!!!jerking while accelerating and decelerating

[91GMLS]

checked all the lines and all is good replaced the map sensor and it still jerking at this point im thinking its the speed sensor cause the speed odometer sticks when im slowing down it takes a couple of seconds then it goes down

[MattDoscher]

Give these guys a try: http://www.odometergears.com/product...rquis+90-97/60

I replaced the odometer and tripmeter gears in my '91 Grand Marquis with good results.

Matt

[91GMLS]

i would like to thank everybody who posted on this thread. i found out it was the fuel injectors

[MattDoscher]

How did you determine it was the injectors? Did you clean them? If so how?

[91GMLS]

changed fuel filter and it was dirty so i decided to clean my fuel injectors myself hers a link i followed http://www.youtube.com/watch?v=dp-ECEpN52k