<HR style="COLOR: #666666" SIZE=1>Hey guys I have a 95 F150 351 that runs fine until i get to around 45-50mph to 70mph and then it run real rough.Engine starts to vibrate...If anyone know whats the cause and what the solution is...
I just bought mine the other day and would u know the vibration started at 50...
I love the truck I just hope its not to serious...
Any help would be much appreaciated....
Thanks in advance...RWilliams...

__________________

 

Do all the basic maintenance and see how it does: air filter, fuel filter, distributor cap, clean the throttle body, change the pcv valve, check the vacuum hoses for too much cracking, etc.

 

this is either a tire rotation issue, ujoint issue or you have a loose front end. I would start with the tires and have them rebalanced. if the vib comes back then look into your Ujoints they may only need greased or replaced. front end would be last on my list.

 

thanks for the help, I will go down the list and see what happens thanks...

 

Check tires for flatness as well. Just had a swollen area (bubble) on my Aerostar and had a bad wobble and shake at speed.