Shuddering around 40-50 MPH LOW RPMS
 

truck or engine shudders at low rpms around 40-50 while trying to lightly accelerate . If I step on it accelerates smopthpy. Doesn't happen any other time. Anyone have any solutions ?

Misfire. I have same similar issues. If you haven't done plugs do that and change boots/springs.

If you have then you need to chase down a bad coil................

is this what you did to fix it?

I did plugs about 20k miles ago, all the misfires went away. They are occurring again and I suspect that I need to change my springs/boots and check the coils, but I'm waiting for warmer weather.

How about some vehicle info and service history? We'd be able to give you a little bit more accurate help.

Plugs, fuel filter, clean MAF and Throttle body.

:deadhorse: Sorry I had to. Seams like there is a new thread everyday with this exact same title lol

It's a 2005 lariat 5.4. I bought it with a few different issues with plans to fix it . I bought it for a good price from a family friend. I'll change plugs this week and clean the MAF and tell you guys how it went.

When you change the plugs also change the boots and springs on the coils.

Do those come separate from the COP?