Shudder at specific rare scenario
#1
Shudder at specific rare scenario
I have a shudder that happens when turning right at a grade of about 10% while accelerating, and only on that condition. While making a routine drive somewhere, there's a turn with that one condition. Every time it shudders. It doesn't bother me because it happens so rarely, so I'm just curious more than anything if someone knows why.
#2
I have a shudder that happens when turning right at a grade of about 10% while accelerating, and only on that condition. While making a routine drive somewhere, there's a turn with that one condition. Every time it shudders. It doesn't bother me because it happens so rarely, so I'm just curious more than anything if someone knows why.
#4
#5
My axle is a 3.55 non-LS diff. I replaced end links a couple months ago. I'll retorque those and see. Problem is I move this weekend so I won't have the exact spot to reproduce the shudder. It only matters to me if it's a sign or symptom of a larger problem. Any further advice is appreciated.
#7
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#8
#9
What's strange is the previous owner changed the plugs about 10k miles ago but I haven't yet confirmed if they are Motorcraft plugs, if he changed the COPs, and if those are Motorcraft as well. I've heard our trucks can be picky about those parts.
#10
That problem shouldn't show up in relation to turning. Generally, the spark plug/COP misfire rears it's head above 40mph once it has shifted into O/D and the torque converter is locked. Then when you apply throttle to accelerate, but not enough to cause a downshift, the truck will shudder under the increased load. It's a high-load, low RPM instance that isn't apparent much in the low gear or low speeds unless it's multiple cylinders misfiring.
#11
That problem shouldn't show up in relation to turning. Generally, the spark plug/COP misfire rears it's head above 40mph once it has shifted into O/D and the torque converter is locked. Then when you apply throttle to accelerate, but not enough to cause a downshift, the truck will shudder under the increased load. It's a high-load, low RPM instance that isn't apparent much in the low gear or low speeds unless it's multiple cylinders misfiring.
#13