shanonnew
Junior Member
Hello all. Save everyone from the long story but hoping someone has solved for this before the dealership tries and take me for more money without diagnosing it.
Truck seems to shudder when accelerating uphill, when accelerating to get to hwy speeds, and when in cruise control. RPMs are around 1800 (and over) to experience this and can replicate the issue easily. Shudder is slight, easily noticed but does not cause any issue with driving. If I release the pedal or push to accelerate through it then it will stop shuddering and return to a very smooth drive. In all honesty the truck drives very strong and smooth other than this one issue.
I replaced the Throttle Body and air intake sensor. No improvement in the shudder. Rear strut assembly replaced, front ball joints and wheel beerings replaced, and tires rotated and balanced. Just doing everything possible to eliminate the easy stuff upfront that I knew needed done anyways. Decide to get a diag from the dealer which is when things started to go down a rabbit hole.
Dealer was/is convinced it is the engine. Mind you I was not throwing any error codes and would not necessarily describe it as a "miss" definitely more of a shudder. They told me it was cracked boots on the coil packs, replaced all boots and packs, and replaced the spark plugs. Issue still exists, seems almost worse. They noted that the machine did not pick up a miss and there were no carbon tracings on the plugs. At this stage I pressed for further diag and to consider the torque converter. They continue down the path of the engine and did the cylinder balance test, injector kill test, and inspected the balancer on the crankshaft - all good/pass - they were surprised, I was not. They are still almost defiant at this stage about considering the torque converter. Which fine, I may be wrong, but so far they have charged me $2,000 for diag and parts that ended up having nothing to do with the issue.
So, checking here to see if anyone experienced the shudder before and determined that something OTHER than the engine caused it. If so, what the final solve for it? All help appreciated. Thx!
Truck seems to shudder when accelerating uphill, when accelerating to get to hwy speeds, and when in cruise control. RPMs are around 1800 (and over) to experience this and can replicate the issue easily. Shudder is slight, easily noticed but does not cause any issue with driving. If I release the pedal or push to accelerate through it then it will stop shuddering and return to a very smooth drive. In all honesty the truck drives very strong and smooth other than this one issue.
I replaced the Throttle Body and air intake sensor. No improvement in the shudder. Rear strut assembly replaced, front ball joints and wheel beerings replaced, and tires rotated and balanced. Just doing everything possible to eliminate the easy stuff upfront that I knew needed done anyways. Decide to get a diag from the dealer which is when things started to go down a rabbit hole.
Dealer was/is convinced it is the engine. Mind you I was not throwing any error codes and would not necessarily describe it as a "miss" definitely more of a shudder. They told me it was cracked boots on the coil packs, replaced all boots and packs, and replaced the spark plugs. Issue still exists, seems almost worse. They noted that the machine did not pick up a miss and there were no carbon tracings on the plugs. At this stage I pressed for further diag and to consider the torque converter. They continue down the path of the engine and did the cylinder balance test, injector kill test, and inspected the balancer on the crankshaft - all good/pass - they were surprised, I was not. They are still almost defiant at this stage about considering the torque converter. Which fine, I may be wrong, but so far they have charged me $2,000 for diag and parts that ended up having nothing to do with the issue.
So, checking here to see if anyone experienced the shudder before and determined that something OTHER than the engine caused it. If so, what the final solve for it? All help appreciated. Thx!