6.0 PS 2004 Excursion 158k miles...
I need help narrowing down whats going on before I fork out too much money on the wrong thing. OK, I had an injector(#7) going out and I decided to try Hotshot Secret because they say (I called) it's designed for 6.0 injectors and 9 out of 10 are success stories! Clearly, I am that 1!! After $80 of diesel went out my exhaust, the injector was replaced. I was told the new injector was bad so they put in another one. Two weeks later, I get a call that it's not running right, skipping. I go and drive it and it's shaking/vibrating. The shop doesn't have the scan to check the cylinders, so they want to take half the engine out to test the compression and I said NO WAY! I got in and drove an hour home.
Here's my clues (symptoms)
shaking when accelerating...I release the gas pedal and immediately press it again and it stops until the next gear change. It runs ok around 65-70mph but you still feel a vibration.
Rough idle!!! My 3 year old says I'm shaking his head HA HA!
Loss of power...3 mornings ago, it just didn't want to back out of the driveway. I got about 25' and that was it. Pulled back down and cut it off. Then tried again and I made it, slowly. Now I turn it "on" not the motor for about 20 seconds (twice) and fire her up and back up.
Oil, oil filter (2nd change since injector replaced) and fuel filters changed 2 days ago. I could still feel the shake but not as bad and i could accelerate through the vibration during gear change. Not yesterday or today.
I've tried to blow it out...pushed the gas all the way to the floor...very little black smoke.
I can smell diesel when I'm driving but I haven't noticed losing fuel. It's not running hot.
It feels like there's a blockage or something. I really don't think it's a cylinder, call it a feeling or something
I need some ideas, please! Thanks for reading. Let me know if I left out any important details...