Join Date: Nov 2019
Location: Coral Springs, Florida
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I think I need a new injector???
Hello all. I'm new to this forum. Thanks in advance for any help. I have a 2001 F250 7.3 with 380,000 miles. The truck has been converted to run on veggie. Since 2011, I have over 160,000 running successfully on Veggie. This is not a veggie post but I wanted you to have the facts in case this plays into my issue. About 2 weeks ago, I was on the highway at about 70 mph. All of a sudden, the truck started vibrating hard. I thought suspension but I was wrong. I got off an exit and stopped at a gas station. While idling, the truck continued to vibrate. I drove it home at about 45 mph. Lots of white smoke out of the tail pipe. A few days later, I opened the drivers side valve cover. Saw a severely bent pushrod on the forward most valve. Picture attached. I replaced the pushrod and put the engine back together. Now before you tell me what an idiot I am, I already know it. I arrogantly thought I solved the mystery without realizing that there is a reason for the pushrod to bend that I had not addressed. When I started the engine, it continued to run like crap and vibrate. A few days ago, I took off the (Drivers side) valve cover again expecting to see a bent pushrod. Nope, it was straight. I checked all of the other pushrods, rocker arms, and springs (as much as I could see). I started the engine and all of the rockers were moving well, all of the rods were moving well, and all of the springs looked good. The engine still ran like crap. Yesterday, I took off the passenger side valve cover. All components were as they were supposed to be and moved properly. This morning, I watched some Youtube videos. A suggestion in one of the videos was to start the engine and remove the injector plugs one by one to see if I have a bad injector. I did that test and the drivers side forward injector was the only one that didn't change the engine performance when unplugged. It is obviously no coincidence that the injector is not working properly in the same position where a rod bent. So, rough running, lots of white smoke, bent rod, non working injector. Before I do the simple (and maybe stupid) thing of simply replacing an injector, is there anything I should look at or do to follow good mechanical methodology? Should I replace the injector or have it rebuilt? Should I remove all of the injectors and have them tested and replace o rings? Thanks a million for any suggestions.