After using the SeaFoam to cure my engine knock, and a very loud and expensive sounding start up, I have now developed a knock. I triggered a #6 misfire (P306) but it went away. I had two mechanics (back street guys, unsure of qualifications) listen to it and they both said it's not a lower end knock.

After reading this forum, I think I may have one of two different problems.
1. Bent something in the valve train. Possibly a pushrod, valve, lifter or something else.
2. bent the connecting rod to #6 piston

Questions are do I need to pull the engine to get the oil pan off? I'm thinking about first, pulling the valve cover to see if I have any play in any of the pushrods. If not, I'm suspecting I bent a rod. Can I do a compression test to indicate a bent rod?

I don't have any easy way of pulling the engine, that's my problem.

 

you should not have to pull motor to get oil pan off. what year truck? 4wd??. if your motor in knocking dont put anything in there. she will probably need something replaced.

 

Mine is a 2000 2WD 4.2V6.

 

it wont be fun but you shouldnt have to pull the motor.pick up a haynes manual it has all that info.

 

Thanks.

 

Yes,you will have to pull the engine to remove the oil pan.If it were 4wd,no,you wouldn't.