Redmanff
Member
- Joined
- July 7, 2001
- Messages
- 14
- Reaction score
- 0
- City, State
- Roscoe, IL
- Year, Model & Trim Level
- 92 XLT
I have a 1992 Ford Explorer that has a definite knock whenever I accelerate with my explorer. After about 25 minutes of driving, or after it warms up and then is shut down and restarted the knock diminishes greatly, but is still present. I have brand new heads on (20,000 miles) and 120,000 on the engine itself. I thought it might also be a low end knock, but tried running 20W-50 oil with hardly any change. I know the lifters and pushrods are ok so now I am possibly thinking of replacing the timing chain and tensioner. I also have a problem with it pinging under load--so this makes me wonder if the chain is loose or maybe even jumped a gear??? Never done this before, is it difficult? Any help would be greatly appreciated.
