When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
The other issue with my pop's 87 6.9 4 speed is that when you lift off the pedal a bit, it is likely going to get to surging/lurching. Could this be a severely loose timing set up? seems like it almost feels equal to a super slack flappin' timing chain with broke tensioner would feel...
Brent
The problem was fuel delivery related.... Yesterday I installed a rotary type lift pump, bypassing the mechanical. 10 new feet of 5/16th line and his surging is gone. Overall from idle to pulling load, the truck is 100% smoother now.
Thanks...
Brent