Big Red Suburban
08-11-2004, 22:28
I just got back from the Lake of the Ozarks and had some trouble with my Suburban while I was there and on my way home. It stalled maybe 6 different times throughout the trip (always after it was warmed up). It would always fire back up though. Also, every time it stalled, the engine was at an idle. When I stayed in the throttle running down the highway, I didn't have any trouble. OPS has just been replaced a month or so ago. I replaced the lift pump after I got home hoping to cure the problem, time will tell. Could this be a case of a failing lift pump? Or does it seem more like the FSD is failing? The old lift pump was putting out just under 4 psi and the new one is right at 4 psi. The new one is much louder though, I can hear it in the truck while the engine is running!
FYI, just prior to my trip I installed Kennedy's 3.5" exhaust and chip. Wow, it drives like a new truck. Next, I need to install the high-pop injectors...
FYI, just prior to my trip I installed Kennedy's 3.5" exhaust and chip. Wow, it drives like a new truck. Next, I need to install the high-pop injectors...