Hi, I have a DB2 mechanical injection pump. Recently the engine has started to sometimes stall when I lift my foot from the accelerator, like when coming to a stop sign. Does anyone have any ideas what could cause this?
Thanks
Hi, I have a DB2 mechanical injection pump. Recently the engine has started to sometimes stall when I lift my foot from the accelerator, like when coming to a stop sign. Does anyone have any ideas what could cause this?
Thanks
1996 GMC 3500 Crew Cab, 4L80E, Single Rear Wheels, Houston TX. Got rid of the DS4 - running with a DB2
Check the lift pump operation and the fuel filter.
The Constitution needs to be re-read, not re-written!
If you can't handle Dr. Seuss, how will you handle real life?
Current oil burners: MB GLK250 BlueTEC, John Deere X758
New ride: MB GLS450 - most stately
Gone but not forgotten: '87 F350 7.3, '93 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6, '90 MB 350SDL, Kubota 7510
I belileve the lift pump and filter are good. Both are fairly new.
I have a fuel pressure guage on the A pillar. It reads the lift pump pressure. I have 5psi with the engine running when the stalling occurs. On hard accelleration the pressure will drop to about 2psi then recovers back to about 4psi when going at a steady speed.
Thanks for the reply.
1996 GMC 3500 Crew Cab, 4L80E, Single Rear Wheels, Houston TX. Got rid of the DS4 - running with a DB2
If you're reading the pressure after the filter, you'r fine. If not, it's still worth checking. It only takes one bad load of fuel and a couple of minutes to clog.
The Constitution needs to be re-read, not re-written!
If you can't handle Dr. Seuss, how will you handle real life?
Current oil burners: MB GLK250 BlueTEC, John Deere X758
New ride: MB GLS450 - most stately
Gone but not forgotten: '87 F350 7.3, '93 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6, '90 MB 350SDL, Kubota 7510