Just thought I’d share my experience and few pictures.
Just tried to replace the fuel pump today on a 2016 NV passenger 5.6L. Could not reach to detach the fuel line and power connection till I dropped it some. Was a pita.
Had lugging/stalling whenever I hit the gas…especially if there was a downshift. Cold temperatures seem to make things better. This had been occurring since last summer.
However, when the lugging started, the fuel trim would just go to zero and the front A/F ratio sensors didn’t show much either….until recently when it got bad. The fuel trim and A/F ratio would go through the rough when it happened.
Had a new fuel pump shipped in (nobody has one in Alaska) and had the tank dropped before realizing the new pump had a broken fuel line inlet.
However, after seeing how much sand and dirt there was in the bottom of the tank and in the filter for the pump, i just cleaned the tank out really well, removed the old clogged filter, and it runs beautifully.
Sending the new pump back and hopefully I will be fine without the filter
.
Oh, the dirt was from one of my kids shoving it down the fuel filler hole
.
I also replaced the original NGK Laser Iridium spark plugs with NGK ruthenium a few weeks back. Rutheniums were the same price as the iridium IX.
The van had 108k miles plus LOTS of idle time.
The old ones weren’t too bad. They had a gap of about .046. Gap of new ones are .044. It does run a little better with the new plugs.
Just tried to replace the fuel pump today on a 2016 NV passenger 5.6L. Could not reach to detach the fuel line and power connection till I dropped it some. Was a pita.
Had lugging/stalling whenever I hit the gas…especially if there was a downshift. Cold temperatures seem to make things better. This had been occurring since last summer.
However, when the lugging started, the fuel trim would just go to zero and the front A/F ratio sensors didn’t show much either….until recently when it got bad. The fuel trim and A/F ratio would go through the rough when it happened.
Had a new fuel pump shipped in (nobody has one in Alaska) and had the tank dropped before realizing the new pump had a broken fuel line inlet.
However, after seeing how much sand and dirt there was in the bottom of the tank and in the filter for the pump, i just cleaned the tank out really well, removed the old clogged filter, and it runs beautifully.
Sending the new pump back and hopefully I will be fine without the filter
.Oh, the dirt was from one of my kids shoving it down the fuel filler hole
.I also replaced the original NGK Laser Iridium spark plugs with NGK ruthenium a few weeks back. Rutheniums were the same price as the iridium IX.
The van had 108k miles plus LOTS of idle time.
The old ones weren’t too bad. They had a gap of about .046. Gap of new ones are .044. It does run a little better with the new plugs.
