Attention: TDR Forum Junkies Have just under 200k on my '03 SO. Very very very dependable and almost no problems in 15 years. About two weeks ago I started to notice a loud whining, which to me sounded like a fuel pump noise. Truck ran fine, but brought it into the shop for regular maintenance and a drip from the trans. They said they were familiar with the FASS, and sometimes they just are loud. But this was a sudden change.
Did basics and oil change, replaced the trans pan gasket and neutral safety switch. Also replaced batteries about a month ago. Otherwise no problems.
When I picked up the truck from the shop, the next morning it felt like fuel starvation and surging. Noticed a check engine light and got a P-0148 code, Common rail fuel delivery. On the free way it sputters and cuts out at about 65mph and then runs fine when I back off the throttle. Seems like a blockage or starvation under medium to full throttle.
After purchase of the truck, it seemed like a future weak point was the lift pump, so I put in a FASS unit as a pre-emptive measure and also to avoid having to swap to in tank pump at a later point. This unit easily has 150k and 15 years on it with no problems. Ran like a champ, until just recently when it got very loud. I change the filters regularly and run good fuel.
What is the realistic service life (normal duty) of a FASS unit and is there a way to clean/maintain it? At this point I'm satisfied I've gotten my money's worth, but just wondering what I else should look at. I'll check the fuel filter, but seems coincidental that the FASS starts making noise and then I get the P-0148 code, or is it something simple my mechanic may have done? I don't mind replacing the unit if necessary, but it might be something easy that can be addressed with a cleaning. The unusual noise is what makes me suspect the FASS initally. No leaks, no fuel smell. Normally you'd hear it on startup but not while driving. Recently it could be heard in normal driving when not accelerating.
Could this also be an FCA issue?
I'm not a real wrench, but don't mind getting my hands dirty. Any help is appreciated.
Did basics and oil change, replaced the trans pan gasket and neutral safety switch. Also replaced batteries about a month ago. Otherwise no problems.
When I picked up the truck from the shop, the next morning it felt like fuel starvation and surging. Noticed a check engine light and got a P-0148 code, Common rail fuel delivery. On the free way it sputters and cuts out at about 65mph and then runs fine when I back off the throttle. Seems like a blockage or starvation under medium to full throttle.
After purchase of the truck, it seemed like a future weak point was the lift pump, so I put in a FASS unit as a pre-emptive measure and also to avoid having to swap to in tank pump at a later point. This unit easily has 150k and 15 years on it with no problems. Ran like a champ, until just recently when it got very loud. I change the filters regularly and run good fuel.
What is the realistic service life (normal duty) of a FASS unit and is there a way to clean/maintain it? At this point I'm satisfied I've gotten my money's worth, but just wondering what I else should look at. I'll check the fuel filter, but seems coincidental that the FASS starts making noise and then I get the P-0148 code, or is it something simple my mechanic may have done? I don't mind replacing the unit if necessary, but it might be something easy that can be addressed with a cleaning. The unusual noise is what makes me suspect the FASS initally. No leaks, no fuel smell. Normally you'd hear it on startup but not while driving. Recently it could be heard in normal driving when not accelerating.
Could this also be an FCA issue?
I'm not a real wrench, but don't mind getting my hands dirty. Any help is appreciated.
