snarl95
Well-Known Member
Where is the fuel pressure gauge plumbed into? When was the fuel filter changed?
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This refers to the lift pump check valveshould be on the input side or tank side
Put an @ sign then without space type the name. That will send him notice to his email, that he got the calling.Will L.....just a reminder...I wrote the information you asked me to send you but haven't heard back from you. Please let me know when you have time! Thanks! Rodney
Ok- after the 3 time key cycling: did it still start very poorly or did that make it a faster start?Bezzer wrote back- 3-24 afternoon:
snarl95 Thanks for writing ...Fuel pressure gauge is plumb into the top of the fuel .
Never had any water or garbage in the filter being regularly changed .
Motorhome now has around 80,000 miles.
akadiesel...Where is the check valve in the AC Delco EP309 lift pump? This is the
one I have....it's the original installed.
The clear line has no bubbles or loss of fuel.
Will L....Exhaust pipe problem cleared up a long time ago.
Like you asked- I turned the key on....gauge goes right to 5 lbs. Did this three times.
Stayed until the engine started and gauge went to 4 lbs. Turned engine off.
Gauge started to drop down very slowly. And after 2 1/2 hrs it was down to
1 lb.
Gen-Have an assistant crank the truck while you just crack open a high pressure fuel line. If there is a hesitation than pressurized fuel then there is air in the system. You can also try to crank the engine with the fuel return line disconnected and ran into an empt water bottle. If the engine starts then your fuel return line is restricted.
I agree EXCEPT he said there is no air in the clear line. It is for sure fuel is draining back because of the pressure drop. But it isn’t all draining back enough to allow an air pocket. Basically it isn’t “draining” back as much as the pressure is pushing back a small amount of the fuel enough to drop SOME of the pressure but not all.If the fuel is draining back he should have air at start up. No air would indicate it's not draining back. So something is causing it to take 5 seconds to build pressure, maybe a bad LP