1987 F250 C6 with aftermarket Banks Turbo
Been chasing this issue for a long time. Starts fine when recently ran and warm. In the morning she turns over with no sign of starting for 15 seconds. Then I let it chill for a bit. Then turn it over and around 10 seconds she will start and run fine. And there is a puff of white smoke out the tailpipe.
Yes, I know this points to the GP system being the issue.
Things I know:
GP side of the story:
Glowplugs are Motorcraft and pass the Ohm meter test. I pulled all 8 and individually tested.
GP wiring harness has new bullet connectors and passes the ohm test from Bullet connectors to the GPC. No resistance.
GPC has 12v constant power and the smaller post has over 8 volts.
GPC has 10v on the GP harness side at the post when cycling the GPs
The WTS light and volt meter match each other and I hear a bunch of clicking (probably 8 clicks never counted) when it goes out.
Fuel supply and return side of the story:
New fuel line everywhere
Eliminated the Fuel Switch Valve and only using the front tank
New pickup in front tank
Clear hose running into the manual lift pump
Clear hose running up to the fuel filter
No air bubbles or bleed down over night
Full Fuel filter in the morning
New Injection Pump
I believe i have it timed now
***The return line on coming off the IP never fills with fuel and will drain down shortly after turning the truck off. Could this be my issue?
The truck drives great when running.