Re: Help...new glow plugs...injection pump rebuilt still no
Posted: Tue Nov 20, 2012 10:04 am
Some points for deduction:
- vehicle starts fine when warm outside or has been plugged in (coolant warm)...therefore rule out items that are unaffected by the relatively small temperature fluctuation. I don't see how compression could change for the worse nor do I think injectors would change function in ~20oC range..
-if it is a contracted seal that is letting air in...it is one that is close enough to a flow of coolant to be sufficiently warmed and swelled when vehicle plugged. Would think that rules out pin holes and leaks in fuel lines and fuel filter housing.. Even though IP rebuilt it could still be the source of a bad seal.
-. You have verified that the glow plugs are getting 12v for the proper time via a dash light so that rules out glowplug relay and anything related to the coolant ttemp sensor/glow plug ecu.
my guess is on batteries or the plugs.
Good luck with the investigation.
- vehicle starts fine when warm outside or has been plugged in (coolant warm)...therefore rule out items that are unaffected by the relatively small temperature fluctuation. I don't see how compression could change for the worse nor do I think injectors would change function in ~20oC range..
-if it is a contracted seal that is letting air in...it is one that is close enough to a flow of coolant to be sufficiently warmed and swelled when vehicle plugged. Would think that rules out pin holes and leaks in fuel lines and fuel filter housing.. Even though IP rebuilt it could still be the source of a bad seal.
-. You have verified that the glow plugs are getting 12v for the proper time via a dash light so that rules out glowplug relay and anything related to the coolant ttemp sensor/glow plug ecu.
my guess is on batteries or the plugs.
Good luck with the investigation.