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Car Forum / Ford / Ford Trucks / September 2006Glow Plugs 7.3L Ford
I have a 1989 E350 7.3L Diesel and i seem to have some glow plug trouble. i have searched posts for glow plug problems but, while ive found plenty of posts, havent had any luck on my prob. anyway here's the problem: ---what happens for two weeks now in 75 degree weather:--- turn key to glow plug position, hear a click, WAIT TO START light comes on, few seconds later (usually between 8 -10, depending on ambient temp.) WAIT TO START light goes off hear several intermittant clicks, crank and start engine JUST FINE BUT ONLY FOR 4-5 SECONDS! ---what happens now:--- turn key to glow plug position, WAIT TO START light comes on and stays on for 5 seconds then goes off try to start, engine cranks but doesnt start for 30-40 seconds- if at all. I've tried waiting, heating the glow plugs several times before starting, etc. Every time the engine starts fine the first try, then always fails every time for the thirty seconds of cranking. any help would be appreciated... the shop manual does not cover the diesel models very well, espeacially GLOW PLUGS. One thing you left out is, how does the truck run after it starts? >I have a 1989 E350 7.3L Diesel and i seem to have some glow plug > trouble. i have searched posts for glow plug problems but, while ive [quoted text clipped - 30 lines] > any help would be appreciated... the shop manual does not cover the > diesel models very well, espeacially GLOW PLUGS. >I have a 1989 E350 7.3L Diesel and i seem to have some glow plug > trouble. i have searched posts for glow plug problems but, while ive [quoted text clipped - 30 lines] > any help would be appreciated... the shop manual does not cover the > diesel models very well, espeacially GLOW PLUGS. Try asking on "thedieselstop.com" ... those guys know their stuff. I don't think it's a glow plug problem. The ambient temp outside is plenty warm to start the truck without the glowplugs preheating. I think you have a fuel delivery problem (or lack of it) of some sort. Spdloader Just because the " wait to start " lite comes on doesn't mean the glowplugs getting power Get your testlite out and check relay > I have a 1989 E350 7.3L Diesel and i seem to have some glow plug > trouble. i have searched posts for glow plug problems but, while ive [quoted text clipped - 30 lines] > any help would be appreciated... the shop manual does not cover the > diesel models very well, espeacially GLOW PLUGS. I just tested the plugs and they are getting power. The truck runs great after it is started up the second time. This is purely a starting problem. What is diesel fuel additive, and should I use it? > Just because the " wait to start " lite comes on doesn't mean the glowplugs > getting power [quoted text clipped - 35 lines] > > any help would be appreciated... the shop manual does not cover the > > diesel models very well, espeacially GLOW PLUGS. This is the same problem large truck have. The fuel is bleeding back into the fuel tank and not remaining in the line. Some fuel is still in the the line between the regulator and the injectors giving you enough for a short start and then it takes time for the rest of the fuel to get back into the line. So i would have a look at the fuel pump. >I have a 1989 E350 7.3L Diesel and i seem to have some glow plug > trouble. i have searched posts for glow plug problems but, while ive [quoted text clipped - 30 lines] > any help would be appreciated... the shop manual does not cover the > diesel models very well, espeacially GLOW PLUGS.
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