93 sometimes won't starts? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 5 (permalink) Old 03-21-2012, 07:35 PM Thread Starter
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Unhappy 93 sometimes won't starts?

I have a 93 7.3idi turbo. It will start fine most the time but sometime when i go to the store or something and its sits for like 5-10 mins and i come out it won't fire. It shouldn't be the glow plugs because the truck is still hot. After it starts it runs great, i have power and everything runs good sounds good but it just will not fire sometime... it seems like it starts better when its cold then when its warmed up. Anybody know what that might be? thanks
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post #2 of 5 (permalink) Old 03-29-2012, 12:14 AM
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Could be that the shutdown solenoid on the fuel injection pump going bad. They can get heat soaked and not work when they get old.

Never had it happen the the '86 I used to have, but seen it happen on others.

If it runs rough at all when it does eventually start, you could have an air leak in the fuel system. Won't always leak fuel when it happens either.

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post #3 of 5 (permalink) Old 04-16-2012, 02:24 PM
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What bmoeller said.

89 F250 HD 7.3L IDI E4OD TRANNY 4IN" EXHAUST WITH FLOWMASTER 40 SERIES PUMP TURNED UP 1 FLAT SOUP BOWL MOD HOMEMADE AIR INTAKE B&M SHIFTKIT,MANUAL TQ CONV LOCKUP MANUAL GP SWITCH BILLET GRILLE,DRIVING LIGHTS IN BUMPER LED CAB LIGHTS,20% TINTED WINDOWS GOOSENECK AND RECEIVER HITCHES
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MOSTLY HAULIN HAY AND HORSES 24,000lb.GVW TRANNY COOLER WITH FAN
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post #4 of 5 (permalink) Old 10-18-2012, 08:15 PM
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Won't Start

The reason your truck is not starting when it is warm is because your starter is dragging. Make sure your batteries are in good shape (have them tested) then pull your starter and get it tested. I had the same problem and I finally replaced the starter ow it fires like a dream. It doesn't take much drag for the engine not to turn over. But when it is already warm it has to be the starter dragging.
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post #5 of 5 (permalink) Old 04-07-2013, 04:39 AM
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Did you get this straightened out?

'96 F-250 4X4 PSD some mods
'95 F-350 2X4 PSD similar to above mods
'90 F-250 4X4 with '93 7.3 N/A farm truck
'89 F-250 4X4 7.3 N/A farm truck 300,000+
'87 F-250 4X4 6.9 with Banks side winder Gearworks underdrive
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