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Help -'97 dually that won't start
Hi all, Newbie to this forum, with a starting problem.
My son's Eclipse Custom 4-dr Dually has been sitting here in Fla for a few months. It was started monthly to move to mow grass. Last time it was tried, the batteries were too low to start. (not bad for a 97 - almost 10 years) Never ever had a problem until now. It has about 80K on it. It's entire life has been pulling his 29' Fountain Fever boat without a single problem.
Purchased 2 new premium batteries, and got it started, but it acted like it was running out of fuel. Sometimes it would start & idle, other times it would lope, and never rev up. Sometimes it would act like no change in rpm when you stepped on the throttle. Sometimes it sounded like it was only running on 6 or 7 cyl. Finally I couldn't get it to even start! Checked & added more fuel. Both tanks are FULL. Checked the filter, and it was full. Drained off some fuel, and no water to my knowledge came out.
Later I tried to see if fuel was getting to the filter bowl, and when cranking the engine, fuel would slowly rise into the bowl. It sounds like the fuel pump is running with the key on, but it never seems to totally stop! This was before removing the filter for a look-see.
I'm a half-fast diesel mechanic as I have a Yanmar 35HP in my boat, but it is all mechanical. Used to be all you need is air & fuel to make it run, but with the ECM and computers & electronic injectors it is not so simple any more.
Just trying to get a handle on the problem 'cause it's a long way to be towed to a garage for work.
One last question, do the 7.3 PowerStroke engines of this vintage need to have the air bled out of the systems like my little Yanmar, or are they self-bleeding? It would seem to me that they bleed themselves.
Thanks for any help