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"wait to start"

1504 Views 8 Replies 7 Participants Last post by  jdkline
O.K. guys,
I'm slowly working out the bugs in this "new to me" truck and have another question.....when I got the truck....the "wait to start" light would come on for about 4 er 5 seconds and go that time, I would hit the key and the truck would start fine.....last week, it started rolling over more before it would start so I asked about injectors and glow plugs here.....yesterday, the "wait to start" light flashes on when you turn the key...stays on about 1 second....and goes out and the chimes beep faster like its ready to start.....I hit the starter and it rolls over about 10 seconds or so before it starts....and it started like it was on cold diesel....I dont think the glow plugs are heating......also, when the light goes out, there is a loud clicking noies under the hood that is repititous and the amp meter jumps up and down along with this clicking. Almost like something is kicking in and out! Any ideas here? Thanks for all the great info. here and the quick response to my thing at a time and we'll get this blue oval back to where she should be!
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Hey, I think you made teh right choice to change teh glow plugs. I have teh 7.3 style system on my 6.9 and teh wait light stays on 7-10 seconds when dead cold even here in Florida, where our morning temps when I go to work or whatnot are usually 70-80*F. It sounds like you had one bad GP when you got it and now have 2 or more dead ones. Please pay attention to what Pete said and don't pull a glow plug that gives you a lot of resistance. This could lead to disaster! I would roll the engine to TDC for each pair of pistons just in case something drops in you have a good chance to pull it out through the inj. hole with a shop vac or similar. Also you might want to ahve your injectors tested while you have them out and get the thing timed profesionally when you put it back together. For fuel economy, you should probably be getting 14-18 empty with the ZF-5 and 4.10s. I don't know how much improvement you would see with 3.55s with the O/D added, or how much of a power loss. As to the Banks turbo, I would say if teh motor's in good shape its probably not too late to turbo, how's your power and oil consumption/ blowby? You would also want to take teh valve covers off and check the valves to make sure they don't have excessive play. Dropped exhaust valves are the #2 cause of premature death ona 7,3(right behind cavitation), so ya I'd look at teh real carfully before turbocahrging, but other than that I don't see what you'll hurt as long as you keep your boost to <13psi or so and EGTs <1150 or so. Seek other knowledge for exactly how to check the valves if you aren't sure either because I can't really tell you how to do it, and if you do something wrong you could dropa valve manuially and create a problem that wasn't there originally. Good luck,
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