Corvette C4 Forum 1984 through 1996

silly starting question

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Old Aug 7, 2007 | 06:49 PM
  #1  
dans87vette's Avatar
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Default silly starting question

Looking for some clues here. If my car is cold (sit overnight) it starts the first second I turn the key. If I've driving around and the car is warm, I go to restart it and has to crank for ever. Any good reason for this????
 
Old Aug 7, 2007 | 08:38 PM
  #2  
cwb's Avatar
cwb
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Default RE: silly starting question

How's the exhaust look when you do get a hotre-start? Lotta' black?
 
Old Aug 8, 2007 | 06:37 AM
  #3  
mech259's Avatar
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Default RE: silly starting question

You are going to have to do a little digging. Does it have fuel pressure? Does it have spark? Does it have injector pulse? Have to answer those basic questions first to know what avenue to go down.
 
Old Aug 8, 2007 | 07:21 AM
  #4  
rshiver's Avatar
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Default RE: silly starting question

Sounds like yours is doing the same thing mine is. I know I have some injectors leaking.Watch your exhaust after a warm start, is there a puff of black smoke and does the exhaust smell rich??

As long as I don't letmine set over 15 min or so it will start fine, but if I let it set much longer than that, say 30 min or so,it acts like it's flooded. During a cold start I can smell the exhaust is rich and see a puff of black smoke but it cranks right up on the first spin, but a cold engine likes a richer mixture, a hot engine doesn't like it at all.
 
Old Aug 8, 2007 | 04:18 PM
  #5  
dans87vette's Avatar
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Default RE: silly starting question

Thanks for the advice guys. I do get a bit of smoke at the start. I thought that was valve seals leaking a bit though. I try some of the items mentioned and see what I find. Again, this is only when the car is WARM, when it's cold the car starts like a new car.
 
Old Aug 8, 2007 | 10:00 PM
  #6  
84corvetteC4's Avatar
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Default RE: silly starting question

very likely you have leaky injectors OHM them out, but you will prolly have to replace them remember black smoke fuel, blue smoke oil , white smoke moisture(usually coolant)
 
Old Aug 9, 2007 | 04:06 PM
  #7  
dans87vette's Avatar
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Default RE: silly starting question

Blue smoke was what I was getting. I actually put some of the "oil treament" to help with leaking seals and it worked. So now I at least know that my problem was with oil. Anyhow, back to the drawing board.
 
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