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Warm Hard Starts (turns over many times)

Starts great cold, not so much after its warmed up

Warm Hard Starts (turns over many times)

Postby X Factor [OP] » Mar 22 2011, 8:30pm

I have a 1999 5.3 vortec silverado. The engine starts great when cold but turns over quite a few times when its warmed up before it will start. I can smell a little bit of fuel once it starts. Could this be a flooding issue caused by a leaking injector(s)? I am not getting any engine codes and I replaced the fuel pump, fuel filter, plugs/wires and air filter within the last year. This problem has been going on since I bought the truck and the previous owner told me about before I bought so I knew what I was getting. I should check the voltage range on the TPS to I guess since that is easy to do.

I have not cleaned the MAF since I bought it a year ago and I doubt the previous owner did as well. Any help would be greatly apprciated.

I had this problem with a 1987 5.7 liter IROC-Z when I restored it but that was several years and a few beers ago and I can't remember what I did to fix that. I want to say I changed the IAC before the problem went away. I also cleaned the injectors though as well so I'm not sure which fixed the problem.
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Re: Warm Hard Starts (turns over many times)

Postby lzn197 » Mar 22 2011, 9:10pm

Sounds like you have a leaking fuel pressurte regulator to me. Pull off the vacuum hose and see if you have fuel leaking out. If you do, it's bad, change it. Have a great day. Buy a good one too. Not one of those cheap ones.
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Re: Warm Hard Starts (turns over many times)

Postby 2003Z71 » Mar 23 2011, 12:34am

I agree 1000% with Gordon. My dad's 2000 Silverado was doing the same thing. Bought a regulator from Chevrolet, and installed it, problem solved.
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Re: Warm Hard Starts (turns over many times)

Postby X Factor [OP] » Mar 23 2011, 5:33pm

That did the trick :D

Thank you very much Gordon!
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Re: Warm Hard Starts (turns over many times)

Postby lzn197 » Mar 23 2011, 5:40pm

No problem. Happy to help. Us Silverado brothers have to stick together. Do something nice for someone today. Have a great one.
Gordon
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Make/Model: Chevrolet Silverado
Extra Info: K1500 5.3L Z71 EX
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