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deputy
New User
Apr 28, 2010, 5:17 PM
Post #1 of 5
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Starting problems
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I am having problems with my 2000 chevy silverado 5.3L starting. It cranks for about 3-5 seconds push the pedal down and then it starts. I have changed the EGR valve due to a fault code, still the same problem. Any help would be appreciated. The fuel pressure is good while cranking, it is giving 55 psi while cranking.
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Hammer Time
Ultimate Carjunky
/ Moderator
Apr 28, 2010, 5:23 PM
Post #2 of 5
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Re: Starting problems
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That fuel pressure is actually on the low fringe of what's acceptable. This system is very pressure sensitive and some won't even run under 55PSI.
If what your describing is that it won't start with with your foot off the throttle but it does as soon as you crack the throttle open, then you could have a bad IAC (idle air control).
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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deputy
New User
Apr 28, 2010, 6:32 PM
Post #3 of 5
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Re: Starting problems
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And of course I am guessing that its on the side of the throttle control body?
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Hammer Time
Ultimate Carjunky
/ Moderator
Apr 28, 2010, 6:38 PM
Post #4 of 5
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Re: Starting problems
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Sidom
Veteran
/ Moderator
Apr 28, 2010, 6:42 PM
Post #5 of 5
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Re: Starting problems
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One easy thing you can try 1st is to clean the throttle body. Get a little brush, a can of throtle body clean and open up the throttle plate and clean the bore and plate real good. You can start it up and spray some cleaner down the throttle body to get all the dirty but this will probably set a low MAF signal code that will need to be cleared.....
I believe that one has a throttle cable so it will be easy to clean. If there is no throttle cable, extreme care needs to be used to open the throttle plate. Too much force can cause the gear to jump a tooth or 2 and then it's gets very expensive........
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