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#1
05-31-2006, 08:00 PM
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Hard starting Sierra
Hey Guys!
My 2000 GMC Sierra 5.3L is hard to start. It's got about 68,000 miles and it doesn't seem to matter if the engines hot or cold, it has to crank over for a few seconds before it will start, sometimes i'll have to try it more than once. Otherwise it runs great. Have tried disconnecting vacuum line from the fuel pressure regulator to see if there was any fuel in the line, but nothing. Any help would be greatly appreciated!! Thanks 
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#2
05-31-2006, 08:27 PM
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Re: Hard starting Sierra
Quote:
//2000CAYukon
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#3
06-01-2006, 11:49 AM
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Re: Hard starting Sierra
I agree, I have had that same problem before with my '96 and it was the fuel pump pressure being weak after double checking it with a fuel pressure tester. mine was at 40 psi instead of the 60 plus psi that it needs at start-up.
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#5
06-03-2006, 01:10 PM
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Re: Hard starting Sierra
Hey Guys,
I didn't have access to a fuel pressure tester, so I took a chance and bought a new fuel pressure regulator. But, I'm still having the same problem. Any other suggestions?  Thanks Last edited by rgs63; 06-04-2006 at 01:27 PM.
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#6
06-04-2006, 01:58 PM
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Re: Hard starting Sierra
Have you checked for any stored trouble codes? As far as the fuel system you are going to have to do as told above and get a fuel pressure guage and see what pressure when the truck is running. When was the last time you changed your fuel filter?
__________________
NO 4 N JUNK  1994 GMC K1500 XC 5.7L 2008 Chevy Impala LTZ
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#7
06-05-2006, 08:07 PM
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Re: Hard starting Sierra
No, haven't checked for trouble codes. I changed the fuel filter back in august of '04, at about 55,000 miles. I guess I'll have to take it to a garage and have them run some tests.
Thanks
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