2003 Sierra never cranks on the first try

2003 GMC SIERRA
112,000 MILES • 4.8L • V8 • 2WD • AUTOMATIC
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ISAAX
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  • 4 POSTS
I have 2003 GMC Sierra with 112000 miles, the truck doesn't want to crank on the first try, but fires right up on the second try. I saw another post from 2007 with the same issue and sure no answer.
Sep 3, 2015 at 4:38 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
check for clean battery terminal ends first then check starter relay under hood for corrosion. if progs are corroded then use dielectric compound on them
Sep 3, 2015 at 5:17 AM
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ISAAX
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Just to be clear, there is no problem with the starter motor. It cranks, but doesn't fire.
Sep 3, 2015 at 11:02 AM
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ISAAX
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  • 4 POSTS
An additional note to add as I tinker, if I key it on and off a couple of times before hitting the starter it fires up.
Sep 4, 2015 at 12:35 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
it may be the ignition switch then but check starter relay like I said in other reply
Sep 4, 2015 at 1:08 AM
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ISAAX
  • MEMBER
  • 4 POSTS
Will do, thanks!
Sep 4, 2015 at 2:21 AM
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