1999 GMC Sierra my truck turns over but takes a while to AC

Tiny
CESAR.Y
  • MEMBER
  • 1999 GMC SIERRA
  • V8
  • 2WD
  • AUTOMATIC
  • 17,000 MILES
I have a 99 sierra with a new engine it has about 17,000 miles on it I swaped the engine myself due to a blown head gasket, before the new engine my truck would turn over than start after like 10 seconds so I changed the fuel pump solved the problem for about a month than it did the same thing when I got the new engine it stoped having the problem than 2 months later it started turning over for a while than start. What is causing this?
Monday, December 21st, 2009 AT 1:17 PM

3 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
I use a gage and check fuel pressure. If fuel pressure is an issue, cycling the key on and off a few times, before cranking, may help. Also, the fuel poppets may need cleaning?
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Monday, December 21st, 2009 AT 1:29 PM
Tiny
CESAR.Y
  • MEMBER
  • 2 POSTS
THANKS FOR THE INFO. BUT HOW SHOULD I CLEAN THE POPPETS IS THEIR SOME SPECIAL SPRAY OR HOW SHOULD I DO THIS
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Thursday, December 31st, 2009 AT 8:21 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
If they need cleaning, the best cleaning procedure is a shop procedure. Injector cleaner in the gas tank, may not help anything?
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Friday, January 1st, 2010 AT 9:49 AM

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