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Z71 Offroad
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1,259 Posts
Discussion Starter · #1 ·
Sometimes when i crank my truck up it stutters and hesitates, and other times it will stutter once then die then ill turn the key for bout 5 seconds then it will crank...and then theres times when it will crank like its suppose to..
anyone have an idea what it could be?
 

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Missin the switches
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3,045 Posts
fuel pressure regulator..mine did the same thing before..on the right side of the motor, there is a little silver round thing on the fuel rail..there is a small rubber vaccuum hose coming out of the top of it..after it runs for a while, shut it off, then pull this rubber hose off..if there is gas there, the regulator is bad..it fixed my rough starts
 

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Z71 Offroad
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1,259 Posts
Discussion Starter · #3 ·
i let it run for about 5-10mins then checked the hose and there was no gas..
 

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HOT AIR BALLOON OWNER
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14,932 Posts
Just change the FPR. It's your problem.
 

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GM Dealership SVC MNGER
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222 Posts
might be his maf sensor too i just had that problem on mine
 

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Missin the switches
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3,045 Posts
99% of the time its your FPR..the MAF really doensnt come into effect until its running,..there has been so many people with the rough starting..someitimes it starts, sometimes it doesnt and you have to start it again..if you give it gas while its "struggling" it starts...its the Fuel Pressure Regulator..
 
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