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Sputtering on take off

Tiny
DYLAN MIKEL PAVKA
  • MEMBER
  • 1998 GMC SIERRA
  • 4.7L
  • V8
  • RWD
  • AUTOMATIC
  • 90,493 MILES
It runs fine when going down the road however if it sits for a while (like more than five minutes) or if I even sit at a light for more than just a couple minutes it sputters and sounds like it is going to stall. What could this be?
Wednesday, June 21st, 2017 AT 2:56 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,904 POSTS
Hello,

It sounds like it could be one of a couple things. First can for vacuum leaks.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

and then I would change the spark plugs and wires for new

https://www.2carpros.com/articles/how-to-tune-up-a-car-engine

and finally the mass air flow sensor can be out of range but not setting a code.

https://www.2carpros.com/articles/how-to-replace-a-mass-air-flow-sensor-maf

Please run some tests and get back to us so we can continue helping you.

Cheers, Ken
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Friday, June 23rd, 2017 AT 11:42 AM

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