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Gas tank forms suction while driving. Truck

Tiny
CHANCE808
  • MEMBER
  • 2003 GMC C1500
  • 0.5L
  • V8
  • AUTOMATIC
  • 165,000 MILES
Truck will run but very very sluggish stalls when hard acceleration. Have changed gas cap and fuel filter. To no avail
Tuesday, December 23rd, 2014 AT 9:19 AM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
San for codes and check fuel pressure with a gauge auto parts rent it.
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Tuesday, December 23rd, 2014 AT 9:59 AM
Tiny
CHANCE808
  • MEMBER
  • 2 POSTS
I had it. Scanned 3 codes 2 02 sensor and knock sensor. But didnt check fuel pressure. What should the pressure be. And replacing fuel fix it?
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Tuesday, December 23rd, 2014 AT 10:05 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
You didn't give an engine sizze55.62 psi if it's a5.3L
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Tuesday, December 23rd, 2014 AT 11:59 AM

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