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Bogs down on acceleration

Tiny
MPLSBADBOYZ
  • MEMBER
  • 1994 CHEVROLET SUBURBAN
  • 260,000 MILES
I got a 94 Chevy 350 motor it starts fine and runs fine but when I excelerate and give it a lot of gas it bogs down
Saturday, April 20th, 2013 AT 8:01 AM

5 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes and check fuel pressure first
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Saturday, April 20th, 2013 AT 8:17 AM
Tiny
MPLSBADBOYZ
  • MEMBER
  • 3 POSTS
Fuel pressure is fine anything else
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Saturday, April 20th, 2013 AT 8:33 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
What is pressure? Did you scan for codes. If hti sis tbi did you check for soft hose going to map sensor or blown gasket under tbi unit?
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Saturday, April 20th, 2013 AT 8:50 AM
Tiny
MPLSBADBOYZ
  • MEMBER
  • 3 POSTS
How do I check for codes in an 94 Chevy Suburban 350
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Saturday, April 20th, 2013 AT 9:00 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Cross A & B on the aldl with a paper clip turn key on an dwatch light flashes, light will flash three times twice like once then twice =12 get allcodes and come back to site look under OBD1 diagnostics. Code 12 is normal with key on and engine not running. Check fuel pressure it should 9-11 psi for tbi.
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Saturday, April 20th, 2013 AT 9:05 AM

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