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1995 Chevy Blazer raw gas coming out of exhaust

Tiny
WILLHAROLD
  • MEMBER
  • 1995 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 169,000 MILES
I just replaced the head gaskets &all gaskets from there up. Well now when I start it I have gas coming out of the exhaust on the right side. What would be the cause of this? Did I forget a gasket or something?
Wednesday, November 4th, 2009 AT 1:57 PM

10 Replies

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Make sure it is not antifreeze coming out. Thay much gas in a engine to come out exhaust would flood and not run.
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Wednesday, November 4th, 2009 AT 3:19 PM
Tiny
WILLHAROLD
  • MEMBER
  • 6 POSTS
Yea its gas. Could it be the fuel pressure regulator?
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Tuesday, November 10th, 2009 AT 8:32 PM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Maybe leaking injectors how does it run? Dual exhaust no H pipe? Pull hose offf regulator gas present? 8 digit in VIN if W fuel pressure 55-61 psi if Z then 9-13 psi
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Wednesday, November 11th, 2009 AT 11:57 AM
Tiny
WILLHAROLD
  • MEMBER
  • 6 POSTS
It idles ok but you can tell its not running on all cylinders. It has a Y pipe that goes into 1 exhaust pipe. The fuel pressure regulator is inside the intake. Should I take the top half of the intake off and check it that way?
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Friday, November 13th, 2009 AT 8:36 AM
Tiny
DOCFIXIT
  • MECHANIC
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Check fuel pressure that will tell without taking anything apart. Engine W or Z?
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Friday, November 13th, 2009 AT 2:30 PM
Tiny
WILLHAROLD
  • MEMBER
  • 6 POSTS
It is a W engine. I will check the fuel pressure today. Thanks so much for hanging in there for me. These new motors with all the BS stuff on them is crazy. I will let you know what I find out with the fuel pressure. Again Thank You for takin the time to help me.
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Saturday, November 14th, 2009 AT 11:29 AM
Tiny
WILLHAROLD
  • MEMBER
  • 6 POSTS
I checked the fuel pressure & it was reading 35psi with just the key turned on not running. Does that mean a bad fuel pressure regulator?
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Monday, November 16th, 2009 AT 10:25 AM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Did pressure hold after key off? If no then yes pull upper intake regulator is factory set and no adjustment.
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Monday, November 16th, 2009 AT 3:08 PM
Tiny
WILLHAROLD
  • MEMBER
  • 6 POSTS
I found out what the problem was ! The fuel return line inside the intake had a hole in it. I finally took off the top of the intake & it was full of gas on the right side. After further investigation I found the hole in the line. Replaced the part & it solved the problem. Thank you so much for helping me, your the best !
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Saturday, November 21st, 2009 AT 2:12 AM
Tiny
DOCFIXIT
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Your welcome glad you found problem that was an unusual one.
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Monday, November 23rd, 2009 AT 9:15 AM

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