mechanic said it was the computer new fuel pump,new filter,black soot coming from it when motor is reved,even speed of 55 starts jerking, can computer be reset
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1997 GMC Sonoma
Question: why does my 97 sonoma use so much fuel (150.00 wk)
Answer #1mastertech6371 February 07, 2012, 14:57Master
get a new mechanic. you need to start with basics. compression, fuel pressure, spark and its control. cat converter being clogged. these are basics before talking anything let alone a computer.
Answer #2RickRussell February 07, 2012, 15:20Rookie
Check the vacuum port side of the fuel pressure regulator. It might be dumping fuel into plenum
Answer #3patrick mannion from Greg Solow's Engine Room, February 07, 2012, 21:46Master
Roy and Rick are right! Has there been a check engine light on? Even if there is not it would be worth looking at key engine sensor data and fuel trim figures on a profession grade scan tool to see if anything is a miss. If your mechanic is stumped, there is a professional service called Identafix. http://www.identifix.com/info/about_us.htm They only deal with professional repair shops. They are in the Minnesota 651-633-8007 begin_of_the_skype_highlighting 651-633-8007 end_of_the_skype_highlighting. Your auto repair shop do all their diagnosis tests, and discuss your problem with a team of professional technicians great service cheap and very bright people. If the repair shop that are repairing your car are stumped this is a great service. This company only deal with automotive repair shops and don't answer questions for the general public but are an amazing knowledge base.