Mechanics

CHEVROLET EXPRESS ENGINE PROBLEM

1997 Chevrolet Express • 156,000 miles

Have a 1997 chevy 2500 express with the 5.7 ltr. Thing runs fine and no check engine light is on! But I'm getting really bad MPG (9mpg). The guy I bought it from said he was getting 18 hwy. So checked the exhaust very little airflow coming out. So I replaced the muffler. More air flow was noticed it was quit a bit louder and then the check engine light came on. Code was for a mass air flow sensor, replaced that and still had the engine light on! Ended up replaceing a oxg sensor. Light went out, but still 9mpg! Called chevy garage and they said to check timming and put at 26degrees. Did that still 9mpg! Went to re-time one more time and noticed dist. Movement. Pulled it and gear on the bottom was wore out, so bought a new one and put it in and timed it to 24 degrees. Could not get 26 it would run rough! MPG went up to 11 !
could really use some imput or help, PLEASE!
Avatar
Joelueck
February 26, 2013.




THIS MAY SOUND LIKE A CRAPPY ANSWER

WHEN SOMETHING "NEW TO US" ARRIVES............SEE MY ANSWER IN THIS LINK............THERE'S TWO LINKS IN THERE TOO!

http://www.2carpros.com/questions/1993-acura-vigor-this-great-car-now-giving-little-trouble-exhaust-leak-on-loud

(I HUNT AND PECK RATHER SLOWLY--LINKING HELPS ME A LOT!)

JUST "CATCHING UP" MAY HELP YOU A BUNCH, AND MAKE YOU FEEL BETTER ABOUT THE "CONDITION" YOU KNOW 1ST HAND THAT YOU HAVE DONE TO YOUR RIG

LET US KNOW HOW IT GOES

THE MEDIC


Tiny
CJ MEDEVAC
Feb 27, 2013.


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