2002 envoy dash fuel economy reading are erraticly changing

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bblahut
Posts: 1
Joined: Mon Feb 18, 2013 2:13 pm

2002 envoy dash fuel economy reading are erraticly changing

Unread post by bblahut » Mon Feb 18, 2013 2:21 pm

Do you have any idea when the instant fuel economy monitor on the dash changes erraticly when selected. I realize that it will be changing all the time, but it jumps continuesly when driving at contant speeds.
Thanks

 

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ProTech
Posts: 657
Joined: Wed Oct 17, 2012 10:08 am

Re: 2002 envoy dash fuel economy reading are erraticly chang

Unread post by ProTech » Tue Feb 19, 2013 8:25 pm

It all depends on the situation. Sometimes it can remain steady, and other times it will jump all over the place. Also depends on the quality of fuel you're using as well. It should be nothing to worry about.
GM Dealer Technician For 18+ Years
In the automotive industry for 20+

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