12 mpg city and 17 highway. Around 14 mpg combined driving. They are gas hogs.
About 15 mpg on a 1990 Chevrolet suburban.
1990 Chevrolet suburban gets about 15 mpg.
13-16 mpg
this might help you: http://www.justanswer.com/questions/194b5-1987-gmc-suburban-4x4
The Yukon is a GMC and the Suburban is a Chevrolet.
The estimated mpg (miles per gallon) for the 2003 Ford F250 is 11 miles in the city. The mpg for highway travel is an estimated 15 miles.
on a 1999 gmc 1500 suburban 5.7 l where is the ac condensor
The estimated mpg for city driving is 22. The estimated mpg for highway driving is 28. Combined mpg is 24.
Manual: 18 mpg / 24 mpg Automatic: : 18 mpg / 21 mpg
21
An ECU is essentially the brain for a 1999 GMC Suburban. Without an ECU the truck will not be able to operate at all.