We have a 2006 Pontiac Vibe FWD base, now just over 100,000 miles on it. Horrible gas mileage of usually 23 MPG in town, on the highway, or mixed driving. Best we have ever seen is 26 or 27 in the past 18 months that we've had the car, and that's only about 4 times! We've cleaned MAF, put in K&N...

Our 2006 Vibe does not overheat w A/C on when we are moving. However, when we stop and idle for a few minutes, the temp gauge goes up and we have to turn the A/C off or we'll overheat. Is there a sensor that we can replace so that the engine will not overheat? It seems the cooling fan is not working...

Our 2006 Vibe, bought used in Feb, has poor gas mileage, usually getting 23 mpg combined city/hwy. Most we ever got was 26 mpg and that's only been on 2 or 3 fillups. We've tried most of the suggestions to improve mpg and none has worked. Has anyone put a different ECM on their car, other than the d...

I'm reviving this thread because, what do you know, I just got a recall notice from GM about the ECM. Took it in today and the service guy said they need to reflash the computer for this recall. We have been getting 23 mpg overall, rarely as much as 26. We still are of the opinion the ECM is at faul...

We plan to do what GregC recommends, but I have my doubts that that will get us an additional 7 mpg, which is what I thought I would be getting when I bought the car. As for the dragging brakes, it doesn't seem that the car would be so peppy-moves just fine, coasts easily and requires very little pr...

New member who's already learned a lot just by finding this forum. :D I bought a used 2006 Vibe base from a GM dealer a few months ago. Around 95,000 miles now and seems to run good. However, gas mileage is poor, less-than-expected 23 mpg, no matter city or highway, no matter gentle or more aggressi...