schultzy1957

Here is GM'S Responce.. Quote, Our TAC department, which is a specialty team within General Motors that provides additional technical assistance to dealerships. At this time TAC has not found any correlation between the update that was performed and a drop in average MPG. Since there are no service announcements to reference relating to this issue, we have to rely on the dealerships to perform a diagnosis and determine what is causing your MPG to decrease. Unfortunately, we're limited in the amount of assistance we can offer if the dealership is unable to isolate the cause of your concerns. I have your contact information on file, and will add our correspondence to your case.

reply Look Back....... The first 3000 miles the truck AVERAGED over 22mpg. The next 3000 miles it has AVERAGED 15mpg. YES.....That is a 7 mile per gallon DECREASE!!!!! Do NOT try to blame this on me . If it was NOT caused by the 2 updates that were done, THEN something has gone wrong somewhere else....WAY WRONG..... This started before cold weather happened , this goes back to just after LABOR DAY. No idleing , No Remote starts, ect. Its Not bad driving habits. ( Do a computer scan. ) Also 90% of my mileage is HIGHWAY ..NOT CITY...

Here is GM's Response: I just spoke with the Service Manager Kevin, at Schweiters Chevrolet. He stated that your vehicle update should not have affected your average MPG. Average fuel economy can be determined by a variety of factors including cold weather, excessive idling, running electrical accessories, terrain, road surface condition, etc. Your dealership has also reached out to the GM Technical Assistance Team, and they have no information connecting the reprogram to loss in average fuel economy. I apologize that I was unable to find other possibilities for you, and understand how this situation has frustrated you. If you wish to work with another dealership for a second opinion on this issue, we'd be more than happy to locate one for you. If you have any additional concerns, please let us know.. . . Just Perfect.....They talked to a " Service Mngr " at the dealership and he said...QUOTE.(.That your vehicle update should not have affected your average MPG.) Why the heck is GM asking him?????? Why are they NOT asking there own people..... TELL YOU WHY......... GM does NOT want everyone to know that the reason the recalls were done WAS " THEY DE-TUNED" the engine because the new motor is having LIFTER and VALVE and CAM problems...... It wont be long and .....THIS WILL BE ALL OVER THE NET.... By the way... If you think GM gives a shit....THEY DO NOT!!!!!!

Update: It is now 4:30 PM Monday, My e-mail from GM last week said I would hear from my dealership and that GM would get back to me on Friday.....YES 3 days ago...Guess what ???? That Never Happened. And Neither did a call come from the dealership. Got an E-mail from GM ( this morning) asking ALL the same questions from a week ago!!!!!!! (Different person) Any Body have a NAME or a PHONE ext. number for someone at GM who MIGHT REALLY CARE ???? Cause I am thinking they just put it here on this forum to look like they do.

I think everyone here is getting way off track here. The question I asked was.....Did any one else have the same problem,....was getting approx 22 mpg and then took it in for a recall and NOW get's 14 mpg. ANYWAY GM saw the post and is going to look into it deeper.,I will post what they come up with. (P.S. I brought this to GM's attention before and they blew me off!!!!)

Guess I should have said, there is now 6000 miles on the truck...With that said , The last 3000 miles have averaged 14.7 N O T the 22.8 I was getting.

Any one else having this problem? First 3000 miles I averaged 22 1/2 miles to the gallon, My dealer called and said there was a recall on my truck ( something about valve timing/lifter issue) Now my truck is getting 14.7 miles per gallon and YES that is highway milage....GM and the dealership have both blown me off....What happened to the 23 per gallon in all the ad's....??????