Speedometer not accurate?
#21
Maybe ChevyMgr could shed a bit more light here, not sure if it's applicalbe to the HHR........
under bulliten 83-83-16..........
There is no problem if you are within these parameters.........
under bulliten 83-83-16..........
There is no problem if you are within these parameters.........
- 20 mph..................+/- 4
- 45 mph..................+/- 3
- 65 mph..................+/- 2
#22
what size wheels/tires you using?
Your speed synchronization problem my be related to any changes you made with your wheels. Since the LS comes with 16", the LT with 16 & 17" and the SS with 18" wheels, maybe the fault is with this discrepancy. On my VW Passat, I went from 15" 195/65 wheels/tires to 17" 235/45 wheels/tires and now have to set the speedometer to @ 58 mph to travel at 55 mph. By the way, my average gas mileage also went down, I was getting 32+ and am now getting 30+. This with a 1.8L Turbo, 5-speed.
#23
According to my GPS my HHR at 70 is 2mph slow. I find this with all GM vehicles I have driven in the past 10 years. I bet all vehicles are on the slow side to protect them from being sued by someone who got a speeding ticket. My Goldwing was almost 5 mph slow.
#24
Maybe ChevyMgr could shed a bit more light here, not sure if it's applicalbe to the HHR........
under bulliten 83-83-16..........
There is no problem if you are within these parameters.........
under bulliten 83-83-16..........
There is no problem if you are within these parameters.........
- 20 mph..................+/- 4
- 45 mph..................+/- 3
- 65 mph..................+/- 2
Geez, jx3.....you're going back pretty far with that bulletin #. If I remember correctly, that sequence of numbers expired about 10 years ago. Isn't there anything newer than that for the more technically accurate vehicles???
#25
My HHR reads about two mph higher than my GPS reads. I figure that I'm safe from a ticket when I'm driving the posted limit. I have another car that the speedometer reads 5 miles lower than the the GPS plus the odometer is off by about 5%. So my car that shows 140,000 miles really has 147,000 miles on the clock. It still runs good.
#26
As I noted first in the post........maybe ChevyMgr could shed some light on it.
#27
But I wasn't criticizing. I, as I mentioned, thought you were researching the item. Thought maybe there is a more recent bulletin/tsb regarding this, and was asking for that.
#28
How about this one, posted May of 08 is where the +/- differences came from...........
#08-08-49-011.....how relevant is this one to the HHR?
#29
Wow... + or - 4 MPH @ 20 MPH?
My GPS confirmed that it was between 1 or 2 MPH at all speeds including highway speeds.
My S-10 was right on! Oh well. (And so is my father's STS...haha).
I guess this is okay.
My GPS confirmed that it was between 1 or 2 MPH at all speeds including highway speeds.
My S-10 was right on! Oh well. (And so is my father's STS...haha).
I guess this is okay.