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an odd thing happened to me tonight

Old Sep 6, 2006 | 05:18 PM
  #11  
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no, I have the auto. actually if I am leaving a parking lot making a turn onto a highway and I hammer it I chirp the tires everytime on dry roads. Maybe I got a top secret prototype v8 that wasn't supposed to get delivered. I gotta go count the spark plugs
 
Old Sep 6, 2006 | 05:49 PM
  #12  
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Default RE: an odd thing happened to me tonight


ORIGINAL: importkiller

first off, I haven't gotten my h3 to the dealer yet to check out my horrible fuel mileage but this happened to me tonight and it made me wonder.

I was coming out of home depot and pulled to a red light, next to me was a red h3 with dual exhaust and was also a base with stock rims/tires. My windows were down as was his and we had a quick conversation and he claimed how his h3 had a cat back system,K&N intake kit and was much faster than a stock one and he was getting 16-17 mpg. I asked him to nail it when the light turned green and see how much quicker his h3 was than stock. light turned green and we both gunned it. I DESTROYED HIM...the next light is 1/2 mile away and I was a good 10 car lengths ahead of him. He pulled next to me at the next light and asked if I had a supercharger or something cause he was to the floor the whole way and I was pulling from him. This made me go hmmmmm. I am now wondering if my h3 was messed up when it was tuned or flashed and has made me suffer bad MPG but also made me quicker than most. Honestly I never felt my 3 was a dog or underpowered in any way, and it always made me wonder when I read people complaining about power. Now I wonder if I should even bring it to the dealer.
Did the dealer reflash or do you have a custom tune? This is a long shot, but the H3's pcm has a COT protection (cat over temperature). We actually have a cat. converter built into the exhaust manifold and a separate cat. converter. The PCM calculates/estimates the temperature of the cat. If the temperature is too high, the PCM will add fuel which can increase power (depending on how much fuel) and hurt gas mileage. This is a long shot though.
 
Old Sep 6, 2006 | 06:02 PM
  #13  
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Default RE: an odd thing happened to me tonight

I can "smoke tires" (probably just one at the time) every time on sharp turn and dry pavement. I get about 17mpg highway.
 
Old Sep 6, 2006 | 06:03 PM
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ORIGINAL: importkiller

no, I have the auto. actually if I am leaving a parking lot making a turn onto a highway and I hammer it I chirp the tires everytime on dry roads. Maybe I got a top secret prototype v8 that wasn't supposed to get delivered. I gotta go count the spark plugs
chirp the tires? on a full time 4wd? have you had the dealer check to make sure your front diff isn't toast? no way you should be able to chirp anything. have you checked to make sure your rear diff isn't locked (if you have that option)? i'd say you've got something wrong in the drive line/t-case that should be checked. i've seen rear lockers fail to disengage even though the light is out. if that's so, that would explain why you can chirp when turning from a driveway on to a street. otherwise, you shouldn't be able to do that.
 
Old Sep 6, 2006 | 07:12 PM
  #15  
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ORIGINAL: importkiller

no, I have the auto. actually if I am leaving a parking lot making a turn onto a highway and I hammer it I chirp the tires everytime on dry roads. Maybe I got a top secret prototype v8 that wasn't supposed to get delivered. I gotta go count the spark plugs
chirp the tires? on a full time 4wd? have you had the dealer check to make sure your front diff isn't toast? no way you should be able to chirp anything. have you checked to make sure your rear diff isn't locked (if you have that option)? i'd say you've got something wrong in the drive line/t-case that should be checked. i've seen rear lockers fail to disengage even though the light is out. if that's so, that would explain why you can chirp when turning from a driveway on to a street. otherwise, you shouldn't be able to do that.

I don't have lockers. If I shut off traction control and stuff the gas while pulling out of a parking lot onto a highway...yes the tires do chirp. Don't know which ones but I know one or both of em are chirping. I'm not saying they smoke like zibby mentioned but I definately hear a short chirp.

CHP- never had my h3 to the dealer for any mechanical issues, just once cause they forgot to put on the spare tire. I have the tune that I had on it when they rolled it off the carrier from gm.
 
Old Sep 6, 2006 | 09:02 PM
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If you do sharp turn and step on gas your tire shoud chirp (from a standstill). If not then there is something wrong (driver or car).
 
Old Sep 8, 2006 | 06:41 PM
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The other guy probably had a bag of groceries and a case of Bud in the back.
 
Old Sep 9, 2006 | 05:36 PM
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so whats your mpg? cause i only get around 14-15 and i just got back from the beach w/ me, wife,2 kids, and the back full of lugage i got 15.8mpg i still don't see how anyone is getting 16-18. maybe i got a factory freak tooo
 
Old Sep 9, 2006 | 06:14 PM
  #19  
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best milege I ever got was 12.5 I average 10.7 - 11.5 MPG
 
Old Sep 9, 2006 | 06:23 PM
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I was thinking about this. Did you ever check the MAF connection on your airbox or the engine fuses? It could be that the connecter isnt seated properly or you have a blown fuse to some electrical component. I would unplug the MAF sensor connector and plug it back in again.
 

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