2009 AWD 100k 13mpg?? - Chevy Traverse Forum: Chevrolet Traverse Forum
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post #1 of 44 (permalink) Old 02-15-2017, 07:23 PM Thread Starter
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2009 AWD 100k 13mpg??

I've take proper care of my kid taxi but my mileage has never been great. Best I've seen is 17mpg and not expecting much more. I reset the DIC counters on every fill up and I'm averaging around 13mpg and sometimes lower. Ideas?

Pending maintenance:
Plugs
Transmission Fluid Change
Clean air intake valve..got some pooled oil..spray some intake cleaner.
Anything else?
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post #2 of 44 (permalink) Old 02-15-2017, 08:45 PM
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Re: 2009 AWD 100k 13mpg??

I think an intake cleaning, new plugs, and a new air filter will probably help your MPG the most at this point. If you're not already doing it, adding a fuel system cleaner at a consistent interval will help things out, too. There are plenty of people here that use only Tier One fuel and add Techron (or similar) at every oil change. I use only Tier One fuel and add one can of BG44K once a year and I've not had any issues. Your mileage (and the opinions of others) may vary.

We just did 100K maintenance on our 2010 back in November/December. This included new plugs, intake cleaning service (1st time), transmission flush (second time), and coolant service done at the dealer. We were seeing between 14.5 and 15 MPG around town, but high temps had been around freezing and lows were below zero. After the service, MPG was between 16.0 and 16.5 MPG around town (back to where it had been in colder weather) and we averaged over 21 MPG on our 1600+ mile Thanksgiving round trip--I think the intake clean and plugs were probably the keys to that improvement. That trip was with a fully loaded vehicle, lots of mountain driving, some in-town driving mixed in, and fairly cold temps.

I also did an oil change, air filter change, transfer case/rear differential fluid change (2nd time), front brakes (1st time), and serpentine belt (1st time) before we left on our trip, then replaced the factory struts/shocks after Christmas.

100K maintenance can be expensive, but worth it if you're keeping the vehicle for an extended amount of time.

2010 Traverse LTZ AWD<br />Born 11/09<br />Silver Ice Metallic, Titanium Leather<br />DVD, Nav, Sunroof, Towing<br /><br />Just drive it.
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post #3 of 44 (permalink) Old 02-15-2017, 10:06 PM
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Re: 2009 AWD 100k 13mpg??

my 100,000 mile service....

http://www.traverseforum.com/index.php?topic=16321.0

how to trans fluid
http://www.traverseforum.com/index.php?topic=2900.0

how to serpentine belt

http://www.traverseforum.com/index.php?topic=9938.0


how to air filter
http://www.traverseforum.com/index.php?topic=1620.0

how to throttle body- clean
http://www.traverseforum.com/index.php?topic=1621.0

2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L - 60,000
2010 Traverse 3.6L- 127,000
2003 Trailblazer 4.2L- 180,000
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post #4 of 44 (permalink) Old 02-16-2017, 01:20 PM
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Re: 2009 AWD 100k 13mpg??

Just wanted to add to these great posts. Cleaning the Mass Airflow Sensor would be a good idea. You can get a can of CRC 05110 MAF cleaner and clean that yourself. Pretty easy, just take it off the air tube and spray all around the inside and let dry, reassemble. Dirt on the sensor can alter the fuel mixture to a degree.

2012 Traverse LT2
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post #5 of 44 (permalink) Old 02-16-2017, 02:27 PM
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Re: 2009 AWD 100k 13mpg??

Quote:
Originally Posted by whipster
Just wanted to add to these great posts. Cleaning the Mass Airflow Sensor would be a good idea. You can get a can of CRC 05110 MAF cleaner and clean that yourself. Pretty easy, just take it off the air tube and spray all around the inside and let dry, reassemble. Dirt on the sensor can alter the fuel mixture to a degree.
Yep, did that as well. Too much for this older mind to keep track of.

2010 Traverse LTZ AWD<br />Born 11/09<br />Silver Ice Metallic, Titanium Leather<br />DVD, Nav, Sunroof, Towing<br /><br />Just drive it.
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post #6 of 44 (permalink) Old 02-16-2017, 06:17 PM
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Re: 2009 AWD 100k 13mpg??

the mass air flow sensor is one thing Ive never cleaned..... in any of my cars...

maybe ill do that next oil change.

2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L - 60,000
2010 Traverse 3.6L- 127,000
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post #7 of 44 (permalink) Old 02-16-2017, 06:51 PM
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Re: 2009 AWD 100k 13mpg??

Quote:
Originally Posted by rbarrios
the mass air flow sensor is one thing Ive never cleaned..... in any of my cars...

maybe ill do that next oil change.
A person can look at a few pids and see a difference sometimes. Like the load, grams per second, fuel trims, not sure if the lambda's use hertz(a raw maf reading). Drawing a blank if there's any others, hehe.

I like to use the spray and compressed air a couple times to clean the filament. I think these are internal so you wouldn't see any working parts like the older cars used. Those were just filaments hanging in mid air and easy to see the dirt on them. Just have to get some spray in the holes from different directions the best you can.

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post #8 of 44 (permalink) Old 02-16-2017, 06:52 PM
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Re: 2009 AWD 100k 13mpg??

Quote:
Originally Posted by Toddzilla67
Yep, did that as well. Too much for this older mind to keep track of.
Oh, I can relate to that!

2012 Traverse LT2
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post #9 of 44 (permalink) Old 02-16-2017, 07:28 PM
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Re: 2009 AWD 100k 13mpg??

Quote:
Originally Posted by whipster
A person can look at a few pids and see a difference sometimes. Like the load, grams per second, fuel trims, not sure if the lambda's use hertz(a raw maf reading). Drawing a blank if there's any others, hehe.

I like to use the spray and compressed air a couple times to clean the filament. I think these are internal so you wouldn't see any working parts like the older cars used. Those were just filaments hanging in mid air and easy to see the dirt on them. Just have to get some spray in the holes from different directions the best you can.
It's super easy to do on the Lambdas. All you do is unplug the MAF and remove the 2 screws holding it to the air duct connecting the air filter case to the throttle body. Just be careful not to touch anything but the plastic housing of the MAF and you should be fine.

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post #10 of 44 (permalink) Old 02-16-2017, 11:16 PM Thread Starter
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Re: 2009 AWD 100k 13mpg??

Thanks everyone. I'll start with the throttle body clean since I have to take everything off to get to the rear plugs anyways. I picked up some Bosch plugs, intake cleaner, and a gasket. I dumped some Techron Fuel System Cleaner on fill up today as well. Found a fairly detailed video on YT but apparently I can't post links.
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