Chevy Truck bad mileage Engine Code P171: Chevy Pickup Trucks  -- Trucks Trailers Discussion Forum and Review Chevy Truck bad mileage Engine Code P171: Chevy Pickup Trucks -- Trucks Trailers Discussion Forum

  parts   |   discussion   |   photos   |   podcast   |   reviews   |   specs   |   dealers   |   classifieds   |   contact   |   faq   |   myProfile   |   home          Login Now | Sign Up


FAQ:   What is a tractor?

Forum Index

Kubota Tractors
  Kubota News
  Kubota Price
  Kubota Review
John Deere Tractors
  John Deere News
  John Deere Price
  John Deere Review
New Holland Tractors
  New Holland Tractor Price
  New Holland Tractor Revie
Other Tractor Brands
  Articulated Tractors
  Belarus
  Bobcat Tractors
  Case
  Cub Cadet
  Hinomoto
  Kioti Tractor
  Long
  Massey Ferguson
  Mitsubishi
  Other Tractor Brands
  Other Tractor News
  Shibaura
  Yanmar Tractors
Lawn and Garden Tractors
  Craftsman
  Cub Cadet Garden
  John Deere Garden
  Kubota Lawn Garden
  Other Garden Tractors
  Simplicity
  Toro Wheelhorse
  Ventrac Lawn Tractors
Antique Tractors
  Allis Chalmers
  Case David Brown
  Farmall IHC
  Ford
  Ford 9N 2N 8N
  Fordson
  Harry Ferguson
  John Deere Older
  Massey-Harris Ferguson
  Minneapolis Moline
  Oliver Cletrac Cockshutt
  Restoration
  Tractor Pulling
Tractor Attachments Implements 3ph
  Back Hoe
  Field Mowers Brush Cutter
  Grooming Mowers Finish Mo
  Loaders
  Snowblowers / Snow Plows
  Tillers and Ploughs
  Tractor Implements
  Trenchers
  Wood Chippers 3PH
Tractor Maintenance
  Diesel Fuel Lubrication E
  Tractor Engine Repair Reb
  Tractor Tires
Utility ATV
  All Terrain Vehicles
  John Deere Gator
  Mule Utility Vehicles
General Tractor
  Farming Ranching Agricult
  Photo Contest
  Size Tractor Needed
  Tractor Projects
  Tractor Safety
  Welding
Chinese Tractors
  Jinma Farmpro Agracat
  NorTrac Tractors
  Other Chinese Tractors
Cars
  All Brands
  Audi VW
  BMW
  Car Tires and Maintenance
  Chrysler
  Exotic, Sports, Racing
  Ford Cars
  General Motors
  Honda
  Hyundai
  Mercedes
  News
  Nissan
  Subaru
  SUV and Trucks
  Toyota Cars
Trucks Trailers
  Chevy Pickup Trucks
  Dodge Pickup Trucks
  Ford Pickup Trucks
  Toyota Pickup Trucks
  Chevy Pickup Trucks
  Dodge Pickup Trucks
  Ford Pickup Trucks
  Toyota Pickup Trucks
Home Building
  Alternate Electric Energy
  Barns Pole Barns
  Buying Ranch Farm Acreage
  Carpentry
  Contractors
  Electric
  Excavation
  Moldings Finish Trim
  Other Home Building
  Pellet Stoves
  Plumbing
  Wood Stoves
Tools
  Electirc Power Tools
  Gas Power Tools
  Generators
  Shop Tools
  Techniques Howto
Landscape
  Flowers Shrubs Garden
  Golf Course Maintenance
  Irrigation Systems
  Landscape Design
  Landscape Lighting
  Landscape Maintenance
  Lawn, Turf, and Grass
  Vegetable Gardening
Construction
  Caterpillar
  Komatsu
  Wheel Loaders
Current Events Health Happiness
  Current Events
  Dogs and other Pets
  Electronics And Computers
  Food
  Health
  Just For Fun Off Topic
  Movies Music Games
  Personal Finance Investme
  Sports Outdoors
Tractorpoint Site
  Member Photos
  Site Members
  Website Operations Howto


New As Posted | Active Subjects



Click to Post a New Message!

Discussion Boards > Active Subjects > Messages as Posted > Chevy Pickup Trucks Forum

Page 1 | [ 2 ] |      << Prev
 
 01-23-2008, 09:54 Post: 150606
Chief



View my Photos

View my Photos  Pics
Join Date: Jul 2003
Location: Southwest MiddleTennessee
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 4283

3
Filter by User
 Chevy Truck bad mileage Engine Code P171

Another item you might try after you identify the current problem is to install a set of underdrive pulleys on the engine for the crank and alternator. They free up a little hp that might save you 1 mpg give or take.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 02-03-2008, 22:26 Post: 151075
brokenarrow



Join Date: Jan 2004
Location: Wisconsin
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1288

7
Filter by User
 Chevy Truck bad mileage Engine Code P171

Chief
This was my first choice and it also was the first thing the guy at autozone said he thought the code could be . (Not that I put that much into the auto zone guy) but he see's alot of codes I believe. Then I thought there should of been a 02 code shouldnt there????? The 02 sensers are only around 60 bucks. Supose I could change the front ones? I never changed em? Maybe I will when the weather breaks here in a couple of days (too damm cold still) Although my codes have not come on again since the weather got above freezing again? This also wonders me? The codes started coming on when the temps dropped below freezing in Dec. Although the gas milage has been crappy since Nov.
Whats the weather by you like this week?






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 02-03-2008, 22:48 Post: 151076
earthwrks

TP Contributor

View my Photos

View my Photos  Pics
Join Date: Dec 2003
Location: Home Office in Flat Rock, Michigan
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 3853

3
Filter by User
 Chevy Truck bad mileage Engine Code P171

Broke: The problem you are having is pretty common to your type of Chevy. And luckily for you it is really quite easy to diagnose. My diagnosis is a loose nut. Yup! It can be on the passenger side, but more commonly it's found right behind the steering wheel.

Can it be fixed? Dunno. ; )

Who luves ya baby? How's that new skid steer treating you--mine? Pretty well, thanks! 'specially with that enclosed cab AND heat!






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 02-04-2008, 11:15 Post: 151083
Chief



View my Photos

View my Photos  Pics
Join Date: Jul 2003
Location: Southwest MiddleTennessee
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 4283

3
Filter by User
 Chevy Truck bad mileage Engine Code P171

The weather here has been nice n wet, which is just what we badly need. With these engines, it can be difficult to diagnose what is causing the problem without hooking the engine up to an analyzer. The more I think about it, the oxygen sensors could be reading correctly. Another possible culprit could be a temperature sensor for the incoming air. On Cummins diesel it is called an IAT sensor but it can noticably effect fuel consumption as the more warm the air the less dense the oxygen in a given volume of air thus telling the computer to lean the mixture out or in your case with cold temps the more dense the oxygen in a given volume of air calling for more fuel until the engine has fully warmed up.

Another culprit could be the fuel you are burning. Depending upon the percentage of ethanol in the fuel, your fuel economy can take a nose dive. For example, fuel economy can drop by a third or more with E-85.

Just a few more ideas to consider.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 02-04-2008, 13:30 Post: 151085
Murf



View my Photos

View my Photos  Pics
Join Date: Dec 1999
Location: Toronto Area, Ontario, Canada
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 7067
 Chevy Truck bad mileage Engine Code P171

Don't know how applicable, or even correct this is, but it makes sense.

A friend of the family has a fleet of wreckers, mostly 1 ton units that get a lot of hard service. He said they have started swapping out air filter elements on a regular basis, they keep several per truck, and change them at the start of each shift. At first I was pretty puzzled by his comment, but the more he talked, the more it made sense, and is backed up by his 'real world' product testing.

The theory is, the combination of (intake) vacuum and snow or wet spray being pulled in, and the cold / hot cycles as the engine heats up, and then cools down after shut-down, combine to draw a lot of moisture into the air filter element. As soon as this moisture hits the magic 32 temperature all that moisture turns into ice crystals. This plugs the filter and reduces the amount of air the filter allows past it.

He says that they get, on average, based on testing they did at first, between 10% & 20% better mileage by having a clean dry filter element in the truck instead of a half frozen one.

I suspect that fact that each element is blown clean with an air hose also makes a big difference, but he swears by changing the air filter element for a dry one.

He says he has also tested (using a wood workers meter) the moisture levels in the elements before and after shifts and found a huge difference in the levels.

Best of luck.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 02-10-2008, 17:15 Post: 151216
brokenarrow



Join Date: Jan 2004
Location: Wisconsin
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1288

7
Filter by User
 Chevy Truck bad mileage Engine Code P171

New information about this problem which may help eliminate some possibilities. It is now -2 degrees again out and all of a sudden the service engine soon light comes on again. It has not came on since the last real cold streak we had. My fuel economy is always bad but the light varies. It went off for over 2 weeks, maybe a bit more.
I have a question maybe some may know. Is there a heater for the o2 sensor? I thought I read something about this but maybe it was relating to a totally different item? Was wondering if there is a problem with a 02 heater (if one exists) if this is why when it get real cold, I then get a light? I am leaning towards biting the bullet and replacing the 02 sensors.
EW
I sure am glad I waited before buying a skidsteer. I still wont absolutely need it for anouther 1.5 years BUT wait till you see what may be coming out! I think it will fit my bill perfectly.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 02-10-2008, 17:42 Post: 151219
earthwrks

TP Contributor

View my Photos

View my Photos  Pics
Join Date: Dec 2003
Location: Home Office in Flat Rock, Michigan
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 3853

3
Filter by User
 Chevy Truck bad mileage Engine Code P171

Broken: What are coming out with? Anything like it already being made?






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 02-11-2008, 19:17 Post: 151261
brokenarrow



Join Date: Jan 2004
Location: Wisconsin
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1288

7
Filter by User
 Chevy Truck bad mileage Engine Code P171

EW
Sorry, I shoulda kept quite, (no) and it may never make it out of Product Developement. Sites have been watched before for just such (exposed)info,{I can get in big doo doo} I must so I claim the fifth and must decline from further comment. Although I will talk to you as soon as I can either way. [Not that Earth Shattering anyways]for someone in the earth moving buisness but for the home owner it would be nice.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 02-25-2008, 21:09 Post: 151677
brokenarrow



Join Date: Jan 2004
Location: Wisconsin
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1288

7
Filter by User
 Chevy Truck bad mileage Engine Code P171

WhooHoo!!
The latest and greatest! (Also the stupid boy in me)
I had enough so I decided to fix the damm problem. I had it narrowed down to the 02 sensers or the mass air flow senser. I actually figured it was the mass air flow but here is my story. Everything I read say's 02 senser's should be chganged at 100K, I know darn well that if I change the MAF and it cures my MPG problem along with the SES light, I will never change em SO, I decided to change all three at the same time! (Stupid) I know. Well I get half way down my dead end road and the SES light goes out! (This is looking good) I fill up 4 days ago. I drive 220 miles and use 12.56 gallons. Ahemm, that makes like 17.5mpg!!!! (Ahhh, the crowd goes nuts again) WhooHoo! I think I will keep my truck for another 190K miles!

So The bottom line here is that I changed the (2) two front 02 sensors and the MAF sensor. I had a SES light that coded lean air/fuel mix and I had milage per gallon drop from 17-19 down to 12-13mpg. My fix was to change the three items mentioned! Two hundred twenty bucks and I am back on track. Thanks to all who chimed in and gave my their opinions, I took my time and gave it alot of thought and waited for the weather and this alowed me to do the fix myself and save bucks! Thanks!!!






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
Reply | Pop Up Window Reply | Add PhotoAdd Photo


Page 1 | [ 2 ] |      << Prev

Discussion Boards > Active Subjects > Messages as Posted > Chevy Pickup Trucks Forum

Thread 150526 Filter by Poster:
1hillbilly 1 | brokenarrow 7 | Chief 3 | DennisCTB 2 | earthwrks 3 | kthompson 1 | kwschumm 1 | Murf 1 |

 (advanced search)

Picture of the Day
hitefox1

Gas Power Tools - TroyBuilt Rototiller Horse Model with Briggs 8 hp engine
TroyBuilt Rototiller Horse Model with Briggs 8 hp engine


Unanswered Questions

HPX 4X4 fast idle and coil fd6
Agracat 2940
1997 New Holland wiring proble
Cub Cadet 1512 starter removal
Cub Cadet 1512 starter removal
gator 6x4 electrical problem
gator 6x4 electrical problem
gator wont go


Active Subjects

safety shut off
Gator seats
Help Loader hookop
JD 970 compact tractor-
Long 460
TRAIL GATOR DIESEL TRANSMISSIO
Hinomoto Roto Tiller
Hydraulic Noise


Hot Topics

Kioti Problems - comparisons t
Hydraulic Noise
2014 Subaru XV Crosstrek vs CR
Komatsu D10S-1 loader backho
How to renovate a lawn
What Rear Tractor Implement Do
Long 2360 D115 engine vs D124
ih 454 headlight replacement


Featured Suppliers

Mountain Creek Labradoodles
      MountainCreekLabradoodles.com





New Forums on Gun Sport Shooting and Hunting -- BarrelPoint.com  New Forums on Horses ManePoint.com
Talk Horses at ManePoint
Hunting + Gun Sports at BarrelPoint



Most Viewed

+ pulling trailers
+ 6 0 gas mileage
+ Chevy Truck bad mileage Engine Code P171
+ Duramax Duramin
+ Chevy Colorado four door s
+ Flatbed design
+ Brake problems
+ Dual Exhaust Cat Back
+ Electric Brake Controler
+ Tire suggestions

Most Discussion

+ Duramax Duramin
+ Truck bed limits
+ Dual Exhaust Cat Back
+ Can gasoline pickup be convert
+ Chevy Colorado four door s
+ Double dumb Colorado door lo
+ Tire suggestions
+ Chevy Truck bad mileage Engine
+ pulling trailers
+ Tires

Newest Topics

+ Chevy Pickup truck bed wanted
+ codes 174 171 332
+ GMC Sonoma
+ s-10 heater core replacement
+ Tires
+ Time to trade pickups
+ Chevy Colorado four door s
+ Chevy Pickup Thin Sheet Metal Body Dents Dings
+ Chevy Truck bad mileage Engine Code P171
+ GMC Diesel pickup
















Turbochargers for Tractors and Industrial Machines
Cab Glass for Tractors and Industrial Machines

Alternators for Tractors and Industrial Machines
Radiators for Tractors and Industrial Machines

Driveline Components for Tractors and Industrial Machines
Starter Motors for Tractors and Industrial Machines