Diesel Bombers SIGN UP NOW

National Association of Diesel Motorsports
Go Back   Diesel Bombers > Chevy/GMC Duramax > Chevy/GMC Duramax 01-04 LB7
Sign in using an external account
Register Forgot Password?
Search
Welcome to Diesel Bombers


Registered Members don't see these ads. Register now it's free!

Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 03-01-2013, 08:56 PM
Newbie

   

Default Lb7 fuel mileage

I have a 03 gmc 2500hd I have the muffler removed I'm only getting 13 mpg driving easy I put on an edge juice w/attitude and no change in mileage the dash says it getting 18 it's not right I pencil out 13 any ideas
Reply With Quote
  #2  
Old 03-03-2013, 08:01 PM
Hotforteacher's Avatar
Diesel Fan

   

Default

How are the injectors? Fuel filter? Even as simple as your tires and tire pressures?

Hotforteacher's Sig:2002 Crew Cab Short bed 4x4 LB7. Air box mod. Air horn mod. EFI live with DP5. 4" MBRP no muffler with 5" tip. Glow shift EGT and Boost guages. Leveling kit. 285's. Just a low budget build to tow my trailers and have some fun at the same time.
Reply With Quote
  #3  
Old 03-03-2013, 08:35 PM
Newbie

   

Default

I haven't checked my rates but I don't have smoke or haze my tires are good and I run about 70 psi filters were just changed
Reply With Quote
  #4  
Old 03-20-2013, 11:13 AM
Diesel Fan

   
View Member's Albums

Default

Do you still have your CAT on? It can be clogged and causing it not to run properly. How about air filter? I know these are some dumb questions, but a simple air filter change will help it run better..I personally know that. LOL
Reply With Quote
  #5  
Old 03-20-2013, 08:15 PM
Newbie

   

Default

I've never noticed a cat under it and the air filter is new. The truck has 330 some thousand miles on it maybe its just to tired to get any miles might just be time for a Cummins swap
Reply With Quote
  #6  
Old 04-02-2013, 12:16 PM
Diesel Fan

   

Default

Originally Posted by Gnats on View Post
I've never noticed a cat under it and the air filter is new. The truck has 330 some thousand miles on it maybe its just to tired to get any miles might just be time for a Cummins swap
How new is your CP3? Check yoru fuel rail pressure on your CS / CTS monitor.
Reply With Quote
 
 
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search


 
All times are GMT -5. The time now is 12:51 AM.

Copyright And Legal Notice Links Of Interest

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.5.2
Diesel Bombers ® - All Content Protected Under Intellectual Property Rights Law of Registered Trademarks
Reg. No. 3,494,401 Cls. 100, 101 & 104 Under Int. Cl. 38
USE AT YOUR OWN RISK WE HOLD NO LIABILITY FOR ANY CONTENT RIGHT, WRONG OR INDIFFERENT

Protected by Copyscape Duplicate Content Check


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233