Diesel Bombers SIGN UP NOW

National Association of Diesel Motorsports
Go Back   Diesel Bombers > Dodge Cummins > 6.7 Liter Dodge Cummins 07.5-UP
Sign in using an external account
Register Forgot Password?
Search


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

6.7 Liter Dodge Cummins 07.5-UP Discussion of 6.7 Liter Dodge Cummins Diesels

Welcome to Diesel Bombers Forums!
Welcome to DieselBombers .com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Diesel Bombers Forums community today!


Reply
 
 
 
submit to reddit
 
LinkBack Thread Tools Search this Thread
  #1  
Old 06-22-2010, 10:03 PM
6.7Cummins's Avatar
Diesel Fan

   

ATTN fuel relief valve problems

Hi guys, Im having a problem with my 'new to me' 6.7 cummins. This is my first diesel but im learing fast!

The truck has straight pipe, smartyME, deletes.
The problem Im having is when I drive down the highway it throws code p000f, fuel valve opened. That is the ONLY code. When driving I can tell when it happens because the truck is down on power making almost no boost, BUT it does not 'fall on its face' like it should if its really blowing off 30k lbs of pressure!

The werid thing is its only going down the highway after about 30min. I can drive it wide open stop light to stop light and its fine!!

Any ideas? I dont think the valve is really open, mabey a bad sensor? something wrond with the cp3?

(i have this post on other sites as well so if this is old to you then I appologize, thanks for the help)
Reply With Quote
  #2  
Old 06-24-2010, 09:06 PM
Diesel Fan

   
View Member's FaceBook Profile

Default

have you ever shimmed the rail plug itself, and when it throws the code the ECM is gonna tell the truck to defuel so it will lower power levels. what do you have the Rail Pressure Revo set on for the Smarty

rbmedic75's Sig:08 Cummins QC SB 6 stick 6.7---- BOD EWG/BOD Intake Horn/BOD 90 HP nozzles/BOD traction Bars/Testing BOD 6"longarmkit, 37 toyo OC MT/Banks Intercooler/6'twin Aussie stacks/Smarty 18TNT POD/Isspro EV2 tripple pillar/Prestige Pocket Flares/soon to have the BOD Bumpers
Reply With Quote
  #3  
Old 06-24-2010, 09:43 PM
6.7Cummins's Avatar
Diesel Fan

   

Default

I have not shimmed the rail. But the truck is use so I'm not 100% sure wut the last owner did. The revo rail pressure is set to defualt. The code comes on even if I remove the smarty altogether.
Reply With Quote
  #4  
Old 06-24-2010, 09:50 PM
Diesel Fan

   
View Member's FaceBook Profile

Default

you have either a bad rail plug or faulty sensor boss I can help ya by telling you how to shim it if your interested takes about a half hour and 3 little #4 flat washers
Reply With Quote
  #5  
Old 06-24-2010, 09:53 PM
6.7Cummins's Avatar
Diesel Fan

   

Default

Originally Posted by rbmedic75 View Post
you have either a bad rail plug or faulty sensor boss I can help ya by telling you how to shim it if your interested takes about a half hour and 3 little #4 flat washers
I read how to shim the rail, seemed pretty straight forward. I just didnt want to do it in fear of causing damage. Is there a way to check the sensor? or is the next step to shim the rail and go from there?
Reply With Quote
  #6  
Old 06-24-2010, 10:11 PM
Diesel Fan

   
View Member's FaceBook Profile

Default

yeah shimming it is pretty easy just use padded jaws in your vise and be gentle with it. Honestly If I had to make a guess I would say the sensor is bad and not real way ot check it that I know of other than Chrysler Scan tool maybe. But pluggin or shimming the rail will let you know which one it is if you shim it and still get it money is on it being a bad sensor
Reply With Quote
  #7  
Old 06-24-2010, 11:11 PM
wildbill's Avatar
BOMBARDIER
Status: Being Twisted In the Wind

   
View Member's Albums View Member's FaceBook Profile View Member's Youtube Account

Default

Might be a bad sensor, or it may not be period. I'd have it looked at as mentioned above to be sure it's a sensor. $200 is a little much to spend on a new one, then find out it wasn't the problem.

wildbill's Sig:
2006 Ram Cummins
"RAMPAGE"





Reply With Quote
  #8  
Old 06-25-2010, 01:27 PM
Diesel Fan

   
View Member's FaceBook Profile

Default

one other thing I jsut thought of since you bought the truck set up the way it is there is a pssibility that they had put a industrial injection rail plug in it which we have found recently to have a pretty bad defect in them we believe. What the thoughts are is that the II rail plugs may not be machined at just the right angle which is allowing fuel to leak around the rail plug and return back to the fuel filter thus its leaking all the time (or most) whic will trip the FRP sensor and throw the code your getting becasue the truck thinks it has exceeded the pressure limits so this is a very good possibility to what is happening to you. Guys are switching back to the stock plug and have a world of difference in performance so not sure how you can tell if this is what is happening yet but ill check into it and if I find out more let ya know. Dont know what the rules are here about posting links to other sites so dont want to get in trouble but this is being discussed on the other site im on right this minute
Reply With Quote
  #9  
Old 06-25-2010, 01:53 PM
6.7Cummins's Avatar
Diesel Fan

   

Default

Originally Posted by rbmedic75 View Post
one other thing I jsut thought of since you bought the truck set up the way it is there is a pssibility that they had put a industrial injection rail plug in it which we have found recently to have a pretty bad defect in them we believe. What the thoughts are is that the II rail plugs may not be machined at just the right angle which is allowing fuel to leak around the rail plug and return back to the fuel filter thus its leaking all the time (or most) whic will trip the FRP sensor and throw the code your getting becasue the truck thinks it has exceeded the pressure limits so this is a very good possibility to what is happening to you. Guys are switching back to the stock plug and have a world of difference in performance so not sure how you can tell if this is what is happening yet but ill check into it and if I find out more let ya know. Dont know what the rules are here about posting links to other sites so dont want to get in trouble but this is being discussed on the other site im on right this minute
That sounds like it could be my problem!!
that makes perfect sense. I know at one time it appears that this truck had a edge w/ att. stacked with the smarty.

6.7Cummins's Sig:2007 Cummins 6.7/auto: deletes, smarty, straight pipe....more to come!
Reply With Quote
  #10  
Old 06-25-2010, 02:09 PM
Diesel Fan

   
View Member's FaceBook Profile

Default

if they were stacking the edge with the smarty 99% they plugged the rail and that is what is screwing you up the onlly way to tell is to try and find a stock rail plug in that case. PM coming bud

also do you have a Rail Pressure gauge this will tell us for sure if its bleeding or popping of or if its just a bad sensor. and if yor gonna run the smarty and do much more to the truck a Rail Pressure gauge is one your gonna NEED anyway. I like the Issopro EV2 just FWIW and get my stuff from James at rollinsmokediesel.com or Tony @ Mightydiesel.com both awesome guys to deal with tell them Buck sent ya. They are both vendors for my fab stuff!

Last edited by rbmedic75; 06-25-2010 at 02:16 PM..
Reply With Quote
 
 
 
submit to reddit
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search


LinkBacks (?)
LinkBack to this Thread: http://www.dieselbombers.com/6-7-liter-dodge-cummins-07-5-up/53119-fuel-relief-valve-problems.html
Posted By For Type Date
Cummins Diesel Troubleshooting - Kosmix : Reference, Videos, Images, News, Shopping and more... This thread Refback 07-19-2010 11:25 PM

 
All times are GMT -5. The time now is 04:04 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607