Rattle noise from engine + idling injection problem - Alfa Romeo Forum
You are currently unregistered, register for more features.    
 
  Home Forums AO Club Member Gallery Classifieds Trade Directory  

Go Back   Alfa Romeo Forum > Supported Alfa Romeo Models > Technical & Vehicle Assistance > Alfa 147, 156 & GT

Reply
 
LinkBack Thread Tools
  #1 (Post Link)  
Old 12-05-13
jasondainter's Avatar
Status: -
AO Member
 
Join Date: Dec 2009
Location: Sweden
County: Uppsala
Posts: 135

Member car:

Alfa 159 1.9 JDTM (2007)

Rattle noise from engine + idling injection problem

Hi All.

I was doing a spot of trouble shooting on my alfa 156 V6 (1999 model) today and wanted to see if I could get to the bottom of a couple of problems that have been getting worse over the months.

There are two issues here but I thought they may be connected:

1) When I turn the car on from cold I notice that the engine sounds unusually noisy, on closer inspection when I pop the bonnet it seems to be coming from the area surrounding the cam belt. I filmed in on my iphone below (you can hear the noise to some degree). Also when left alone the noise gets loader and quieter you'll see about 20-30 seconds in it does this.


2) The car has an intermittent (getting worse) idling 'cut out' issue. When idling (often at a red light) the car will after say 30 seconds of sitting the injection warning light comes on and the engine splutters and goes into 'slow' mode where it becomes very hard to drive (it will drive, just very slow and odd performance). To fix this issue I have to turn the engine off, and turn it back on again, normally this fixes the issue suggesting that it's a sensor/electrics issues perhaps. My start was going to be checking out any sensors that determine air/gas intake when the car idles as it seems this may be knackered or not set properly. Any tips on this are welcome too, thought I would mentioned since it may be connected to the load engine noise issue also perhaps.

The cambelt is fairly overdue a change (its been about 120k miles now since the last change which I know is pretty bad, just saving up to get this done since in Sweden where I live it costs a bomb!). I was hoping to diagnose what the load noise was though as wouldnt think this would just be an old timing belt?
Reply With Quote
Sponsored Links
Advertisement
 
  #2 (Post Link)  
Old 12-05-13
Alfafrolic's Avatar
Status: Loving the Alfa Wave!
AO Member
 
Join Date: Jan 2012
Location: United Kingdom
County: Merseyside
Posts: 139
Images: 2

Member car:

156 Sportswagon

Listened to the sound and it is very similar to my cars rattle same place too! I have found that mine disappears when accelerating and is loudest when cruising up to lights /traffic and then goes as soon as I touch acc pedal?
Will be keeping an eye on this one, its doing my head in!
Reply With Quote
  #3 (Post Link)  
Old 12-05-13
jasondainter's Avatar
Status: -
AO Member
 
Join Date: Dec 2009
Location: Sweden
County: Uppsala
Posts: 135

Member car:

Alfa 159 1.9 JDTM (2007)

Yeah I've found its less noticeable at higher speeds, but wasn't sure if this was just because it's easier to hear when cruising at lower speeds or pulling up to lights.
Reply With Quote
  #4 (Post Link)  
Old 13-05-13
jasondainter's Avatar
Status: -
AO Member
 
Join Date: Dec 2009
Location: Sweden
County: Uppsala
Posts: 135

Member car:

Alfa 159 1.9 JDTM (2007)

Hmm the latest news here is now the noise has turned into a very noticeable humming at about 60 MPH (sounds a bit like a didgeridoo!). Its very noticeable within the car and seems to be coming from the engine area (hard to tell where exactly). Then when accelerating to about 70 MPH the car rattles (can feel this noticeably on the steering wheel).

When turning off the engine you can hear a slow rattle as the car turns itself off and the engine winds down.

Any ideas on this? I've booked into a garage next week but would be keen to hear ideas on what to test/look out for.
Reply With Quote
  #5 (Post Link)  
Old 13-05-13
Ronald's Avatar
Status: Back in V6-land!
AO Silver Member
 
Join Date: Jul 2006
Location: United Kingdom
County: Kent
Posts: 3,336
Images: 30

Member car:

156 2.5 V6

Ohhhhh, sounds expensive....
Reply With Quote
  #6 (Post Link)  
Old 14-05-13
jasondainter's Avatar
Status: -
AO Member
 
Join Date: Dec 2009
Location: Sweden
County: Uppsala
Posts: 135

Member car:

Alfa 159 1.9 JDTM (2007)

:-( any insights into what this could be?
Reply With Quote
  #7 (Post Link)  
Old 14-05-13
Mattyc's Avatar
Status: -
AO Member
 
Join Date: Jan 2005
Location: Hull
Posts: 923
Images: 2

Member car:

159 1.9 jtdm

Iwouldnt dare drive it with the cambelt been so overdue! Engine rebuild waiting to happen!
Reply With Quote
  #8 (Post Link)  
Old 14-05-13
tom17's Avatar
Status: Bright shiny wheels
AO Member
 
Join Date: Nov 2007
Location: United Kingdom
County: Kent
Posts: 397
Images: 10

Member car:

GT 3.2 V6

I had a similar sound last year, done a search on the forum and came back as cambelt tensioner, put the car in for cambelt change (which was due) sound went away, when was the belt last changed?
ok just read the last bit of your post, YOU NEED A BELT CHANGE
Reply With Quote
  #9 (Post Link)  
Old 15-05-13
jasondainter's Avatar
Status: -
AO Member
 
Join Date: Dec 2009
Location: Sweden
County: Uppsala
Posts: 135

Member car:

Alfa 159 1.9 JDTM (2007)

Hmm not great news then it seems. New cam belt = 1000+ GBP full service with all the bits that no doubt need fixing (its been a while since last service too) = 500+ combined is more than I paid for the car 4 years ago so may as well buy a new one!...

Will be a shame to see this beauty go.
Reply With Quote
Reply

Go Back   Alfa Romeo Forum > Supported Alfa Romeo Models > Technical & Vehicle Assistance > Alfa 147, 156 & GT

Tags
cam, engine, idle, idling, injection, noise, problem, rattle, rattle or buzz, rattle or vibration

Thread Tools


Recently 'Read'
No History to show

Useful Links
Lost Password?
AO Merchandise
FAQs
Register

External Links
Alfa-CF2-V6-Plenum-C...
Alfa-CF3-V6-Plenum-C...
Kleber Quadraxer...
Alfa Romeo 156...
2009 Alfa Romeo...

Alfa Romeo

Recent Image

Ao Killarney Meet...

View David P's images

Search

Forums

Classifieds
   

Gallery

Social Groups
   

Members
   


Did you know..?
Did you know..?
We take privacy seriously, this is why we advise you to check your privacy settings by visiting your profile area and selecting "Profile Privacy".


New To Site? Need Help?

All times are GMT. The time now is 21:10.


Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.

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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753