My engine turns off when im slowing down surprisingly... please help! - 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 18-10-09
yairmirkov's Avatar
Status: -
Newbie
 
Join Date: Oct 2009
Location: Dominican Republic
County: Santo Domingo
Posts: 10
Images: 5

Member car:

156 selespeed 2.0TS, 2001

My engine turns off when im slowing down surprisingly... please help!

Every time i slow down too fast on 1st or 2nd gear, my engine goes off. the rev go down to 1500 - 1000 and just bungee to zero. it doesnt happen all the time, but it happens... and its bad enough. other than that, the car is performing good... i already changed everything possible.. i dont know whats left to do... please guys HELP me out..

Thanks

Giovanni Yair Mirkov

Alfa 156, 2001, 2.0TS, selespeed, 69,000km
Reply With Quote
Sponsored Links
Advertisement
 
  #2 (Post Link)  
Old 18-10-09
italiaautoparts's Avatar
Status: will beat and specialist repair quote
Identity Confirmed
Authorised Trader
 
Join Date: Aug 2007
Location: United Kingdom
County: Staffordshire
Posts: 2,380

Member car:

147 GTA red with jet fins

its prob your maf or throttle sensor
Reply With Quote
  #3 (Post Link)  
Old 18-10-09
156Chris's Avatar
Status: Wanted ... Recaro Cloth Interior (prefer Electric)
AO Platinum Member
 
Join Date: Jul 2007
Location: United Kingdom
County: Surrey
Posts: 12,807
Images: 12

Member car:

Alfa 156 2.4 JTD 200bhp+

could be maf ... alternatively when was your airfilter last changed?
Reply With Quote
  #4 (Post Link)  
Old 18-10-09
Status: -
AO Member
 
Join Date: Mar 2006
Location: United Kingdom
County: Wiltshire
Posts: 373

Member car:

156 SW Spider MGBGT

Try the crank sensor
Reply With Quote
  #5 (Post Link)  
Old 18-10-09
chris983
Status: - Update
Guest
 
Posts: n/a
when was the cambelt changed because if its not been timed right it will make this happen.
Reply With Quote
  #6 (Post Link)  
Old 20-10-09
yairmirkov's Avatar
Status: -
Newbie
 
Join Date: Oct 2009
Location: Dominican Republic
County: Santo Domingo
Posts: 10
Images: 5

Member car:

156 selespeed 2.0TS, 2001

Well, thanks guys. i will have to check it all again... after all... im in an island with something like 8 alfa romeos...
The MAF was changed several times already to resolve this problem, no results. also the air filter.
About the cambelt, i think its the only thing that i havent checked... tomorrow morning i will go to check it and will let you know....
it turns off a lot, if i brake and turning at the same time... like slowing down to zero while im turning, or slight downhill...

Again, thanks all for caring

Last edited by yairmirkov; 20-10-09 at 17:17.
Reply With Quote
  #7 (Post Link)  
Old 20-10-09
yairmirkov's Avatar
Status: -
Newbie
 
Join Date: Oct 2009
Location: Dominican Republic
County: Santo Domingo
Posts: 10
Images: 5

Member car:

156 selespeed 2.0TS, 2001

i placed a new crank sensor like 3 weeks ago... car starts nicer but the problem remain
Reply With Quote
  #8 (Post Link)  
Old 20-10-09
Status: Happy!
Newbie
 
Join Date: Dec 2008
Location: Cyprus
County: Larnaca
Posts: 34

Member car:

Alfa Romeo GT JTD 19

Originally Posted by yairmirkov View Post
i placed a new one like 3 weeks ago... car starts nicer but the problem remain
Its prob the throttle sencor or the rev's on the car need adjusting. Does the problem appear also when you got the A/C on ?
Reply With Quote
  #9 (Post Link)  
Old 20-10-09
yairmirkov's Avatar
Status: -
Newbie
 
Join Date: Oct 2009
Location: Dominican Republic
County: Santo Domingo
Posts: 10
Images: 5

Member car:

156 selespeed 2.0TS, 2001

yep. AC on or off... its the same. i have to say, that when im on a freeway, there's no problem and the car preforms perfectly.
Throttle sensor was replaced a week ago with 2 uses ones that worked good on the other cars ( i was there to see it on other cars ), but seems its not the problem. or maybe it has to be a new one?
Reply With Quote
  #10 (Post Link)  
Old 20-10-09
Status: Happy!
Newbie
 
Join Date: Dec 2008
Location: Cyprus
County: Larnaca
Posts: 34

Member car:

Alfa Romeo GT JTD 19

Originally Posted by yairmirkov View Post
yep. AC on or off... its the same. i have to say, that when im on a freeway, there's no problem and the car preforms perfectly.
Let me see if I understand...

This happens only on low revs? or car stopped position?
Reply With Quote
  #11 (Post Link)  
Old 20-10-09
Status: Happy!
Newbie
 
Join Date: Dec 2008
Location: Cyprus
County: Larnaca
Posts: 34

Member car:

Alfa Romeo GT JTD 19

Have you tried the selespeed thread? I took a quick glance at it in the past (I'm not on selespeed) and I think I recall something similar.
Reply With Quote
  #12 (Post Link)  
Old 20-10-09
yairmirkov's Avatar
Status: -
Newbie
 
Join Date: Oct 2009
Location: Dominican Republic
County: Santo Domingo
Posts: 10
Images: 5

Member car:

156 selespeed 2.0TS, 2001

Originally Posted by brut69 View Post
Have you tried the selespeed thread? I took a quick glance at it in the past (I'm not on selespeed) and I think I recall something similar.
selespeed was adjusted and calibrated recently...
Reply With Quote
  #13 (Post Link)  
Old 20-10-09
yairmirkov's Avatar
Status: -
Newbie
 
Join Date: Oct 2009
Location: Dominican Republic
County: Santo Domingo
Posts: 10
Images: 5

Member car:

156 selespeed 2.0TS, 2001

Originally Posted by brut69 View Post
Let me see if I understand...

This happens only on low revs? or car stopped position?
only on low rev when im slowing down and about to stop the car. on 1st or 2nd gear.
Reply With Quote
  #14 (Post Link)  
Old 22-10-09
yairmirkov's Avatar
Status: -
Newbie
 
Join Date: Oct 2009
Location: Dominican Republic
County: Santo Domingo
Posts: 10
Images: 5

Member car:

156 selespeed 2.0TS, 2001

it happens also when im on Neutral... if i take it up to 3-5000rpm and leave the gas, the revs go down to zero and the engine shuts down...
Reply With Quote
  #15 (Post Link)  
Old 22-10-09
Ajr's Avatar
Ajr Ajr is offline
Status: -
AO Silver Member
 
Join Date: Feb 2009
Location: United Kingdom
County: West Midlands
Posts: 1,062

Member car:

156 V6

Don't make sence,

Does it feel like its drawing back when it stalls or does it just die ?
Reply With Quote
  #16 (Post Link)  
Old 23-10-09
yairmirkov's Avatar
Status: -
Newbie
 
Join Date: Oct 2009
Location: Dominican Republic
County: Santo Domingo
Posts: 10
Images: 5

Member car:

156 selespeed 2.0TS, 2001

yes it does, goes back a little bit when i turn it on again.

Originally Posted by Ajr View Post
Don't make sence,

Does it feel like its drawing back when it stalls or does it just die ?
yes it does, goes back a little bit when i turn it on again.
Reply With Quote
  #17 (Post Link)  
Old 23-10-09
Ajr's Avatar
Ajr Ajr is offline
Status: -
AO Silver Member
 
Join Date: Feb 2009
Location: United Kingdom
County: West Midlands
Posts: 1,062

Member car:

156 V6

The car moves when you start it ? When its in gear with the clutch dipped ?
Reply With Quote
  #18 (Post Link)  
Old 23-10-09
Status: Banned for not following the site rules
Unregistered
 
Join Date: Feb 2008
Location: United Kingdom
County: Wiltshire
Posts: 9,721
Images: 6

Member car:

146TS+Ti,156 Sele x2 + V6

To me this sounds like clutch drag, is there a rumbling sound from the gearbox area when you start the car?

Is the car selecting all gears on the first attempt?

If you have Alfadiag have you checked the clutch rod length is between 28 and 28.5mm?

If you just turn the key to MAR (don't start the engine though) will it select all gears from R to 5th?

Are the brake lights working when you press the pedal?

Have you checked the inlet hoses for cracks, splits, loose joints or other leaks?

When here the Spark plugs last replaced?

What grade fuel are you using?

Have you tried to remove the aux belt and drive the car (not too far though)? The steering will be heavy but it's going to rule out the other cuse I've had that causes this to happen, which is the steering pump.
Reply With Quote
  #19 (Post Link)  
Old 24-10-09
Ajr's Avatar
Ajr Ajr is offline
Status: -
AO Silver Member
 
Join Date: Feb 2009
Location: United Kingdom
County: West Midlands
Posts: 1,062

Member car:

156 V6

i agree with smaky, It could be somthing as stupid as a split hose

You have to get ur hands dirty, even if ur not 100% sure what ur looking for.

Surely you would tell if its the clutch?
Reply With Quote
  #20 (Post Link)  
Old 24-10-09
Pud237's Avatar
Status: -
Club Member
Membro Premio
 
Club Member Number: 71
Join Date: Apr 2006
Location: United Kingdom
County: Bedfordshire
Posts: 36,799

Member car:

GTA track slag & JTD 20v

SPLIT HOSE!

Typical symptoms of split/loose hose somewhere between the MAF and the throttle body.
Reply With Quote
  #21 (Post Link)  
Old 24-10-09
Ajr's Avatar
Ajr Ajr is offline
Status: -
AO Silver Member
 
Join Date: Feb 2009
Location: United Kingdom
County: West Midlands
Posts: 1,062

Member car:

156 V6

Originally Posted by Pud237 View Post
SPLIT HOSE!

Typical symptoms of split/loose hose somewhere between the MAF and the throttle body.
True.. Would Cause a misread of Air taken in from the MAF.

Last edited by Ajr; 25-10-09 at 00:35.
Reply With Quote
  #22 (Post Link)  
Old 25-10-09
yairmirkov's Avatar
Status: -
Newbie
 
Join Date: Oct 2009
Location: Dominican Republic
County: Santo Domingo
Posts: 10
Images: 5

Member car:

156 selespeed 2.0TS, 2001

Ok, about the cluch, i installed a brand new one a month ago, the gears works perfect, all the things you mentioned about the grears, it all works perfectly fine.

split/loose hose - will check on monday !

Grade of gasoline - they call it premium here, but its lower than the usual in europe. i add octane booster.

Plugs - all new.

Thanks for the help, i will let you know what i find. thanks !!!!
Reply With Quote
  #23 (Post Link)  
Old 26-10-09
Ajr's Avatar
Ajr Ajr is offline
Status: -
AO Silver Member
 
Join Date: Feb 2009
Location: United Kingdom
County: West Midlands
Posts: 1,062

Member car:

156 V6

octane booster don't work - Proven.

was the slave cylinder changed along with the new clutch ?
Reply With Quote
  #24 (Post Link)  
Old 27-10-09
Mitch916's Avatar
Status: AROC 916 Registrar
AO Gold Member
 
Join Date: Nov 2002
Location: United Kingdom
County: Kent
Posts: 8,127
Images: 8

Member car:

156 2.4 JTD, GTV 2.0TS

Squirt of carb cleaner into the throttle body?
Reply With Quote
  #25 (Post Link)  
Old 27-10-09
ransoman's Avatar
Status: DNA, D is for :D
AO Silver Member
 
Join Date: Jan 2007
Location: United Kingdom
County: Aberdeenshire
Posts: 2,916
Images: 1

Member car:

Giulietta 170 MA + GTV TS

I had this problem on my 145. I was told it was the Idle control stepper motor however to resolve the issue i:

Replaced the Maf with an origional Bosh (one on the car was a pattern).
Cleaned and polished the throttle body.
Replaced the lambda
Injector cleaner through fuel tank.

This fixed the issue and made the car a lot faster! (tip, when cleaning the throttlebody, ensure you remove the idle stepper motor and and fly by wire unit without moving anything. This will allow you to open the butterfly by hand without damaging the motor).
Reply With Quote
Reply

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

Tags
engine, slowing, surprisingly, turns

Thread Tools


Recently 'Read'
No History to show

Useful Links
Lost Password?
AO Merchandise
FAQs
Register

External Links
Alfa Romeo...
Alfa Romeo GTV 2.0...
2004 ALFA ROMEO 147...
2011 Alfa Romeo...
Alfa Romeo...

Alfa Romeo

Recent Image

Alfa 159

View paul.o's images

Search

Forums

Classifieds
   

Gallery

Social Groups
   

Members
   


Did you know..?
Did you know..?
Clicking on a members username within a forum post displays extra options.


New To Site? Need Help?

All times are GMT. The time now is 10:39.


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