Click here to ask Alan a question.

 
in

Browse All Answers

Subject: Ford Fiesta '93
Sender's Name: Paul McManus
Question: My girlfriend bought a '93 Ford Fiesta 1.1 (single point injection) recently. The car is running very well, low on petrol etc however last weekend during the very cold spell out of the blue it refused to start. It needed a tow and then ran fine for a few days. It fires once or twice then nothing. When I tow it it takes about a minute before anything happens, then it runs very badly for a few seconds and after that its perfect. It appears to be temperature related.
Answer: If it is temperature related, then it must be down to the temperature sensor. The ECU relies on the sensor to give information as to temperature, then corrects the mixture accordingly. If it is shorted, then the ECU will think it's hot all the time. Check the usual plugs and stuff, although the ignition system gives little trouble on these. Apart from that, you'll have to trot off to your local tuning expert...!
 
Subject: Renault Megane Coupe 1.6
Sender's Name: Alex Grioli
Question: I have a Renault Megane Coupe 1.6(petrol). When starting early in the morning and the engine is cold it is OK but then when the temp goes up to half the engine starts to idle eratically and eventually stalls. It will restart immediately. After driving it for a few seconds it will do it again CONSEQUENTLY for about 4-5 times(i.e. hesitate on acceleration and stall), I restart it every time( the problem seems to be between 1,000-2000 revs only). After 4-5 times SURPRISINGLY it runs perfectly for the whole day
Answer: Get your mixture checked, it sounds like you have an oxygen sensor fault, either not working at all, or a lambda heater fault.
 
Subject: Corrado G60
Sender's Name: Sandy Mackenzie
Question: I own a corrado G60 its had chip and 68mm pulley installed, plus a full stainless steel scorpion exhaust and a jetex air filter its giving me 192bhp. I was wondering if a bigger intercooler would give me more power and how much would it cost.
Answer: I doubt if a bigger intercooler would give any more power, but it might help if you give the car a good thrashing, thus raising the charge temperature. Hot air is bad news for power !
 
Subject: Ford Sierra 2.0i GT
Sender's Name: Dan Gunvald
Question: Hi, i have a '92 Ford Sierra 2.0i GT. All over the place you see that the Escort RS2000 from the same year using the same engine, but with af 16v head instead of a 8v head. The question is can I install a RS2000 head in my car, and still use the original inlet and outlet manifold?
Answer: The trouble is, the engines are very different, and you can't just swop the parts that way . I'm afraid it's a Cosworth for you !
 
Subject: Clio RSi
Sender's Name: Dean Robinson
Question: have a 1993 Clio RSi (1974cc) which I have just acquired. The vehicle will not idle at a constant rpm varying between about 500rpm and 800rpm.It also stalls out when you are changing down the box. The problem was made better by putting in Bosch 4 plugs but consequently worse when I added a Pipercross induction kit. Have you any ideas which may help me locate the source of the fault? The vehicle only has 28000 miles on it and has been used very little during the last 4 years.
Answer: The only reasons for a bad idle are poor mixture control, or poor idle speed control. Have you checked for an air leak ?. The ECU controls the idle via the idle valve, you could try cleaning the valve with carb cleaner, also the breather system. Failing that you might find a diagnostic shop, willing to fix it!
 
< Previous 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 Next >