Alfa Romeo Forum banner

jerky

  1. 2.0 TS imperfect throttle control, slightly jerky at lower rpm.

    Alfa GTV & 916 Spider
    Since I have my car it never behaved right. Facts: - new Marelli AFM since yesterday - car became even worse ( I am not sure if it was necessary - the new unit reads very different values than MES gives as target, just like the original BOSCH unit did, it reads ca. the double amount of air . In...
  2. Jerky gear changing during spirited driving - best techniques?

    Alfa 147, 156 & GT
    Hi all, just looking for some shifting advice. When pressing on and letting my twinny hit the 6k mark (which sounds glorious with my ragazzon / biscioni rear exhaust) I find I can't change smoothly or quickly enough without a little jerk, and curiously the revs also rise too - possibly some...
  3. 159 2.4 JTDM Smokey & Jerky start.

    Alfa 159, Brera & 946 Spider
    Hi fellow alfisti, I've got an Alfa Romeo 159 2.4 JTDM (210 bhp). Recently I've noticed a smell coming from the car, which is quite fumey. The car however worked find just a jerky, smokey start up at times when cold. Yesterday, the car was really jerky when I started the car (cold) and...
  4. Jerky acceleration sometimes around the 2.5 mark

    Alfa 159, Brera & 946 Spider
    1.9 jtdm 150HP saloon. When my car gets warm (temp is ~90) when accelerating, it starts jerking / skipping. And I can clearly hear a "skipping" sound as well. Not sure if it's clutch, wheels or shaft or what it is. It doesn't happen when the car is cold I think. My theory is that a component...
  5. Alfa Romeo 159 solving Jerky Issue

    Alfa 159, Brera & 946 Spider
    Hi Guys, I just got my ride Alfa 159 last week ago. I have an issue of driving the 159 in slow speed from gear 1 to gear 2. For high speed it goes perfectly, but for low speed during traffic jammed it is hard to control. The car alway jerk like driving a manual car, and it is difficult to...
  6. Poor throttle response and jerky acceleration

    Alfa 159, Brera & 946 Spider
    I have a four year old Alfa 159 2.0 jtdm sportwagon. I bought it when it was one year old, and it has always had a very poor throttle response in the low revs. I have gotten used to pressing the gaspedeal a little earlier before releasing the clutch, but I have always been annoyed by this. It...
  7. 2003 147 jerky windows

    Alfa 147, 156 & GT
    Hi all Both the windows on my 147 (2 door car) go down ok but only go up about 1inch at a time with a beep from each press of the switch. The passenger window only works from passenger side. I've heard the windows can be troublesome and the last 2 147s i saw at my local scrapyard both had window...
  8. Revs abit jerky

    Alfa 147, 156 & GT
    Ive noticed lately that when I'm either taking off from 1st or when I'm in 2nd the revs between 1k and 2k sometimes 2-3 are not as smooth , There's a small but noticeable jerkiness It does need a service and I feel the cam belt etc does need changing but not sure I have a 07 gt 2.0 which...
  9. 156 Power Steering Jerky and Whining

    Alfa 147, 156 & GT
    Dear All, I have an intermittent whine coming from, what I suspect is, the power steering. Every now and then the car makes a whining noise when turning the steering wheel left and right. The noise gets louder as the engine speed increases. Push the throttle and the whine grows. Turn the...
  10. Selespeed very jerky when cold

    Alfa 147, 156 & GT
    Hi, When I start up and pull off, particularly in reverse the selespeed jerks quite a lot, but this disappears when warmed up. Can anyone give me an idea as to what it may be? Cheers, Paul
  11. 156 JTD rough idle, jerky accellertation, lots of smoke,

    Alfa 147, 156 & GT
    As the title says. Ive tried lots to sort the problem but its getting worse day after day. Ive cleaned the manifold, throttle body, egr. It was ok for a few miles after this but then the problem came back worse then before. Turbo hoses are fine with no leaks, its not using any oil or coolant...
  12. Drop in MPG & Selespeed jerky in 1st

    Alfa 147, 156 & GT
    Hi All, My 147 Sele's MPG has dropped from around 29-30 to 23-24, or 340 miles per tank full vs 270 per tank. Also it's become jerky pulling away, particularly when performing hill starts (not fun driving around Bristol). The two problem started around the same time I think, so I'm assuming...
  13. FIXED - After start noise and jerky acceleration.

    Alfa 147, 156 & GT
    Well as the title says. Alfa 147 1.6TS - Daily use = 10 Miles, Mileage = 70,000 Symptoms: 1. Rattle noise for about 1 second after start. 2. When pulling away from a junction with the engine cold it would almost jump down the road. I changed the spark plugs and noticed a huge change. Car...
  14. Jerky from 3rd to 2nd TCT

    Alfa Giulietta
    Going uphill, slowing down, shifted from 3 to 2 and sometimes I can feel there'a a delay in power transfer and then the car will lurch forward all of a sudden. Should I ease off the gas a bit or take of gas all together when down shifting?
  15. Gearstick moves when in 3rd + jerky driving

    Alfa 147, 156 & GT
    As I got a small increase in my salary I've decided to get down and slowly start repairing Alfie. First thing I had done was have the sump welded and new oil put in. Next on the list is the WP but this will be for another month. I filled up the expansion tank and took it for a small drive to see...
  16. loss of power and jerky at low revs in my 1.6 ts

    Engines (TS, JTS, JTD & V6)
    Hi all Recently I've been noticing that at low revs i.e 1500rpm, the car is very jerky and lacking power during acceleration until something seems to kick in around 3500rpm and then car acts normal again. problem seems to be quite temperamental as sometime its fine, but otherwise its doing...
  17. jerky gtv

    Alfa GTV & 916 Spider
    hi all, when im in traffic and just touch the accelerator the car jerks about , my mates had it on his snap on scanner and its showing no faults apart from that it pulls well , any ideas whats causing this , cheers
  18. GT Engine Running A Bit Jerky At Idle Cold Start

    Alfa 147, 156 & GT
    This little issue popped up today. From cold start my idle is noticeably fluctuating ....Clears and runs ok by the time I drive out my street. About 500yds ....Any ideas anyone ? what should I be checking? Thanks
  19. 156 Selespeed jerky, pressure drops - clutch solenoid?

    Alfa 147, 156 & GT
    Hi everyone, Moscow calling once again. Sele problems seem endless (( Some time ago we replaced dead clutch, recalibrated the sele with FiatECUScan, after that the car ran fine. For a week. Then, sele pump died. We replaced the pump with a new one, but what happens now is: 1) the car is...
  20. 164 24v jerky overrun

    Alfa 164 & 166
    Recently my ultra-reliable 24v auto has begun to be a bit jerky on the overrun, enough to annoy she who must be obeyed. On one occasion the injector warning light flashed briefly. Then it just cleared itself for a few days before doing it again. Any ideas? Could it just be dirty fuel? Chris
Top