My jerking E39

[kacman]

It seems that once in a while my car had a low rpm at idle (3-400RPM) til I rev it a lil bit. Likewise, when I was cruising at any speed, it jerks and I had to press the accelerator harder before everything's back to normal. No warning light appear, no power loss. Just jerk and its very annoying. Any suggestion from sifus out there..?Thanks in advance. Regards

 

[bimmer73]

Get your ignition coils, injectors, fuel filter, fuel pump MAF checked. my guess it's the fuel pump starting to loose pressure. Happen to my mind. jerk many many times and then stall.can start but cannot rev had to crawl to work shop. if that happens remove your rear seats and knock the fuel pump selenoid. Hope this helps

 

[anaksarawak]

try change your sparkplugs and cable.. plugs first

 

[Seargent]

bro if the symptom came with sudden engine stalling. u might want to check ur crankshaft and camshaft sensor. each cost bout rm350-380. At Sg bout SGD85-90