DJSniper

any of you mechanics know how to fix my 92 240se? my engine suddenly started to shake really bad. it feels like it lost half of it's power and feels like its running on 3 cylinders. when i apply gas, it sounds like a old beat up buggy.

i changed new spark plugs and replaced the distributor cap and sanded the rotor. did compression test and compression was good at all 4 cylinders. checked spark plug wires and they have normal readings. opened valve cover to inspect any faulty valves but they are fine.

im changing my fuel filter today and i will see if its that. any suggestions on what else needs to be done? help me solve this very annoying problem plz. i cant even go on the freeway because of this.

sonic16

check your injectors and your engine electronics ( fuels delivery)

Strizzy

Dude same **** happend to me (still trying to work it out).

Here is what I've done so far, I replaced the KNOCK sensor, but that didn't fix much, some of the shaking stoped though, but still feels like it has only 1/2 its power. I was going to repalce the fuel filter soon to, let me know if it helps out, and i'll let you know if I come up with anything else.

Jenn240

Check your motor mounts.

rudeboy

nope...check timing....i bet you that is the only thing left to check.

run through the whole timing checklist and i hope that will work.


worked on Rude240 when he got a rebuild last year

DJSniper

yay. replaced the freakin fuel filter and walla!!! back to normal
im a noob, so it took me like 1 1/2 hour to replace heheheh.
i installed the 95 300zx fuel filter.... i heard it gets you better revs?

-HyJynX-

k0ol, glad u fixed the problem!

sonic16

lol yeah its hard to run four cylinders on only 2 cylinders worth of gas

Strizzy

did you use the non-turbo fuel filter or the turbo fuel filter from the 95 300zx, going to replace mine this weekend.

DJSniper

they are probably the same. i just said 95 300zx and he gave me the model #

Strizzy

okay thanks.

Strizzy

Put a 95 300zx fuel filter on my car this weekend. The rev up is real impressive, and the down shift respons is real impressive. My motor still has a little shake to it though, so it didn't really fix all my problems, but it is running way way better.

DJSniper

i think my car never had a chacnge in the fuel filter, cuz when i replaced it, it had the oem filter cool to know that it helped u a bit

rudeboy

i used a Z32 fuel filter on my other car...i liked it...my butt dyno couldnt tell the diffrence...but knowing more fuel could pass through made me FEEL better

Strizzy

yeah i'm not really sure if i really got much out of it, but going from it running like crap to running like it is now...its a big diff.